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Old 09-02-2017, 02:47 PM
dsm8 dsm8 is offline
Join Date: Oct 2006
Location: Madison CT
Posts: 45
Default Canopy question

Getting ready to trim my canopy. Does anyone know what the gap between the forward canopy and back window should be., pg 34-05 states that there should be a 1/32" from aft edge of the canopy and the forward edge of 1277A, but it appears if I do that there will be a gap forward of the roll cage leaving no part of the bar for the canopy to engage as well as leaving a significant gap for air and rain to get in.

Don "Donnie Mac" MacMillan
RV-12 12808
Finish kit 80% done 80% to go
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Old 09-02-2017, 03:03 PM
tomkk's Avatar
tomkk tomkk is offline
Join Date: Apr 2014
Location: Port Orange, Fl
Posts: 731

If I understand correctly, it sounds like you have 1277A positioned too far forward. 1277A is the Lexan rear window, right? If I remember right, I had a bit of hard time bending the flat Lexan sheet and getting it positioned correctly.

I've since replaced my Lexan rear window with the new Plexiglas one because the Lexan crazed and just didn't look good.
Port Orange, Fl
RV-12 N121TK ELSA #120845; first flight 06/10/2015
RV-12 N918EN ELSA Eagles Nest Project; ready for engine & avionics
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Old 09-02-2017, 03:22 PM
daveyator daveyator is offline
Join Date: Jan 2011
Location: adelaide, south australia
Posts: 140

The canopy sits 'half on' the roll bar. The rear edge should be fairly close to the seam between the roll bar halves. I would not think you would need to trim any significant amount from the rear of the canopy. Mine only needed slight sanding along the front edge to clear the avionics bay cover. Everything should finish up pretty well straight out of the box.
Hope this helps
Cheers, DaveH
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Old 09-02-2017, 04:25 PM
Azjulian Azjulian is offline
Join Date: Dec 2015
Location: Scottsdale, Arizona
Posts: 130

Don - could you post a picture, side on and then from the top ? Wondering what you have going on
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Old 09-02-2017, 04:26 PM
DHeal DHeal is online now
Join Date: Sep 2006
Location: Windsor, California
Posts: 680

Be sure your roll bar is correctly positioned.
David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B) - N124DH flying since March 2014 - 640+ hours (as of June 2018)!
VAF donation through June 2019.
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