Kitfox Aircraft Stick and Rudder Stein Air Grove Aircraft TCW Technologies Dynon Avionics AeroLED MGL Avionics Leading Edge Airfoils Desser EarthX Batteries Garmin G3X Touch
Results 1 to 3 of 3

Thread: model 4 rudder

  1. #1

    Join Date
    Jan 2016
    Location
    Viburnum Mo
    Posts
    27

    Default model 4 rudder

    I'm just getting started to familiarise my self with the model 4 project I bought. I notice on some of the photos I have looked at the fin &rudder have ribs that have a fiberglass edge where their hinged On other models.. The kit I have looks like you just wrap the fabric around the fin & rudder frame, is this the case?

  2. #2
    Senior Member jtpitkin06's Avatar
    Join Date
    Jan 2010
    Location
    Greenville, TX
    Posts
    640

    Default Re: model 4 rudder

    Some kits were purchased with a speedster option which included airfoil ribs for the vertical, horizontal, rudder and elevator. Many are built without the option. Advantages are slightly more control authority and a tiny reduction in drag. Disadvantage is an increase in weight.

    If you are building without the rib kit you are correct... The fabric just wraps around the frame.

    If you want the speedster kit give Kitfox s call.

    John Pitkin
    Greenville, Tx

  3. #3
    Super Moderator Av8r3400's Avatar
    Join Date
    Jan 2009
    Location
    Merrill, WI
    Posts
    3,044

    Default Re: model 4 rudder

    With a IV-1200 and later models you will have rod end bearings for rudder hinges. If you do not fabricate some type of faring, you will wind up with a sizable gap (several inches) between the fin and rudder. This gap will dramatically reduce rudder effectiveness.
    Av8r3400
    Kitfox Model IV
    The Mangy Fox
    912UL 105hp Zipper
    YouTube Videos

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •