I attached the wings to the fuselage today and fitted the flaps. Obviously the current position of the flap control plate doesn‘t match. In fully up flap motor position, the flaps are still extended by like 5 degrees (distance between top of wing skins trailing edge and flap leading edge = 15 mm / 0.7 inch).

The flap control plae (6-W-1CZ-3CZ) is installed according to the plans, 6-W-1CZ (see pictures attached).

How did you adjust the flap control plate to match the correct position for the flaps? I don‘t want to work on it using just „trial and error“...

Thx, Martin

Views: 111

Reply to This

Replies to This Discussion

Here are the plans from CZAW for the flap control plate.


I match drilled the connection between the flap arm that connects to the flap actuator and the two torque tubes going to the flaps. I installed the flaps in position and pulled them up against the stops, set the actuator to full up, and then match drilled the holes for the two bolts. I don't know of any way to make adjustments by measuring.

If you've already drilled the two bolt holes, and the flaps are down a symmetrical amount, you may be able to adjust the rod length from the actuator to the flap torque tube lever arm.

Thx for the hint! I will try to shorten the rod form the actuator to the flap torque tube lever arm (the two bolt holes are already drilled and the flaps are both down by a symmetrical ammount). That should work.


New from Zenith:

Zenith Planes For Sale 

Classified listing for buying or selling your Zenith building or flying related stuff...

Custom Instrument Panels
for your Zenith

Custom instrument panels are now available directly from Zenith Aircraft Company exclusively for Zenith builders and owners. Pre-cut panel, power distribution panel, Approach Fast Stack harnesses, Dynon and Garmin avionics, and more.

Custom Upholstery Kits for your Zenith Aircraft:

Zenith Vinyl Upholstery Kits

Zenith Apparel from EAA:

Zenair Floats

Flying On Your Own Wings:
A Complete Guide to Understanding Light Airplane Design, by Chris Heintz

Builder & Pilot Supplies:

How to videos from HomebuiltHELP.com

Developed specifically for Zenith builders (by a builder) these videos on DVD are a great help in building your own kit plane by providing practical hands-on construction information. Visit HomebuiltHelp.com for the latest DVD titles.

Aircraft Insurance:


West Coast USA:

Pro Builder Assistance:


Transition training:

Golden Eagle Aviation

Pianosa Flying Farm

Aircraft Spruce & Specialty for all your building and pilot supplies!

© 2021   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service