TitleGarrison

No bird ever flew nonstop from New York to Tokyo, or raced 15 miles high at triple the speed of sound.                                                                                                   
  But birds do something else.
  They do not conquer the air; they romance it.
.”

  Peter Garrison

HoursAndCounting

Jur's RV7 Aircraft Factory
2917 hours
and counting
Some decisions in life are bare of any obvious logic

 

 I started working on the canopy latch mechanism. This is the handle that will allow you to open, close and lock the canopy.
First thing to do is cut back the tube where the handle assembly will be inserted. It's hard to measure exactly so I stayed conservative on the first cuts and will file my way up if the cut is still insufficient.

This is how the latch looks like. A funky piece of aluminum that pivots on a AN23-10 screw. The aluminum serves as locking mechism and has to be cut to fit perfectly around the latch pin on the rollbar.
Crucial are height (cut back of the frame), angle (aluminum needs to be very slightly bent to match the orientation of the latch pin and depth (how deep does the aluminum lock bite into the latch pin.
You need to file away little by little making sure the slider is thightly closed but without distorting the plexi or the frame. As no 2 canopies are the same, this is a matter of trial and error.

the plans call for drilling 2 1/16" holes that will be connection points for a spring. The spring pulls the hook back when unfastening.
Below is the opened position.

 Next picture is the closed position.

Initial trial fits. My hook is still at the same height as the latch pin lower (thick) border. I will need to cut the frame tube a little more to increase the height of the hook.

After cutting, the fit looks already better but not quite there yet. The hook still needs a gentle bend down to have a better grab on the latch pin.

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Caution !

Some advice on reading my log for fellow builders !

In some articles, I made corrections at later date on the original article to rectify my own stupidities or faults. Read through the entire article if you intend to use my findings/experiences on your own project !

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Legal Mumbo-Jumbo

It’s possible (not likely) that I’m not as smart as I think I am. (Occasionally, I have moments when I know this to be true. Fortunately, the feeling passes quickly.) Although I have tried to make this information as accurate as I can, it is not only possible, but also quite likely, that erroneous and misguided information lurks within these pages. I cannot and do not warrant these pages to be error free and correct. Furthermore, I accept no liability for the use of this (mis)information. And, as many would say, your mileage may vary. If, after reading this, you are intent on proceeding, please be aware that the contents of this site are protected by copyright (copyright © 2011 and 2012). Nonetheless, you may copy this material subject to these two conditions: (1) any information used is for non-commercial purposes, and (2) the source of the material is properly credited. Of course, you may link to any page herein. At some articles, snippets of the plans from Vans are visible. These are for educational and illustrations purposes only and should never be used as plans for part construction or assembly as plans may have changed since the picture was taken and more important they are protected by Copyright by the Vans Aircraft Mothership company.

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