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RobNeils

Canopy anti-bulge

With greater speed comes canopy bulge. Over complicated mechanical systems to stop the bulge using many parts are completely unnecessary.

The chief design problem is how to get an anti-bulge pin on the canopy to seat into the fuselage since the path of motion of a descending canopy is curved. Pins don't slide into a curved slot...but an egg can!

Affix half an egg to the bottom of the canopy. Drill out a round hole in the fuselage sill where the egg can nest. The nested egg prohibits the canopy from bulging.

An anti-bulge system with NO moving parts.

It's easy to design complicated Rube Goldberg contraptions but hard to get a design tritrated down to only the necessary and sufficient elements to get the job done. You know you've succeeded in the design when it meets two esoteric standards: Is it simple? Is it beautiful.

The egg anti-bulge system works efficiently, simply and well. It is robust to damage and doesn't hardly cost. It builds quickly.

Use a wooden "Easter Egg" which can be bought at almost any cutsie store. Ask your wife where to get one. Aircraft Spruce doesn't carry wooden eggs!

Here's a solution: NO moving parts in this anti-bulge system.
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