News:


  • March 09, 2021, 12:47:39 AM

Login with username, password and session length

Author Topic: Control Horn Leg Length  (Read 350 times)

Offline Crist Rigotti

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 3474
  • Electric - The future of Old Time Stunt
Control Horn Leg Length
« on: February 21, 2021, 09:01:14 PM »
How long do you make the leg of your control horns that go into the flying surface?
Crist
AMA 482497
Waxahachie, TX
Electric - The Future of Old Time Stunt


Advertise Here

Offline Motorman

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 6187
  • Millville NJ PDQ Flying Clown Country
Re: Control Horn Leg Length
« Reply #1 on: February 22, 2021, 10:24:05 AM »
3-3/4" handle spacing, 4" bellcrank with 11/16" throw to upper Flap horn 1-1/4". Lower flap horn elevator push rod 3/4", elevator horn 11/16". This is the smaller Tom Morris system that works well up to 600 Sq. In. planes.

The legs that go into the flippers should be 1" to 1-1/2" depending if they're into hard wood or glued in balsa.


Motorman 8)
Remove victim to fresh air

Offline Crist Rigotti

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 3474
  • Electric - The future of Old Time Stunt
Re: Control Horn Leg Length
« Reply #2 on: February 22, 2021, 03:12:48 PM »
3-3/4" handle spacing, 4" bellcrank with 11/16" throw to upper Flap horn 1-1/4". Lower flap horn elevator push rod 3/4", elevator horn 11/16". This is the smaller Tom Morris system that works well up to 600 Sq. In. planes.

The legs that go into the flippers should be 1" to 1-1/2" depending if they're into hard wood or glued in balsa.


Motorman 8)

Thanks for the data.
Crist
AMA 482497
Waxahachie, TX
Electric - The Future of Old Time Stunt

Offline Dan McEntee

  • 2015
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 4444
Re: Control Horn Leg Length
« Reply #3 on: February 22, 2021, 03:47:08 PM »
   I make them as long as I can and try to put them into hard wood so it makes it easier to tweak the flaps if you need to.  You get more leverage on something 2"" long than you would if it's only 1" or 1 1/4" long.
  Type at you later,
   Dan McEntee
AMA 28784
EAA  1038824
AMA 480405 (American Motorcyclist Association)


Advertise Here
Tags: