Stus-List Wheel Drive Autopilot

[Della Barba, Joe via CnC-List]

I have an old AH-4000. If it starts doing what you describe the belt may be 
slipping or the pin that holds the drive gear is going. I have rebuilt my drive 
many times and my current unit is a combination of 3 or 4 old ones I have 
scavenged over the years.
You can try and fix it or get a new drive for around $600 or so. It will work 
fine with the AH-4000 computer. The CPT is a much stronger unit, but keep in 
mind in both cases the weight of the boat is being used as a proxy for how hard 
the boat is to steer. These things are really only loosely related at best. An 
AH-4000 has plenty more power than needed to steer a freighter, it isn’t 
physically hard to steer a big ship. The issue would be the steering algorithms 
would be way off.
If your boat is hard for YOU to steer, Otto will have a hard time too. After 
fixing or replacing your drive I would look to getting the boat to balance.
All that said, the AH-4000 is hopeless in a big following sea.

Joe
Coquina
C 35 MK I


From: Peter Cowenhoven via CnC-List 
Sent: Thursday, June 24, 2021 2:18 PM
To: Stus-List 
Cc: Peter Cowenhoven 
Subject: [EXTERNAL] Stus-List Wheel Drive Autopilot

Does anyone have any experience with the CPT belt driven vs the old Autohelm 
4000?  Does the CPT have more turning force?

I've got the old 4000 and many times it doesn't turn the wheel and just clicks. 
 Certainly when there's a lot weather helm there's no chance.

I'm also wondering if a new 4000 drive unit would be able to hold the force of 
the wheel better.

I see the 4000 or the new EV 1000 is rated st 16,500 and I'm at about 13,500 
while the CPT is rated to 40,000.

Thanks in advance for any intel or thoughts on this.

Best,

Peter

84 Landfall 35
Westbrook, CT

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Android
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Stus-List Wheel Drive Autopilot

[Peter Cowenhoven via CnC-List]

Does anyone have any experience with the CPT belt driven vs the old Autohelm 
4000?  Does the CPT have more turning force?
I've got the old 4000 and many times it doesn't turn the wheel and just clicks. 
 Certainly when there's a lot weather helm there's no chance.
I'm also wondering if a new 4000 drive unit would be able to hold the force of 
the wheel better.
I see the 4000 or the new EV 1000 is rated st 16,500 and I'm at about 13,500 
while the CPT is rated to 40,000.
Thanks in advance for any intel or thoughts on this.

Best,
Peter
84 Landfall 35Westbrook, CT

Sent from Yahoo Mail on AndroidThanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: Keel bolt torque with antisieze

[Bruno Lachance via CnC-List]

I think you are,

For the 1" bolts on my 33-2 I went with 250 ft lbs using tefgel, slow and 
steady. I had new and thicker backing plates made and used new waschers. 

Bruno Lachance 
Bécassine, 33-2
New-Richmond, Qc 

Envoyé de mon iPad

> Le 24 juin 2021 à 08:37, David Swensen via CnC-List  a 
> écrit :
> 
> I am finally about to rebed the keel on Freya (35MK3). The Torque table 
> indicates a value of 300 ft lbs for a 1" bolt. I have read a variation of 
> adjustments to that value if using antisieze "lubricant". I have Tufgel, so I 
> plan on using that. The values I have read regarding the torque for wet bolts 
>  vary from 56% to 80% of the dry torque. That results in a  range  of 
> anywhere from  228 to 280 ft lbs using wet bolts.
> 
> Am I on the right track with this? and if so, any comments on the "corrected" 
> wet bolt torques?
> 
> Thanks in advance
> 
> David Swensen
> Thanks to all of the subscribers that contributed to the list to help with 
> the costs involved.  If you want to show your support to the list - use 
> PayPal to send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Keel bolt torque with antisieze

[David Swensen via CnC-List]

I am finally about to rebed the keel on Freya (35MK3). The Torque table
indicates a value of 300 ft lbs for a 1" bolt. I have read a variation of
adjustments to that value if using antisieze "lubricant". I have Tufgel, so
I plan on using that. The values I have read regarding the torque for wet
bolts  vary from 56% to 80% of the dry torque. That results in a  range  of
anywhere from  228 to 280 ft lbs using wet bolts.

Am I on the right track with this? and if so, any comments on the
"corrected" wet bolt torques?

Thanks in advance

David Swensen
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu

Stus-List Re: 2'x8' sheet of smoke grey 3/16th plexi in MD

[Brian Morrison via CnC-List]

Hello Rocky,

Turns out my windows are bronze and the thickness is 3/8”. So, I would 
definitely like to get some of the extra plexiglass you have.

Brian C. Morrison

On Jun 22, 2021, at 10:50 AM, rockland bazemore via CnC-List 
 wrote:


hey write my normal gmail or text if you're interested because i don't always 
see these cnc lists
352-215-9888

On Tue, Jun 22, 2021 at 10:45 AM rockland bazemore 
mailto:rockybazem...@gmail.com>> wrote:
Hey Brian, I have a good amount of 3/8"  2412 color  bronze color and am 
acquiring a 1/4" 2370 dark bronze for portlights in a couple days. Let me know 
how much u need and I'll part with it for a what i paid price.

On Thu, Jun 17, 2021 at 3:16 PM Brian Morrison via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
I can be in the New York area (NYC) and am looking to replace the windows on my 
1979 C How much do you have?

Dr. Brian C. Morrison

On Jun 17, 2021, at 12:36 PM, rockland bazemore via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:


Thanks Al, I just confirmed my portlights are also 1/4”. If anyone in the New 
York area needs some 3/8” let me know!

On Thu, Jun 17, 2021 at 12:31 PM Alan Liles via CnC-List 
mailto:cnc-list@cnc-list.com>> wrote:
I replaced my fixed port lights two years ago. I used 1/4 “extruded plexiglas 
with VHB tape and Dow 795. The plexi had enough flex to accommodate the curve 
of the cabin and the VHB tape held it in place. The 795 was used to seal the 
gap. The installation was the easiest part of that job. The removal of the old 
plexi and the repairs to the damaged gel coat took the most time. The guy who 
cut my plexi was a bit of a butcher so I spent a day with a file smoothing out 
the chatter marks on the edges. In the end it looked great and, so far, no 
leaks.

Cheers, Al
SV Elendil
C 37/40+
Vancouver BC




Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu
Thanks to all of the subscribers that contributed to the list to help with the 
costs involved.  If you want to show your support to the list - use PayPal to 
send contribution --   https://www.paypal.me/stumurray  Thanks - Stu