HobbyKing.com New Products Flash Sale
Reply
Thread Tools
Old Mar 01, 2013, 12:06 PM
Registered User
USA, PA, Alexandria
Joined Sep 2004
23 Posts
Decided to look at the ailerons next:
(click on image to enlarge)

First image below shows the aileron control rod at a pretty strong angle to the control horn on the aileron. I would think that the rod should be more of a 90 degree with the aileron. Comments or advice?

(I believe that the original builder made the control horn attach at the location shown (on the plans) to be on top of a small ply plate (on the bottom side of the aileron). I'm thinking about redoing a new ply plate and control horn location.) (screws flush with wing are screws to attach wing struts.)

Also, the aileron servo has a large servo horn attached to top of standard servo horn wheel (I have never seen this large an aileron servo horn). Is there any issues with using a large servo horn like this one?
Name: Small13.jpg
Views: 45
Size: 26.3 KB
Description:


Name: Small14.jpg
Views: 39
Size: 28.3 KB
Description:

Name: Small15.jpg
Views: 41
Size: 27.7 KB
Description:
rutanman is offline Find More Posts by rutanman
Reply With Quote
Sign up now
to remove ads between posts
Old Mar 01, 2013, 12:14 PM
Hamburger Eatin' Fool
TomCrump's Avatar
Traverse City, Michigan
Joined Dec 2005
10,743 Posts
Nice job on the rebuild !

Your servo horn looks ok, to me. The aileron horn does need to be moved, so that you have a 90 degree angle, as you said.
TomCrump is offline Find More Posts by TomCrump
Reply With Quote
Old Mar 01, 2013, 09:46 PM
Registered User
SunDevilPilot's Avatar
United States, AZ, Gilbert
Joined Jun 2008
848 Posts
I usually have my rods at a slight angle, no where near what you have in the photo. Remember, the arm travels in an arch so I make my rod 90 degrees when the servo is 1/2 way through its travel on one side.

SunDevilPilot
SunDevilPilot is offline Find More Posts by SunDevilPilot
Reply With Quote
Old Mar 02, 2013, 09:31 AM
The Prez....... again
kenh3497's Avatar
United States, IA, Rockwell
Joined Jul 2011
3,560 Posts
I'm thinking the servo was originally to be laid on it's side with only the arm exposed. I've seen the long heavy duty arms are used on the IMAC style planes. Nothing wrong with them.

Short of redoing the servo mount, you could just adjust the rod length and servo arm position to get closer to the 90 degrees you need. If it were my plane I would bite the bullet and make new servo mounts, but that is me. The servo mount and hatch cover would be one in the same with the servo attached to the cover. Do as you feel is best for you.

Ken
kenh3497 is offline Find More Posts by kenh3497
RCG Plus Member
Latest blog entry: Start of a new chapter.
Reply With Quote
Old Mar 04, 2013, 12:05 PM
Registered User
United States, CA, Chula Vista
Joined Apr 2005
102 Posts
Don't like the horn location on the ailerons, looks like they may bind at extreme travel. If so, the 90 degree position is preferable. What's the torque of the servos? and the wingspan of the plane? Does your manual give you a recommendation of servo torque for the ailerons?
rica1 is offline Find More Posts by rica1
Reply With Quote
Old Mar 04, 2013, 07:41 PM
Registered User
epoxyearl's Avatar
United States, MD, Elkton
Joined Oct 2011
7,547 Posts
I'm playing 'catch-up' here...The longer arm on the servo is probably to get more "throw"-DUH !, but it looks like someone wanted to fly 3-D with it, to me.

When you deflect that long a servo arm, it kind of 'locks' the aileron at full deflection, if you can imagine what I'm trying to say.- Deflect the servo by hand to full throw, and see if the servo arm points directly at the aileron horn......that's a Good thing, if the servo has enough torque to do it.

I think the "standard" servo arm aligns pretty well,and no one bothered to move the horn,when the long arm was installed.
epoxyearl is online now Find More Posts by epoxyearl
RCG Plus Member
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Wanted 1/4 scale Taylorcraft or Decathlon Plans Nicksbbq Aircraft - Fuel - Airplanes (FS/W) 1 Oct 25, 2012 06:09 PM
For Sale 1/4 Scale RC Guys Decathlon (New) Lumsden Aircraft - Electric - Airplanes (FS/W) 7 Jul 23, 2012 07:03 AM
Sold Pilot 1/4 Scale Bellanca Decathlon Kit by Ok Model Rare Vintage pilotfrank Aircraft - Electric - Airplanes (FS/W) 0 Jul 14, 2012 02:57 PM
Found Dynaflite Giant Scale Super Decathlon Wing. flyboy1945 Aircraft - Fuel - Airplanes (FS/W) 0 Jul 09, 2012 02:35 PM
For Sale Pilot 1/4 scale Bellanca Decathlon mint grum-man Aircraft - Fuel - Engines and Accessories (FS/W) 0 May 25, 2012 10:36 AM