| Hi guys. I too like Larry built a gull wing door just for the safety aspect and I am sure glad I did. On my very first flight, it raised up about 1” and did not go any further. I had a latch system that simply did not work the way I had it. The lift from the gull wing showed me that at about 1000 feet as I approached cruise speed of 140mph. As soon as I realized it was up, I held it down and made a bee line back. Install two different latches and never had another problem. Gull Wing apparently does not generate enough lift to rip it off the plane. However, I would almost bet I could take the door off and go fly with no problem. Your results may vary. Mark Jones Oldsmar, Fl
N771MJ “WunderBird” www.flykr2s.com flyk...@gmail.com On Jan 25, 2023, at 11:07 AM, Rudi Venter via KRnet <krnet@list.krnet.org> wrote:
I wonder if my canopy opened up more in flight than what some others report due to the long front hinges? Maybe the air getting in under the canopy made it worse. It sure was a huge blast right in my face!
The relatively high speed most likely made things worse. The ASI was heading to 180mph when I reached behind me for the camera to record it, it was the first time I pushed the newly rebuilt and upgraded engine in level flight.
Photo taken just after the incident, you can clearly see the hinges. So,
All planes I have own and flown has this happen, the hatch, door, latch finds a way to open on it's own. 2 certified, 1 experimental.
I have often carried a bungee to hold it from unlatching.
I own a kr I have never flown. I will be needing a really safe can't wiggle loose solution..
My others fly just fine with an unlatched door/hatch/whatever. The wind holds it closed.
Jg
Yes, look at your canopy. The top is the shape of your wing top airfoil surface, and it produces lift. Vibration is what caused mine to open, but I now have an entirely different latch mechanism. The aircraft structure did not fail, nor did my latch, it just vibrated to the unlock position.
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