
Originally Posted by
BellCobraIV
Connor,
The stock canopy was used until the 1971 era, after that the first canopy modified was the "cut down shaped canopy" with the fibreglass rear section. Lyle didn't really like how much that canopy interfered with cockpit lighting and shadows, but it's what we had so no priority was set for it's replacement.
Lyle always supported the Reno National Air Races downtown parade. For Reno 1972 the Bearcat was flown from Stead to the Reno Cannon airport to be towed in the parade through the town, if I'm recalling correctly Clay flew his Mustang down for the parade as well. Lyle stood in the cockpit during the parade and the canopy was rolled all the way back, we had noticed at that point in history that when the canopy was rolled all the way back the emergency jettisoning mechanism would strike part of the structure for the overturn brace, so a pre-flight item was added to check that the mechanism was secured. The next day after the parade when Lyle was flying back to Reno Stead, the item was missed. Lyle got back to Stead and flew around the course kind of high to look at it. Suddenly the canopy released from the airplane catching Lyle by surprise and striking his head as it went. So as a result we borrowed the stock canopy from Bud Fountain and left his Bearcat covered in plastic. When we got back home after the races Lyle, Myself, and my Mom with out dachshund Susie all piled into the F250 and returned the canopy to Reno and installed it back on Bud's Bearcat. We didn't have an extended cab truck and it was a manual transmission so after a while Lyle would say what gear he wanted, push in the clutch and I shifted. I always remember that horribly crowded ride to Reno and back from Orange County. It was fun.
So after Reno 1972 the new all plastic canopy was made using the same windscreen as the previous one.
The shape was made by making a plaster piece and basically removing plaster where it didn't look right. There was one of the aerodynamic guys I think from Douglas that came by the hangar to look at it and he said that everyone had done a good job, he commented that the fineness ratio was ten times better than Darryl's little bubble canopy so we were all happy and the guy that made everybody else's canopies made that one as set from the plaster mold.
We would eventually in the 1980s replace that canopy due to age and sun damage from when the airplane sat outside after the belly landing in Mojave. That new canopy had an integral antenna on the inside rear surface which allowed us to remove the wire antenna and their resultant drag. At that point the area behind the canopy on the fuselage was built up slightly and the rear of the canopy frame modified to match, also at this point the rollers were replaced with Teflon slides that reduced the amount of rocking and play the canopy had making the whole assembly really tight. There was of course still air gaps around the canopy that allowed a slight bit of resultant drag. There were thought of taping the canopy closed for the 3Km record but ultimately the runway was too narrow to line up on Lyle tried lining up with the canopy closed but aborted the landing when transitioning from the slip to the landing. (Side note: this point of the landing when you are slipping to line up with the runway and transition to the nose up 3 point position, the tiny ailerons would momentarily loose effect and the airplane if you didn't stay on too of it would like to roll onto it's back, not a problem as long as you know it's coming and knew how to avoid it.)
That is the canopy story.