Re: Stus-List 37+ Cruise Speed

[Kyle Willson via CnC-List]

They make inflatable air wedges for leveling as well, $10-30 in my
experience but only used them for lighter woodworking projects, not an
engine.

On Wed, Sep 2, 2020, 3:55 PM Rick Brass via CnC-List 
wrote:

> I’ve seen it done with a basketball under the oilpan.
>
>
>
> Rick Brass
>
> Washington, NC
>
>
>
>
>
>
>
>
>
> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Ken
> Heaton via CnC-List
> *Sent:* Friday, August 28, 2020 9:50 AM
> *To:* cnc-list 
> *Cc:* Ken Heaton 
> *Subject:* Re: Stus-List 37+ Cruise Speed
>
>
>
> Some people have had success putting something strong and inflatable under
> the engine to raise it, something like this:
> https://www.youtube.com/watch?v=PL1ST_gZbt4
>
>
>
> Ken H.
>
>
>
> On Fri, 28 Aug 2020 at 10:32, John Conklin via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> David,
>
> I believe my vibration is also due to original Motor Mounts as well on my
> 1983 - 37. Any other tips on the replacing? I asked a mechanic and he said
> they needed a special tool to raise the engine? Also No idea how I am
> getting to back ones with out removing fuel tank Which is nice new plastic
> type but placed in starboard lazzarette  making  all entry to aft section
> rudder and motor Difficult
>
> Thanks!
>
> John Conklin
>
> S/V Halcyon
>
> S/V Heartbeat
>
> www.flirtingwithfire.com
>
>
>
>
>
>
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List 37+ Cruise Speed

[Rick Brass via CnC-List]

I’ve seen it done with a basketball under the oilpan.

 

Rick Brass

Washington, NC

 

 

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Ken Heaton 
via CnC-List
Sent: Friday, August 28, 2020 9:50 AM
To: cnc-list 
Cc: Ken Heaton 
Subject: Re: Stus-List 37+ Cruise Speed

 

Some people have had success putting something strong and inflatable under the 
engine to raise it, something like this: 
https://www.youtube.com/watch?v=PL1ST_gZbt4

 

Ken H.

 

On Fri, 28 Aug 2020 at 10:32, John Conklin via CnC-List mailto:cnc-list@cnc-list.com> > wrote:

David,  

I believe my vibration is also due to original Motor Mounts as well on my 1983 
- 37. Any other tips on the replacing? I asked a mechanic and he said they 
needed a special tool to raise the engine? Also No idea how I am getting to 
back ones with out removing fuel tank Which is nice new plastic type but placed 
in starboard lazzarette  making  all entry to aft section rudder and motor 
Difficult 

Thanks!

John Conklin  

S/V Halcyon

S/V Heartbeat

www.flirtingwithfire.com <http://www.flirtingwithfire.com> 

 





 

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Re: Stus-List 37+ Cruise Speed

[Robert Boyer via CnC-List]

I (meaning my boat yard) have replaced motor mounts a couple times in my ‘83 
LF38.  Sounds like you are overdue.  The back ones are the toughest.

Bob

Bob Boyer
S/V Rainy Days (1983 C Landfall 38 - Hull #230)
Blog: dainyrays.blogspot.com
Email: dainyr...@icloud.com
Annapolis, MD 
(Presently in Baltimore MD for the summer)

> On Aug 28, 2020, at 9:51 AM, Ken Heaton via CnC-List  
> wrote:
> 
> 
> Some people have had success putting something strong and inflatable under 
> the engine to raise it, something like this: 
> https://www.youtube.com/watch?v=PL1ST_gZbt4
> 
> Ken H.
> 
>> On Fri, 28 Aug 2020 at 10:32, John Conklin via CnC-List 
>>  wrote:
>> David, 
>> I believe my vibration is also due to original Motor Mounts as well on my 
>> 1983 - 37. Any other tips on the replacing? I asked a mechanic and he said 
>> they needed a special tool to raise the engine? Also No idea how I am 
>> getting to back ones with out removing fuel tank Which is nice new plastic 
>> type but placed in starboard lazzarette  making  all entry to aft section 
>> rudder and motor Difficult 
>> Thanks!
>> 
>> John Conklin 
>> S/V Halcyon
>> S/V Heartbeat
>> www.flirtingwithfire.com
>> 
>> 
>>> On Aug 24, 2020, at 12:45 PM, David Risch via CnC-List 
>>>  wrote:
>>> 
>>> 
>>> Chuck...replaced my motor mounts my self.   Not that hard.   Unless that V 
>>> drive makes it that hard.  
>>> 
>>> Sent from my Android. Please forgive typos. Thank you.
>>> 
>>> From: CnC-List  on behalf of Chuck Gilchrest 
>>> via CnC-List 
>>> Sent: Monday, August 24, 2020 12:40:45 PM
>>> To: cnc-list@cnc-list.com 
>>> Cc: Chuck Gilchrest 
>>> Subject: Re: Stus-List 37+ Cruise Speed
>>>  
>>> Peter,
>>> 
>>> My 1983 LF 35 came with a Yanmar 3HM with a 3 blade fixed prop.  It’s 
>>> happiest around 2200 RPM at roughly 6 knots.  Anything more than that it 
>>> sounds like the hull is shaking apart. Not a lot of sound deadening in 
>>> general with that diesel, but it gets pretty loud at higher RPMs. Since I 
>>> replaced the shaft, cutlass bearing, installed a dripless shaft seal when 
>>> purchased 4 years ago, vibration is likely motor mounts which are probably 
>>> original.
>>> 
>>> Someday…
>>> 
>>> Chuck Gilchrest
>>> 
>>> Half Magic
>>> 
>>> 1983 35 Landfall
>>> 
>>> Padanaram, MA
>>> 
>>> From: CnC-List  On Behalf Of Peter 
>>> Cowenhoven via CnC-List
>>> Sent: Monday, August 24, 2020 10:18 AM
>>> To: cnc-list@cnc-list.com
>>> Cc: Peter Cowenhoven 
>>> Subject: Re: Stus-List 37+ Cruise Speed
>>> 
>>>  
>>> 
>>> I've got a Westerbeke 33 with a 2 blade folding prop.
>>> 
>>>  
>>> 
>>> I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.
>>> 
>>> Sent from Yahoo Mail on Android
>>> 
>>>  
>>> 
>>> On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List
>>> 
>>>  wrote:
>>> 
>>> Hi
>>> 
>>> What is everyone’s motor/ rpm optimal motoring speed? 
>>> 
>>>  
>>> 
>>> Thanks
>>> 
>>> Rob
>>> 
>>>  
>>> 
>>>  
>>> 
>>>  
>>> 
>>> Sent from my iPhone
>>> 
>>> ___
>>> 
>>>  
>>> 
>>> Thanks everyone for supporting this list with your contributions.  Each and 
>>> every one is greatly appreciated.  If you want to support the list - use 
>>> PayPal to send contribution --  https://www.paypal.me/stumurray
>>> 
>>>  
>>> 
>>> ___
>>> 
>>> Thanks everyone for supporting this list with your contributions.  Each and 
>>> every one is greatly appreciated.  If you want to support the list - use 
>>> PayPal to send contribution --   https://www.paypal.me/stumurray
>>> 
>> ___
>> 
>> Thanks everyone for supporting this list with your contributions.  Each and 
>> every one is greatly appreciated.  If you want to support the list - use 
>> PayPal to send contribution --   https://www.paypal.me/stumurray
>> 
> ___
> 
> Thanks everyone for supporting this list with your contributions.  Each and 
> every one is greatly appreciated.  If you want to support the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray
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Re: Stus-List 37+ Cruise Speed

[David Risch via CnC-List]

Scissor jack worked just fine for me.

From: CnC-List  On Behalf Of Joel Aronson via 
CnC-List
Sent: Friday, August 28, 2020 10:01 AM
To: cnc-list 
Cc: Joel Aronson 
Subject: Re: Stus-List 37+ Cruise Speed

I've heard of people using a basketball.  FWIW

Joel

On Fri, Aug 28, 2020 at 9:51 AM Ken Heaton via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
Some people have had success putting something strong and inflatable under the 
engine to raise it, something like this: 
https://www.youtube.com/watch?v=PL1ST_gZbt4

Ken H.

On Fri, 28 Aug 2020 at 10:32, John Conklin via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
David,
I believe my vibration is also due to original Motor Mounts as well on my 1983 
- 37. Any other tips on the replacing? I asked a mechanic and he said they 
needed a special tool to raise the engine? Also No idea how I am getting to 
back ones with out removing fuel tank Which is nice new plastic type but placed 
in starboard lazzarette  making  all entry to aft section rudder and motor 
Difficult
Thanks!
John Conklin
S/V Halcyon
S/V Heartbeat
www.flirtingwithfire.com<http://www.flirtingwithfire.com>



On Aug 24, 2020, at 12:45 PM, David Risch via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:

Chuck...replaced my motor mounts my self.   Not that hard.   Unless that V 
drive makes it that hard.
Sent from my Android. Please forgive typos. Thank you.


From: CnC-List 
mailto:cnc-list-boun...@cnc-list.com>> on behalf 
of Chuck Gilchrest via CnC-List 
mailto:cnc-list@cnc-list.com>>
Sent: Monday, August 24, 2020 12:40:45 PM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com> 
mailto:cnc-list@cnc-list.com>>
Cc: Chuck Gilchrest mailto:csgilchr...@comcast.net>>
Subject: Re: Stus-List 37+ Cruise Speed


Peter,

My 1983 LF 35 came with a Yanmar 3HM with a 3 blade fixed prop.  It’s happiest 
around 2200 RPM at roughly 6 knots.  Anything more than that it sounds like the 
hull is shaking apart. Not a lot of sound deadening in general with that 
diesel, but it gets pretty loud at higher RPMs. Since I replaced the shaft, 
cutlass bearing, installed a dripless shaft seal when purchased 4 years ago, 
vibration is likely motor mounts which are probably original.

Someday…

Chuck Gilchrest

Half Magic

1983 35 Landfall

Padanaram, MA

From: CnC-List 
mailto:cnc-list-boun...@cnc-list.com>> On Behalf 
Of Peter Cowenhoven via CnC-List
Sent: Monday, August 24, 2020 10:18 AM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: Peter Cowenhoven mailto:pscowenho...@yahoo.com>>
Subject: Re: Stus-List 37+ Cruise Speed



I've got a Westerbeke 33 with a 2 blade folding prop.



I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.

Sent from Yahoo Mail on 
Android<https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>



On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List

mailto:cnc-list@cnc-list.com>> wrote:

Hi

What is everyone’s motor/ rpm optimal motoring speed?



Thanks

Rob







Sent from my iPhone

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___

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Thanks everyone for supporting this list with your contributions.  Each and 
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--
Joel
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Re: Stus-List 37+ Cruise Speed

[Joel Aronson via CnC-List]

I've heard of people using a basketball.  FWIW

Joel

On Fri, Aug 28, 2020 at 9:51 AM Ken Heaton via CnC-List <
cnc-list@cnc-list.com> wrote:

> Some people have had success putting something strong and inflatable under
> the engine to raise it, something like this:
> https://www.youtube.com/watch?v=PL1ST_gZbt4
>
> Ken H.
>
> On Fri, 28 Aug 2020 at 10:32, John Conklin via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
>> David,
>> I believe my vibration is also due to original Motor Mounts as well on my
>> 1983 - 37. Any other tips on the replacing? I asked a mechanic and he said
>> they needed a special tool to raise the engine? Also No idea how I am
>> getting to back ones with out removing fuel tank Which is nice new plastic
>> type but placed in starboard lazzarette  making  all entry to aft section
>> rudder and motor Difficult
>> Thanks!
>>
>> John Conklin
>> S/V Halcyon
>> S/V Heartbeat
>> www.flirtingwithfire.com
>>
>>
>> On Aug 24, 2020, at 12:45 PM, David Risch via CnC-List <
>> cnc-list@cnc-list.com> wrote:
>>
>> 
>> Chuck...replaced my motor mounts my self.   Not that hard.   Unless that
>> V drive makes it that hard.
>>
>> Sent from my Android. Please forgive typos. Thank you.
>>
>> --
>> *From:* CnC-List  on behalf of Chuck
>> Gilchrest via CnC-List 
>> *Sent:* Monday, August 24, 2020 12:40:45 PM
>> *To:* cnc-list@cnc-list.com 
>> *Cc:* Chuck Gilchrest 
>> *Subject:* Re: Stus-List 37+ Cruise Speed
>>
>>
>> Peter,
>>
>> My 1983 LF 35 came with a Yanmar 3HM with a 3 blade fixed prop.  It’s
>> happiest around 2200 RPM at roughly 6 knots.  Anything more than that it
>> sounds like the hull is shaking apart. Not a lot of sound deadening in
>> general with that diesel, but it gets pretty loud at higher RPMs. Since I
>> replaced the shaft, cutlass bearing, installed a dripless shaft seal when
>> purchased 4 years ago, vibration is likely motor mounts which are probably
>> original.
>>
>> Someday…
>>
>> Chuck Gilchrest
>>
>> Half Magic
>>
>> 1983 35 Landfall
>>
>> Padanaram, MA
>>
>> *From:* CnC-List  *On Behalf Of *Peter
>> Cowenhoven via CnC-List
>> *Sent:* Monday, August 24, 2020 10:18 AM
>> *To:* cnc-list@cnc-list.com
>> *Cc:* Peter Cowenhoven 
>> *Subject:* Re: Stus-List 37+ Cruise Speed
>>
>>
>>
>> I've got a Westerbeke 33 with a 2 blade folding prop.
>>
>>
>>
>> I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.
>>
>> Sent from Yahoo Mail on Android
>> <https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>
>>
>>
>>
>> On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List
>>
>>  wrote:
>>
>> Hi
>>
>> What is everyone’s motor/ rpm optimal motoring speed?
>>
>>
>>
>> Thanks
>>
>> Rob
>>
>>
>>
>>
>>
>>
>>
>> Sent from my iPhone
>>
>> ___
>>
>>
>>
>> Thanks everyone for supporting this list with your contributions.  Each
>> and every one is greatly appreciated.  If you want to support the list -
>> use PayPal to send contribution --  https://www.paypal.me/stumurray
>>
>>
>>
>> ___
>>
>> Thanks everyone for supporting this list with your contributions.  Each
>> and every one is greatly appreciated.  If you want to support the list -
>> use PayPal to send contribution --   https://www.paypal.me/stumurray
>>
>> ___
>>
>> Thanks everyone for supporting this list with your contributions.  Each
>> and every one is greatly appreciated.  If you want to support the list -
>> use PayPal to send contribution --   https://www.paypal.me/stumurray
>>
>> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>

-- 
Joel
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Re: Stus-List 37+ Cruise Speed

[Ken Heaton via CnC-List]

Some people have had success putting something strong and inflatable under
the engine to raise it, something like this:
https://www.youtube.com/watch?v=PL1ST_gZbt4

Ken H.

On Fri, 28 Aug 2020 at 10:32, John Conklin via CnC-List <
cnc-list@cnc-list.com> wrote:

> David,
> I believe my vibration is also due to original Motor Mounts as well on my
> 1983 - 37. Any other tips on the replacing? I asked a mechanic and he said
> they needed a special tool to raise the engine? Also No idea how I am
> getting to back ones with out removing fuel tank Which is nice new plastic
> type but placed in starboard lazzarette  making  all entry to aft section
> rudder and motor Difficult
> Thanks!
>
> John Conklin
> S/V Halcyon
> S/V Heartbeat
> www.flirtingwithfire.com
>
>
> On Aug 24, 2020, at 12:45 PM, David Risch via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> 
> Chuck...replaced my motor mounts my self.   Not that hard.   Unless that V
> drive makes it that hard.
>
> Sent from my Android. Please forgive typos. Thank you.
>
> --
> *From:* CnC-List  on behalf of Chuck
> Gilchrest via CnC-List 
> *Sent:* Monday, August 24, 2020 12:40:45 PM
> *To:* cnc-list@cnc-list.com 
> *Cc:* Chuck Gilchrest 
> *Subject:* Re: Stus-List 37+ Cruise Speed
>
>
> Peter,
>
> My 1983 LF 35 came with a Yanmar 3HM with a 3 blade fixed prop.  It’s
> happiest around 2200 RPM at roughly 6 knots.  Anything more than that it
> sounds like the hull is shaking apart. Not a lot of sound deadening in
> general with that diesel, but it gets pretty loud at higher RPMs. Since I
> replaced the shaft, cutlass bearing, installed a dripless shaft seal when
> purchased 4 years ago, vibration is likely motor mounts which are probably
> original.
>
> Someday…
>
> Chuck Gilchrest
>
> Half Magic
>
> 1983 35 Landfall
>
> Padanaram, MA
>
> *From:* CnC-List  *On Behalf Of *Peter
> Cowenhoven via CnC-List
> *Sent:* Monday, August 24, 2020 10:18 AM
> *To:* cnc-list@cnc-list.com
> *Cc:* Peter Cowenhoven 
> *Subject:* Re: Stus-List 37+ Cruise Speed
>
>
>
> I've got a Westerbeke 33 with a 2 blade folding prop.
>
>
>
> I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.
>
> Sent from Yahoo Mail on Android
> <https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>
>
>
>
> On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List
>
>  wrote:
>
> Hi
>
> What is everyone’s motor/ rpm optimal motoring speed?
>
>
>
> Thanks
>
> Rob
>
>
>
>
>
>
>
> Sent from my iPhone
>
> ___
>
>
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --  https://www.paypal.me/stumurray
>
>
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List 37+ Cruise Speed

[Chris Riedinger via CnC-List]

Motor mounts could be replaced with carefully located wood blocks and a
porta-power or bottle/scissor jack... Or maybe get some fine-pitch
allthread and make yourself a jack of sorts

You would have to re-align shaft/coupler.

I would recommend looking at your mounts to see if you can move at all, or
if they are maxxed out. You can loosen the coupler bolts, crack the
couplers away from each other just a bit, and find out which way your
engine needs to go. Say you find .006" gap on stbd and .012 on Port, .000
on lower, and .006" on upper, motor needs to come up some on the front
mounts, and go a bit to port. So you move your mounts (symmetrical side to
side, so make sure you are going up straight and not twisting) up a few
turns on the front mounts (I like to paint or marker one side of the hex
nut so I can easily count turns). Check your alignment. Then the real fun
begins. Hopefully your mounts have some small side-to side adjustment
allowable (maybe the mounting holes are just slightly oblong or have a
milled slot). Loosen one side's mount at a time and 'nudge' the motor a
little bit, tighten the mounts back down. Check your alignment again.

Hopefully this explains some of the reason why getting an engine replaced
is so expensive. This is very time consuming work, often performed in the
worst possible access areas of a boat.




Chris Riedinger
(860)302-9608
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Re: Stus-List 37+ Cruise Speed

[John Conklin via CnC-List]

David,
I believe my vibration is also due to original Motor Mounts as well on my 1983 
- 37. Any other tips on the replacing? I asked a mechanic and he said they 
needed a special tool to raise the engine? Also No idea how I am getting to 
back ones with out removing fuel tank Which is nice new plastic type but placed 
in starboard lazzarette  making  all entry to aft section rudder and motor 
Difficult
Thanks!

John Conklin
S/V Halcyon
S/V Heartbeat
www.flirtingwithfire.com


On Aug 24, 2020, at 12:45 PM, David Risch via CnC-List  
wrote:


Chuck...replaced my motor mounts my self.   Not that hard.   Unless that V 
drive makes it that hard.

Sent from my Android. Please forgive typos. Thank you.


From: CnC-List  on behalf of Chuck Gilchrest via 
CnC-List 
Sent: Monday, August 24, 2020 12:40:45 PM
To: cnc-list@cnc-list.com 
Cc: Chuck Gilchrest 
Subject: Re: Stus-List 37+ Cruise Speed


Peter,

My 1983 LF 35 came with a Yanmar 3HM with a 3 blade fixed prop.  It’s happiest 
around 2200 RPM at roughly 6 knots.  Anything more than that it sounds like the 
hull is shaking apart. Not a lot of sound deadening in general with that 
diesel, but it gets pretty loud at higher RPMs. Since I replaced the shaft, 
cutlass bearing, installed a dripless shaft seal when purchased 4 years ago, 
vibration is likely motor mounts which are probably original.

Someday…

Chuck Gilchrest

Half Magic

1983 35 Landfall

Padanaram, MA

From: CnC-List  On Behalf Of Peter Cowenhoven 
via CnC-List
Sent: Monday, August 24, 2020 10:18 AM
To: cnc-list@cnc-list.com
Cc: Peter Cowenhoven 
Subject: Re: Stus-List 37+ Cruise Speed



I've got a Westerbeke 33 with a 2 blade folding prop.



I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.

Sent from Yahoo Mail on 
Android<https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>



On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List

mailto:cnc-list@cnc-list.com>> wrote:

Hi

What is everyone’s motor/ rpm optimal motoring speed?



Thanks

Rob







Sent from my iPhone

___



Thanks everyone for supporting this list with your contributions.  Each and 
every one is greatly appreciated.  If you want to support the list - use PayPal 
to send contribution --  https://www.paypal.me/stumurray



___

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every one is greatly appreciated.  If you want to support the list - use PayPal 
to send contribution --   https://www.paypal.me/stumurray

___

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every one is greatly appreciated.  If you want to support the list - use PayPal 
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Re: Stus-List 37+ Cruise Speed

[Chris Riedinger via CnC-List]

We do about 7 with a 3 blade maxprop and a yanmar 3gm, our bottom gets
wiped every few months but we try to take it out often enough that the
ablative does it's job. Diver never complains about hard growth.

Any of you have propspeed or barnacle barrier applied to prop or shaft?
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Re: Stus-List 37+ Cruise Speed

[John Irvin via CnC-List]

Don’t forget the Marvel Mystery Oil!

Sent from my iPhone

On Aug 24, 2020, at 4:57 PM, Paul Wyand via CnC-List  
wrote:


Yes the atomic 4 is rated at 30 HP but no one uses it near its HP peak level of 
RPM. So most people in sailboats use about 18-20 HP of the usable 30. Some of 
the older power boats may have revved that engine up to the HP peak level. I 
don't think I ever pushed mine over about 2200 rpm so that was around 18 HP to 
move my C 33. Great engines, last a LONG time. But they are all getting long 
in the tooth now.

On Mon, Aug 24, 2020 at 3:53 PM Rick Brass via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
I believe the difference is between rated HP and shaft HP, which is generally 
lower after things like transmission loss, accessory loads, and friction.

IIRC, an A4 was rated as 30HP, but the shaft HP was something like 17or 18. 
Which is why an2 cylinder Yanmar is a suitable replacement foe an A4.

Rick Brass
Washington, NC


From: CnC-List 
[mailto:cnc-list-boun...@cnc-list.com<mailto:cnc-list-boun...@cnc-list.com>] On 
Behalf Of Joe Della Barba via CnC-List
Sent: Monday, August 24, 2020 2:15 PM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: Joe Della Barba mailto:j...@dellabarba.com>>
Subject: Re: Stus-List 37+ Cruise Speed


What the heck is a 13hp Atomic 4? Mine is 30 HP.

Joe

Coquina
On 8/24/2020 1:26 PM, Daniel A. Willis via CnC-List wrote:
My 1973 30' Mk 1 had a 13hp atomic four but was re-engine 12 years ago with a 
20 hp Universal. She stops on a dime and handles very well with all that power. 
I suspect some might simply have been re-powered over the years as our Santiago 
was.



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Re: Stus-List 37+ Cruise Speed

[Paul Wyand via CnC-List]

Yes the atomic 4 is rated at 30 HP but no one uses it near its HP peak
level of RPM. So most people in sailboats use about 18-20 HP of the usable
30. Some of the older power boats may have revved that engine up to the HP
peak level. I don't think I ever pushed mine over about 2200 rpm so that
was around 18 HP to move my C 33. Great engines, last a LONG time. But
they are all getting long in the tooth now.

On Mon, Aug 24, 2020 at 3:53 PM Rick Brass via CnC-List <
cnc-list@cnc-list.com> wrote:

> I believe the difference is between rated HP and shaft HP, which is
> generally lower after things like transmission loss, accessory loads, and
> friction.
>
>
>
> IIRC, an A4 was rated as 30HP, but the shaft HP was something like 17or
> 18. Which is why an2 cylinder Yanmar is a suitable replacement foe an A4.
>
>
>
> Rick Brass
>
> Washington, NC
>
>
>
>
>
> *From:* CnC-List [mailto:cnc-list-boun...@cnc-list.com] *On Behalf Of *Joe
> Della Barba via CnC-List
> *Sent:* Monday, August 24, 2020 2:15 PM
> *To:* cnc-list@cnc-list.com
> *Cc:* Joe Della Barba 
> *Subject:* Re: Stus-List 37+ Cruise Speed
>
>
>
> What the heck is a 13hp Atomic 4? Mine is 30 HP.
>
> Joe
>
> Coquina
>
> On 8/24/2020 1:26 PM, Daniel A. Willis via CnC-List wrote:
>
> My 1973 30' Mk 1 had a 13hp atomic four but was re-engine 12 years ago
> with a 20 hp Universal. She stops on a dime and handles very well with all
> that power. I suspect some might simply have been re-powered over the years
> as our Santiago was.
>
>
> --
>
>
>
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List 37+ Cruise Speed

[Della Barba, Joe via CnC-List]

Losses might be 5 or 10 percent, but I never heard of almost 2/3s!
There is the prop issue and gearing though, that 30 HP is at 3600 RPM. The only 
A4s that can do that are in planing boats or have the 2:1 reduction gear. 
Absent the gear you are probably at 22-24 HP at best and many A4s came severely 
overpropped and can't get past maybe 1400 RPM. This is really nice on a calm 
day, you hit hullspeed just off idle, but any headwinds will about stop the 
boat.


Joe Della Barba Coquina C 35  MK I
www.dellabarba.com



From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Rick Brass 
via CnC-List
Sent: Monday, August 24, 2020 3:53 PM
To: cnc-list@cnc-list.com
Cc: Rick Brass 
Subject: [EXTERNAL] Re: Stus-List 37+ Cruise Speed

I believe the difference is between rated HP and shaft HP, which is generally 
lower after things like transmission loss, accessory loads, and friction.

IIRC, an A4 was rated as 30HP, but the shaft HP was something like 17or 18. 
Which is why an2 cylinder Yanmar is a suitable replacement foe an A4.

Rick Brass
Washington, NC


From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Joe Della 
Barba via CnC-List
Sent: Monday, August 24, 2020 2:15 PM
To: cnc-list@cnc-list.com<mailto:cnc-list@cnc-list.com>
Cc: Joe Della Barba mailto:j...@dellabarba.com>>
Subject: Re: Stus-List 37+ Cruise Speed


What the heck is a 13hp Atomic 4? Mine is 30 HP.

Joe

Coquina
On 8/24/2020 1:26 PM, Daniel A. Willis via CnC-List wrote:
My 1973 30' Mk 1 had a 13hp atomic four but was re-engine 12 years ago with a 
20 hp Universal. She stops on a dime and handles very well with all that power. 
I suspect some might simply have been re-powered over the years as our Santiago 
was.



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Re: Stus-List 37+ Cruise Speed

[Rick Brass via CnC-List]

I believe the difference is between rated HP and shaft HP, which is
generally lower after things like transmission loss, accessory loads, and
friction.

 

IIRC, an A4 was rated as 30HP, but the shaft HP was something like 17or 18.
Which is why an2 cylinder Yanmar is a suitable replacement foe an A4.

 

Rick Brass

Washington, NC

 

 

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Joe Della
Barba via CnC-List
Sent: Monday, August 24, 2020 2:15 PM
To: cnc-list@cnc-list.com
Cc: Joe Della Barba 
Subject: Re: Stus-List 37+ Cruise Speed

 

What the heck is a 13hp Atomic 4? Mine is 30 HP.

Joe

Coquina

On 8/24/2020 1:26 PM, Daniel A. Willis via CnC-List wrote:

My 1973 30' Mk 1 had a 13hp atomic four but was re-engine 12 years ago with
a 20 hp Universal. She stops on a dime and handles very well with all that
power. I suspect some might simply have been re-powered over the years as
our Santiago was. 

 

  _  

 

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Re: Stus-List 37+ Cruise Speed

[Joe Della Barba via CnC-List]

What the heck is a 13hp Atomic 4? Mine is 30 HP.

Joe

Coquina

On 8/24/2020 1:26 PM, Daniel A. Willis via CnC-List wrote:
My 1973 30' Mk 1 had a 13hp atomic four but was re-engine 12 years ago 
with a 20 hp Universal. She stops on a dime and handles very well with 
all that power. I suspect some might simply have been re-powered over 
the years as our Santiago was.




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Re: Stus-List 37+ Cruise Speed

[Daniel A. Willis via CnC-List]

My 1973 30' Mk 1 had a 13hp atomic four but was re-engine 12 years ago with a 
20 hp Universal. She stops on a dime and handles very well with all that power. 
I suspect some might simply have been re-powered over the years as our Santiago 
was.


From: CnC-List  on behalf of Peter Cowenhoven 
via CnC-List 
Sent: August 24, 2020 11:17 AM
To: cnc-list@cnc-list.com 
Cc: Peter Cowenhoven 
Subject: Re: Stus-List 37+ Cruise Speed

I've got a Westerbeke 33 with a 2 blade folding prop.

I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.

Sent from Yahoo Mail on 
Android<https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>

On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List
 wrote:
Hi
What is everyone’s motor/ rpm optimal motoring speed?

Thanks
Rob



Sent from my iPhone
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Re: Stus-List 37+ Cruise Speed

[Edd Schillay via CnC-List]

I have a 2015 Beta 30 in my C 37+. At 2600 RPMs, we’ll reach Warp 7.2 (7.2 
knots). More RPMs won’t make much of a difference.

All the best,

Edd


Edd M. Schillay
Captain of the Starship Enterprise
C 37+ | Sail No: NCC-1701-B
Venice Yacht Club | Venice Island, FL

Starship Enterprise's Captain's Log <http://enterpriseb.blogspot.com/>











On Aug 24, 2020, at 1:17 PM, Tom Buscaglia via CnC-List  
wrote:

Yanmar 3HM35 here.  We cruise at 7.3 or so @ 2600 RPM with a clean bottom and 
prop.  If the prop and bottom are all crudded up,.6.5 and she overheats...

Tom B

At 09:00 AM 8/24/2020, you wrote:

> Message: 4
> Date: Mon, 24 Aug 2020 14:17:42 + (UTC)
> From: Peter Cowenhoven 
> To: 
> Subject: Re: Stus-List 37+ Cruise Speed
> Message-ID: <280064651.4912093.1598278662...@mail.yahoo.com>
> Content-Type: text/plain; charset="utf-8"
> 
> I've got a Westerbeke 33 with a 2 blade folding prop.
> I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.
> 
> Sent from Yahoo Mail on Android 
>  
>   On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via 
> CnC-List wrote:   Hi
> What is everyone?s motor/ rpm optimal motoring speed?? 
> 
> Thanks
> Rob
> 


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Stus-List 37+ Cruise Speed

[Tom Buscaglia via CnC-List]

Yanmar 3HM35 here.  We cruise at 7.3 or so @ 2600 
RPM with a clean bottom and prop.  If the prop 
and bottom are all crudded up,.6.5 and she overheats...


Tom B

At 09:00 AM 8/24/2020, you wrote:


Message: 4
Date: Mon, 24 Aug 2020 14:17:42 + (UTC)
From: Peter Cowenhoven 
To: 
Subject: Re: Stus-List 37+ Cruise Speed
Message-ID: <280064651.4912093.1598278662...@mail.yahoo.com>
Content-Type: text/plain; charset="utf-8"

I've got a Westerbeke 33 with a 2 blade folding prop.
I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.

Sent from Yahoo Mail on Android

  On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin 
via CnC-List wrote:   Hi

What is everyone?s motor/ rpm optimal motoring speed??

Thanks
Rob



.¤º°`°º¤,¸¸,¤º°`°º¤¤º°`°º¤,¸¸,¤º°`°º¤.
Tom & Lynn Buscaglia
SV Alera
C 37+/40
Vashon Island WA
(206) 463-9200
www.sv-alera.com


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Re: Stus-List 37+ Cruise Speed

[Della Barba, Joe via CnC-List]

See 
http://www.moyermarineforum.com/forums/showthread.php?t=11491=barnacles

From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Della Barba, 
Joe via CnC-List
Sent: Monday, August 24, 2020 12:51 PM
To: cnc-list@cnc-list.com
Cc: Della Barba, Joe 
Subject: [EXTERNAL] Re: Stus-List 37+ Cruise Speed

I do about 6 knots at around 2100-2200 RPM and 5 inches manifold in calm water 
with a clean bottom. I can push up to maybe 6.5-6.8 at full throttle, but the 
large noise increase is not worth it. My A4 is direct drive with a smallish 
prop, so adverse wind and seas really knock that speed down. Also towing the 
big RIB is a drag - literally.


Joe Della Barba Coquina C 35  MK I
www.dellabarba.com<http://www.dellabarba.com>



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Re: Stus-List 37+ Cruise Speed

[Della Barba, Joe via CnC-List]

I do about 6 knots at around 2100-2200 RPM and 5 inches manifold in calm water 
with a clean bottom. I can push up to maybe 6.5-6.8 at full throttle, but the 
large noise increase is not worth it. My A4 is direct drive with a smallish 
prop, so adverse wind and seas really knock that speed down. Also towing the 
big RIB is a drag - literally.


Joe Della Barba Coquina C 35  MK I
www.dellabarba.com



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Re: Stus-List 37+ Cruise Speed

[David Risch via CnC-List]

Chuck...replaced my motor mounts my self.   Not that hard.   Unless that V 
drive makes it that hard.

Sent from my Android. Please forgive typos. Thank you.


From: CnC-List  on behalf of Chuck Gilchrest via 
CnC-List 
Sent: Monday, August 24, 2020 12:40:45 PM
To: cnc-list@cnc-list.com 
Cc: Chuck Gilchrest 
Subject: Re: Stus-List 37+ Cruise Speed


Peter,

My 1983 LF 35 came with a Yanmar 3HM with a 3 blade fixed prop.  It’s happiest 
around 2200 RPM at roughly 6 knots.  Anything more than that it sounds like the 
hull is shaking apart. Not a lot of sound deadening in general with that 
diesel, but it gets pretty loud at higher RPMs. Since I replaced the shaft, 
cutlass bearing, installed a dripless shaft seal when purchased 4 years ago, 
vibration is likely motor mounts which are probably original.

Someday…

Chuck Gilchrest

Half Magic

1983 35 Landfall

Padanaram, MA

From: CnC-List  On Behalf Of Peter Cowenhoven 
via CnC-List
Sent: Monday, August 24, 2020 10:18 AM
To: cnc-list@cnc-list.com
Cc: Peter Cowenhoven 
Subject: Re: Stus-List 37+ Cruise Speed



I've got a Westerbeke 33 with a 2 blade folding prop.



I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.

Sent from Yahoo Mail on 
Android<https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>



On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List

mailto:cnc-list@cnc-list.com>> wrote:

Hi

What is everyone’s motor/ rpm optimal motoring speed?



Thanks

Rob







Sent from my iPhone

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Re: Stus-List 37+ Cruise Speed

[Chuck Gilchrest via CnC-List]

Peter, 

My 1983 LF 35 came with a Yanmar 3HM with a 3 blade fixed prop.  It’s happiest 
around 2200 RPM at roughly 6 knots.  Anything more than that it sounds like the 
hull is shaking apart. Not a lot of sound deadening in general with that 
diesel, but it gets pretty loud at higher RPMs. Since I replaced the shaft, 
cutlass bearing, installed a dripless shaft seal when purchased 4 years ago, 
vibration is likely motor mounts which are probably original.

Someday…

Chuck Gilchrest

Half Magic

1983 35 Landfall

Padanaram, MA

From: CnC-List  On Behalf Of Peter Cowenhoven 
via CnC-List
Sent: Monday, August 24, 2020 10:18 AM
To: cnc-list@cnc-list.com
Cc: Peter Cowenhoven 
Subject: Re: Stus-List 37+ Cruise Speed

 

I've got a Westerbeke 33 with a 2 blade folding prop.

 

I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.

Sent from Yahoo Mail on Android 
<https://go.onelink.me/107872968?pid=InProduct=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers_wl=ym_sub1=Internal_sub2=Global_YGrowth_sub3=EmailSignature>
 

 

On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via CnC-List

mailto:cnc-list@cnc-list.com> > wrote:

Hi

What is everyone’s motor/ rpm optimal motoring speed?  

 

Thanks

Rob

 

 

 

Sent from my iPhone

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Re: Stus-List 37+ Cruise Speed

[Peter Cowenhoven via CnC-List]

I've got a Westerbeke 33 with a 2 blade folding prop.
I would say I do 7 knots at about 2700 -2800 rpm pretty consistently.

Sent from Yahoo Mail on Android 
 
  On Tue, Jun 23, 2020 at 12:53 PM, Rob Hamlin via 
CnC-List wrote:   Hi
What is everyone’s motor/ rpm optimal motoring speed?  

Thanks
Rob



Sent from my iPhone
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Re: Stus-List 37+ Cruise Speed

[Tim Rutherford via CnC-List]

Yanmar 3HM, 2.14:1 ratio, Eliptec 17x10 2-blade folding

Tracked 12 hours of runtime one weekend last year coming part way back to
Tampa from Fort Myers.

She made 6.36 knots at about 2500 RPM and uses about 0.91 gallons/hour in
calm seas. Throttle seems to be about 2/3. Throttle up till she smokes then
back down a fair amount to set rate.

--
Tim Rutherford
1981 C 36-1 KCB #244 Chamamé
tim.rutherford.m...@gmail.com
Tampa, Florida

On Tue, Jun 23, 2020, 12:53 Rob Hamlin via CnC-List 
wrote:

> Hi
> What is everyone’s motor/ rpm optimal motoring speed?
>
> Thanks
> Rob
>
>
>
> Sent from my iPhone
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List 37+ Cruise Speed

[bwhitmore via CnC-List]

What is your pitch and diameter on your FlexoFold, what can you get at 2800 
RPM, and what is the shaft size?  I am likely going down that road in the next 
few week, and if you have the 37+, want to make sure I have real life 
examples.ThanksBruce Whitmore Sent from Samsung tablet.
 Original message From: Rob Hamlin via CnC-List 
 Date: 6/23/20  7:57 PM  (GMT-05:00) To: 
cnc-list@cnc-list.com Cc: Rob Hamlin  Subject: Re: 
Stus-List 37+ Cruise Speed Thanks everyone, I was maintaining around 6.5 knts 
at 2,200 with a 3HM and 3 blade folding flexafold. Sent from my iPhoneOn Jun 
23, 2020, at 4:17 PM, Ken Heaton via CnC-List  
wrote:C 37/40 XL, loaded for cruising, fuel & water tanks full:Non standard 
engine, a Yanmar 3JH2-TBE (turbo, 47 hp)Transmission 2.64 : 1 reduction 
ratioPropeller Size:  18” - 3 blade   featheringThe following assumes no 
head wind to speak of, and fairly calm water:3200 RPM, 7.0 kts3400 RPM 7.1 
ktsWide open - 3800 to 3900 RPM 8.0 kts, lots more fuel being burnt.Say 10 to 
15 knots on the nose and some waves: 3200 RPM 6.0 to 6.4 kts.On Tue, 23 Jun 
2020 at 13:53, Rob Hamlin via CnC-List  wrote:Hi
What is everyone’s motor/ rpm optimal motoring speed?  

Thanks
Rob



Sent from my iPhone
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-- Ken Heaton & Anne TobinS/V Salazar - Can 54955C 37/40 XL - Hull # 67Cape 
Breton Island, Nova ScotiaC 37/40 XL Salazar  -- "Nice? It's the only thing," 
said the Water Rat Solemnly, as he leaned forward for his stroke. "Believe me, 
my young friend, there is nothing -- absolutely nothing -- half so much worth 
doing as simply messing about in boats.""Simply messing...about in boats -- or 
with boats... In or out of 'em it doesn't matter. Nothing seems to matter, 
that's the charm of it. Whether you get away, or whether you don't; whether you 
arrive at your destination or whether you reach somewhere else, or whether you 
never get anywhere at all, you're always busy, and you never do anything in 
particular; and when you've done it there's always something else to do, and 
you can do it if you like, but you'd much better not."
___Thanks everyone for supporting 
this list with your contributions.  Each and every one is greatly appreciated.  
If you want to support the list - use PayPal to send contribution --   
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Re: Stus-List 37+ Cruise Speed

[Rob Hamlin via CnC-List]

Thanks everyone, I was maintaining around 6.5 knts at 2,200 with a 3HM and 3 
blade folding flexafold. 

Sent from my iPhone

> On Jun 23, 2020, at 4:17 PM, Ken Heaton via CnC-List  
> wrote:
> 
> 
> C 37/40 XL, loaded for cruising, fuel & water tanks full:
> Non standard engine, a Yanmar 3JH2-TBE (turbo, 47 hp)
> Transmission 2.64 : 1 reduction ratio
> Propeller Size:  18” - 3 blade feathering
> 
> The following assumes no head wind to speak of, and fairly calm water:
> 3200 RPM, 7.0 kts
> 3400 RPM 7.1 kts
> Wide open - 3800 to 3900 RPM 8.0 kts, lots more fuel being burnt.
> 
> Say 10 to 15 knots on the nose and some waves: 3200 RPM 6.0 to 6.4 kts.
> 
> 
> 
>> On Tue, 23 Jun 2020 at 13:53, Rob Hamlin via CnC-List 
>>  wrote:
>> Hi
>> What is everyone’s motor/ rpm optimal motoring speed?  
>> 
>> Thanks
>> Rob
>> 
>> 
>> 
>> Sent from my iPhone
>> ___
>> 
>> Thanks everyone for supporting this list with your contributions.  Each and 
>> every one is greatly appreciated.  If you want to support the list - use 
>> PayPal to send contribution --   https://www.paypal.me/stumurray
>> 
> 
> 
> -- 
> Ken Heaton & Anne Tobin
> 
> S/V Salazar - Can 54955
> C 37/40 XL - Hull # 67
> Cape Breton Island, Nova Scotia
> C 37/40 XL Salazar  
> -- 
> "Nice? It's the only thing," said the Water Rat Solemnly, as he leaned 
> forward for his stroke. "Believe me, my young friend, there is nothing -- 
> absolutely nothing -- half so much worth doing as simply messing about in 
> boats."
> 
> "Simply messing...about in boats -- or with boats... In or out of 'em it 
> doesn't matter. Nothing seems to matter, that's the charm of it. Whether you 
> get away, or whether you don't; whether you arrive at your destination or 
> whether you reach somewhere else, or whether you never get anywhere at all, 
> you're always busy, and you never do anything in particular; and when you've 
> done it there's always something else to do, and you can do it if you like, 
> but you'd much better not."
> 
> 
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> 
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> every one is greatly appreciated.  If you want to support the list - use 
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Re: Stus-List 37+ Cruise Speed

[Ken Heaton via CnC-List]

C 37/40 XL, loaded for cruising, fuel & water tanks full:
Non standard engine, a Yanmar 3JH2-TBE (turbo, 47 hp)
Transmission 2.64 : 1 reduction ratio
Propeller Size:  18” - 3 blade feathering

The following assumes no head wind to speak of, and fairly calm water:
3200 RPM, 7.0 kts
3400 RPM 7.1 kts
Wide open - 3800 to 3900 RPM 8.0 kts, lots more fuel being burnt.

Say 10 to 15 knots on the nose and some waves: 3200 RPM 6.0 to 6.4 kts.



On Tue, 23 Jun 2020 at 13:53, Rob Hamlin via CnC-List 
wrote:

> Hi
> What is everyone’s motor/ rpm optimal motoring speed?
>
> Thanks
> Rob
>
>
>
> Sent from my iPhone
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>

-- 

Ken Heaton & Anne Tobin

S/V Salazar - Can 54955

C 37/40 XL - Hull # 67
Cape Breton Island, Nova Scotia
C 37/40 XL Salazar 
-- 
"Nice? It's the only thing," said the Water Rat Solemnly, as he leaned
forward for his stroke. "Believe me, my young friend, there is nothing --
absolutely nothing -- half so much worth doing as simply messing about in
boats."

"Simply messing...about in boats -- or with boats... In or out of 'em it
doesn't matter. Nothing seems to matter, that's the charm of it. Whether
you get away, or whether you don't; whether you arrive at your destination
or whether you reach somewhere else, or whether you never get anywhere at
all, you're always busy, and you never do anything in particular; and when
you've done it there's always something else to do, and you can do it if
you like, but you'd much better not."
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Stus-List 37+ cruise speed

[Len Mitchell via CnC-List]

I run at 2200 rpms and get 6.5 knots. That’s where she is smooth but working a 
little. It feels like the sweet spot. She will get 7+ if I add throttle but 
vibrates more and makes more noise. Every 37+ could be a little different 
depending on drive train. Universal M35 and a 2 blade max prop at 22 degrees 
here with a slippery VC17 bottom and zero barnacles in fresh water. 
Len Mitchell
Crazy Legs 
1989 37+
Midland On. 

Sent from my mobile device. 
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Stus-List 37+ Cruise Speed

[Tom Buscaglia via CnC-List]

With a clean bottom, 7.5 @ ~2800 RPM.  SOG varies. ;)

At 10:23 AM 6/23/2020, you wrote:


Message: 2
Date: Tue, 23 Jun 2020 12:52:33 -0400
From: Rob Hamlin 
To: cnc-list@cnc-list.com
Subject: Stus-List 37+ Cruise Speed
Message-ID: <41fc3106-a627-4eee-bcab-6b8f5861b...@gmail.com>
Content-Type: text/plain; charset=utf-8

Hi
What is everyone?s motor/ rpm optimal motoring speed?

Thanks
Rob



Sent from my iPhone


.¤º°`°º¤,¸¸,¤º°`°º¤¤º°`°º¤,¸¸,¤º°`°º¤.
Tom & Lynn Buscaglia
SV Alera
C 37+/40
Vashon Island WA
(206) 463-9200
www.sv-alera.com


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Re: Stus-List 37+ Cruise Speed

[Dennis C. via CnC-List]

C 35-1 with Universal 25XPB and 14 x 14 Martec 2 blade folder - ~6.4
knots at 2450 rpm (80% max) and about 0.7 gph fuel consumption.  Suspect
prop is slightly under pitched.
  --
Dennis C.
Touche' 35-1 #83
Mandeville, LA

On Tue, Jun 23, 2020 at 11:53 AM Rob Hamlin via CnC-List <
cnc-list@cnc-list.com> wrote:

> Hi
> What is everyone’s motor/ rpm optimal motoring speed?
>
> Thanks
> Rob
>
>
>
> Sent from my iPhone
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>
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Re: Stus-List 37+ Cruise Speed

[Ronald B. Frerker via CnC-List]

 I believe the recommendation is to cruise at 80% of max rpm. For my Universal 
3cyl that's a cruising rpm of about 2500.
Ron
Wild Cheri
C 30-1
STL



Hi
What is everyone’s motor/ rpm optimal motoring speed? 

Thanks
Rob



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Re: Stus-List 37+ Cruise Speed

[Charlie Nelson via CnC-List]

Probably as many opinions on cruise speed as on best anchors, etc. Plus like 
many simple questions, the answer: ‘It’s Complicated’ (also a local power boat 
name!).
I faced this issue years ago when I decided to go to a 2 blade folding Gori 
racing prop from my former 3 blade feathering prop. IIRC, it started with the 
space I had for the prop to spin with minimal interference/maximum clearance 
from the hull. This set the prop diameter and my waterline length along with 
engine/transmission optimal rpm set the prop pitch to reach hull speed in flat 
water.
In my case, it required a different transmission than the original that came 
with my Beta 28 and which worked fine with my Max-Prop. 
Anyhow my Beta has ~ maximum power at 3200 rpm with 3600 as redline and most 
diesels like to be run and are designed to run near max rpm for various reasons.
Thus with guidance from Geoff at AB Marine and these parameters, I got the new 
prop and transmission and now cruise in flat water at ~7.2-7.4 knots with 3200 
rpm.
This was also my cruising speed before I made the changes but again the prop, 
transmission and engine were ‘matched’ (mostly by Max-Prop blade diameter and 
it’s adjustable pitch) to have the engine do 3000-3200 rpm and the boat get to 
hull speed (+\-) at that rpm in flat water.
YMMV but this is my story and I’m sticking to it!
Charlie Nelson1995 C 36 XL/kcbWater Phantom

Sent from AOL Mobile Mail
Get the new AOL app: mail.mobile.aol.com
 On Tuesday, June 23, 2020, Matt Wolford via CnC-List  
wrote:

#yiv1292176394 #yiv1292176394 -- _filtered {} _filtered {}#yiv1292176394 
#yiv1292176394 p.yiv1292176394MsoNormal, #yiv1292176394 
li.yiv1292176394MsoNormal, #yiv1292176394 div.yiv1292176394MsoNormal 
{margin:0in;margin-bottom:.0001pt;font-size:11.0pt;font-family:sans-serif;}#yiv1292176394
 a:link, #yiv1292176394 span.yiv1292176394MsoHyperlink 
{color:blue;text-decoration:underline;}#yiv1292176394 
span.yiv1292176394EmailStyle18 
{font-family:sans-serif;color:windowtext;}#yiv1292176394 
.yiv1292176394MsoChpDefault {font-family:sans-serif;} _filtered 
{}#yiv1292176394 div.yiv1292176394WordSection1 {}#yiv1292176394 
My decades-old Westerbeke 40 is happy at 2000 RPM, maybe slightly more, which 
produces a solid 6.5 knots in good weather. 

  

On Tue, Jun 23, 2020 at 9:53 AM Rob Hamlin via CnC-List  
wrote:


Hi
What is everyone’s motor/ rpm optimal motoring speed?  

Thanks
Rob



Sent from my iPhone
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Re: Stus-List 37+ Cruise Speed

[Matt Wolford via CnC-List]

My decades-old Westerbeke 40 is happy at 2000 RPM, maybe slightly more, which 
produces a solid 6.5 knots in good weather. 

 

On Tue, Jun 23, 2020 at 9:53 AM Rob Hamlin via CnC-List mailto:cnc-list@cnc-list.com> > wrote:

Hi
What is everyone’s motor/ rpm optimal motoring speed?  

Thanks
Rob



Sent from my iPhone
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Re: Stus-List 37+ Cruise Speed

[Doug Mountjoy via CnC-List]

I motor at 2500 for 6.5-6.9kts. I can go faster but why burn the fuel.
Doug

On Tue, Jun 23, 2020 at 9:53 AM Rob Hamlin via CnC-List <
cnc-list@cnc-list.com> wrote:

> Hi
> What is everyone’s motor/ rpm optimal motoring speed?
>
> Thanks
> Rob
>
>
>
> Sent from my iPhone
> ___
>
> Thanks everyone for supporting this list with your contributions.  Each
> and every one is greatly appreciated.  If you want to support the list -
> use PayPal to send contribution --   https://www.paypal.me/stumurray
>
>

-- 
Douglas Mountjoy
253-208-1412
Port Orchard YC, WA
Rebecca Leah
C LandFall 39
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Re: Stus-List 37+ Cruise Speed

[Bruce Whitmore via CnC-List]

I'll second Edd's response, but we have a Yanmar 3JH@E with 36 hp, and won't 
get much faster at higher RPMs.  Maybe 7.4 kts.
I'm hoping for a bit more when I get the bottom done (which will be happening 
shortly)

Bruce Whitmore
1994 C 37/40+ "Astralis"
(847) 404-5092 (mobile)
bwhitm...@sbcglobal.net
 

  
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Re: Stus-List 37+ Cruise Speed

[Edd Schillay via CnC-List]

Rob,

At about 2800 RPMs in my Beta 30, I’ll get the Enterprise up to Warp 7.2 (7.2 
knots). If I increase the RPMs, she won’t go faster than that. 

All the best, 

Edd

———-
Edd M. Schillay
Captain of the “Starship Enterprise”
C 37+ | Sail No.: NCC-1701-B
Venice Yacht Club | Venice Island, FL
www.StarshipSailing.com
———-
914.774.9767   | Mobile
———-
Sent via iPhone 11 Pro
iPhone. iTypos. iApologize


On Jun 23, 2020, at 12:53 PM, Rob Hamlin via CnC-List  
wrote:

Hi
What is everyone’s motor/ rpm optimal motoring speed?  

Thanks
Rob



Sent from my iPhone
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Stus-List 37+ Cruise Speed

[Rob Hamlin via CnC-List]

Hi
What is everyone’s motor/ rpm optimal motoring speed?  

Thanks
Rob



Sent from my iPhone
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