Installing the Top Cabin Window on CH750

IMG_5115_50R.jpg

I have just finished the installation of my windshield and top window on my CH750 project.   The version of canopy frame that I have - has a diagonal tube across the top of the frame, running from the front left to the rear right position.   Per the drawings and picture guides, I added the two channels to the diagonal to make a slight upwards bulge, ie to make the diagonal have a very slight upwards convex shape.    So, far so good!   On putting the Lexan top window on and screwing it down, I found that I have slight upward bulges in the top window above the sides of the frame, adjacent to the ends of the diagonal.  In other words my Lexan top window does not lie flat along the sides but now has a couple of unsightly upward bulges: one on the front left, and one on the rear right.    I don't know whether this will also cause a problem when my inner top wing skins 'come down' on these slight bulges.   I am reluctant to tighten down the screws at these points along the sides more than I have at the moment - sight hairline cracking around the holes has already started to appear.    I would be very interested in hearing if anyone else has had this problem and what they have done about it.

Views: 331

Comment

You need to be a member of Zenith Aircraft Builders and Flyers to add comments!

Join Zenith Aircraft Builders and Flyers

Comment by Tony Oliver on October 21, 2014 at 2:23am

Will do.   Many thanks.

Comment by Walt Snyder on October 19, 2014 at 4:20pm
Tony, try posting this on the 750 forum, I'd bet you'd get a response from someone that's had this problem.

Walt Snyder

New from Zenith:

Zenith Planes For Sale 
 

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

                                                     

Weather Maps


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:

Transition Training:

Pro Builder Assistance
 

Pro Builder Assistance

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

© 2019   Created by Zenith.Aero.   Powered by

Badges  |  Report an Issue  |  Terms of Service