I will see if I have any. I know I have a
couple wingmaxx.
I have the new digitals for sale and have the micro
maxx XP for flaps on Supras (or DS planes).
Tom
- Original Message -
From:
Marta Zavala
To: soaring@airage.com
Sent: Saturday, February 18, 2006 7:45
PM
see belowL
Simon Van Leeuwen wrote:
Comments inserted;
Lincoln Ross wrote:
snip
I wonder if anyone has tried using the tailboom for an antenna? How
about the wing spar for the ground, i.e. negative, power wire? For
reference, for another project I measured a carbon tow at 25ohms/ft.
Not
i used to play around with ground range checking,
moving my antenna to different locations and using different RX's,
and getting more then good results for what they called for as far
as how many steps you should be able to get with your antenna
collapsed on your TX.
Then i got a glitch/battery
This sale is to fund a new project. Some pics are available.
F3B airplanes for sale. This is an F3B team select year and these birds are
available for immediate sale as a complete package or I will consider breaking
into two packages only if both are sold at the same time.
Muller Ellipse
It has merit Tom. Although the epoxy matrix will sorta of insulate, the
wire would still have to be (electrically) insulated fromt he CF, one
could employ 28awg or smaller solid core motor lead which is used in
motor windings (very tough varnish).
The proper way to build it would be to look
Comments inserted;
Lincoln Ross wrote:
I wish I had a graphics program I actually knew, installed in this
computer. Oh well. The possibilities
Ahem, to be more relevant but perhaps still silly, I wonder if anyone
has tried using the tailboom for an antenna? How about the wing spar for
Selling a Thermal Dancer that I converted to an electric to make some room
for a new project. The Thermal Dancer is based on Mark Drela's Supra design
and sold through Polecat.
The plane have been setup for a Hacker B50 or B40 with the 6.7:1 gearbox.
With a B40/FAI motor and 10 2200 cells the
Tony, please ping me at [EMAIL PROTECTED] , I have some Graphite
questions.
Thanks
Chuck
RCSE-List facilities provided by Model Airplane News. Send subscribe and
unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe
messages must be sent in text only format
What is an adequate range check if you don't have a meter? For most of my
planes I get 100 to 150 ft with my Stylus antenna removed. I get way more
with my stock antenna on but retracted. I haven't walked far enough to
glitch with my Berg antenna just retracted. Also, if I have my plane on
Sorry I meant Becker antenna not Berg.
What is an adequate range check if you don't have a meter? For most of my
planes I get 100 to 150 ft with my Stylus antenna removed. I get way more
with my stock antenna on but retracted. I haven't walked far enough to
glitch with my Becker antenna just
All,
Background: I'm left handed and fly DLG's (among other airplanes) and
recently got a 9303. I got the Heli version because I like having a
spring switch vs. the push button that's on the left side of the
sailplane and acro TXs. Anyway, since I throw left handed I like
having my launch
Adequate, under competition conditions, allows you to safey see your
aircraft at maximum comfortable range consistently. A this range,
headroom (the acceptable range past this point) could be minimal or
non-existant.
I can not define adequate for you and your system, but for me and my
radio
I forgot to add, anyone who intends not to compete should really take a
more convervative stance and garner as much RF headroom as possible. It
just may save your butt one day...
Simon Van Leeuwen wrote:
Adequate, under competition conditions, allows you to safey see your
aircraft at maximum
I think the site is www.yntdesign.com.
Bruce Twining
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Sunday, February 19, 2006 4:49 PM
To: Tom Broeski; Simon Van Leeuwen
Cc: [EMAIL PROTECTED]; [EMAIL PROTECTED]; soaring@airage.com
Subject: Re: [RCSE] Antenna
Ohms Law E=IR (simplified here)
where P = I^2 x R:
I: say 2 amps
R: your estimation of CF rovings @ 25ohms
therefore:
P = 100W
Under typical circumstances:
I: 2.0A (same as above)
R: 36.0 of 24awg (7/32awg strand) @ 23.3ohm/1000 feet @ 20C, therefore
0.0690 ohms for 36.0
therefore:
E =
Again, how many tows in a spar? 25 ohms/ft for JUST ONE TOW.
RCSE-List facilities provided by Model Airplane News. Send subscribe and
unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe
messages must be sent in text only format with MIME turned off.
grin It may be possible to produce a spar which conducts at some value
similar to that 24awg lead, but remember I stated the magnitude of
difference was almost 3?
Now how big do you think that spar would have to be given this? And how
do you propose to make the physical electrical connections
Simon Van Leeuwen wrote:
Adequate, under competition conditions, allows you to safey see your
aircraft at maximum comfortable range consistently.
Can you please define for me exactly what ground range translates into
this airborne range?
For instance, if I get 75 feet of ground range
I wish I could, life would be simple, but (again) given that each
install is different you need to find the airborne limits for your
aircraft, that is if the range on the ground is less than 100ft (again -
relative to your radio system). Add to this my vision is rated @ 20/10,
what you
So if I understand you correctly, a ground range test has little, if
any, correlation to airborne range. If it did, then there would be an
empirical formula that would allow me to relate the two. But what I see
you saying is that each installation is unique and therefore you cannot
provide a
EXACTLY!
We can't even do good modeling of the antenna situation becaus so much
of the behavior of antennas is caused by interaction with the ground
and that is something we don't know accurately for our models and the
location and quality of the real ground keeps changing.
Oddly enough, if your
Re-read precisely what I have previously written; when normal airborne
range is diminished due to limiting factors like CF, a ground range test
becomes difficult to measure reliably and state that indeed one is safe
to fly to maximum range with headroom to spare.
Airborne systems that have no
You win on the basis of typing speed and motivation.
Simon Van Leeuwen wrote:
grin It may be possible to produce a spar which conducts at some
value similar to that 24awg lead, but remember I stated the magnitude
of difference was almost 3?
Now how big do you think that spar would have to be
I disagree.
All of our systems are compromised in terms of RF performance.
We have no defined ground plane or counterpoise to the antenna and no
consistent manner of installation.
Carbon fiber just adds to the mess, it doesn't create a mess that
wasn't already there.
So what you are saying is
24 matches
Mail list logo
