Re: installing tail wheel spring/ angle of incidence
toggle quoted message Show quoted text
If the mains are on a level floor then you hoist the tailwheel to where you want it to get WL15 level. If you measure the vertical height from the floor to the bottom of the tailwheel. Lets call that measurement “Ztw”. Then you measure the horizontal distance from the “plumb point” below the center of the tailwheel to the centerpoint between the two main wheels (this point is below the centerline of the fuselage). Let’s call this distance “Xtmw”. You can use the following formula to compute the ground angle “A”.
A = arctan( Ztw / Xtmw)
Hope this helps.
From: main@Q-List.groups.io <main@Q-List.groups.io> On Behalf Of Mike Steinsland
Sent: Thursday, January 12, 2023 8:18 AM
To: main@Q-List.groups.io Group Moderators <email@example.com>
Subject: Re: [Q-List] installing tail wheel spring/ angle of incidence
I think what I am going to do is level the fuselage at WL15.
Because I have adjusted the angle of the tailwheel, resulting in the tailwheel being 3" lower, I'll set it at 24" to the floor rather than the 27 called for.
It sounds to me that the reflexor will work for correcting any minor angle variation.
Jay, I will contact you about pictures.
Can anyone tell me where to measure the AOA with the fuselage level at WL15 so that I can confirm I'm pretty close before I glue this spring in?
Or is setting the wheel at the right height sufficient?
On Thu., Jan. 12, 2023, 9:54 a.m. Chris Walterson, <dkeats@...> wrote: