[NSRCA-discussion] control horns
Scott Smith
js.smith at verizon.net
Fri Nov 3 15:18:32 AKST 2006
Servo arm is 7mm, control horn is 36mm from the hinge (top hinged Brio,
small 3412SA servo!) ATV's are 112% and 115% to give +- 21 degrees. Dual
rates are dialed down to +- 15 degrees.
-----Original Message-----
From: vicenterc at comcast.net [mailto:vicenterc at comcast.net]
Sent: Friday, November 03, 2006 5:43 PM
To: NSRCA Mailing List; NSRCA Mailing List
Cc: Scott Smith
Subject: Re: [NSRCA-discussion] control horns
Question or comment:
In the picture I see that you use long servo arm. Looks like the ratio in
your linkage is very close to 1:1. I could be wrong because the angle in
the picture. In my pattern planes, I usually finish with a ratio of 1:3.
That means that if the horn (distance to the hinge line) is 1.5 inches, I
use 1/2 inch servo arm. Usually the servo arms that come in the servo works
well for me. One time I tried to set up with a ratio one to one and the
plane was practically unflyable for precision. I use for elevator high rate
(spins) about 20 degrees having the radio rate set 150% (60 degree of servo
movement is converted to 20 degrees in the control surface). I use the
flying modes to reduce the throws for normal fly to get around 8-10 degrees
(around 65% in the flying mode).
What is your experience in this regard?
Vicente "Vince" Bortone
-------------- Original message --------------
From: "Scott Smith" <js.smith at verizon.net>
I've used 3/32 aircraft ply laminated with CF epoxied into a 1/8" slot.
Shape as needed to get it over the hinge line.
-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of JShulman
Sent: Friday, November 03, 2006 5:03 PM
To: NSRCA Mailing List
Subject: Re: [NSRCA-discussion] control horns
cause that was back on the Jekyll and the wing was only 3/4" thick. It
was easy to get it centered on the hinge line. I think the new wing
thickness is double that so I might need a bit more reach forward.
Regards,
Jason
www.jasonshulman.com
www.shulmanaviation.com
www.composite-arf.com
-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Rick Kent
Sent: Friday, November 03, 2006 4:45 PM
To: nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] control horns
If a bolt and aileron horn works well, why change it?
Rick
-------Original Message-------
From: JShulman
Date: 11/03/06 16:35:14
To: NSRCA
Subject: [NSRCA-discussion] control horns
Hi all,
What are you guys using for control horns on your planes? Last
things I used
were a 6/32 bolt and "aileron horns" with a clevis. Is that
still the way to
do it or is there something better. Not interested in the MK
BB stuff, too
"good" for me.
Thanks,
Jason
www.jasonshulman.com
www.shulmanaviation.com
www.composite-arf.com
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