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#11
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Blanik L13 Windscreen Replacement
On Feb 24, 8:59*pm, harold wrote:
My experience with getting parts from Blanik is they are close approximations, but they are never exact fits. *They will take a fair amount of tweeking to get to fit after you get them. * I once got a L-23 canopy replacement. *It was not formed correctly, it was not trimmed, and none of the holes were drilled. *It cost me a lot for my A&P to install. * The same was true for a L-23 wing section and an L-13 landing gear trunion. *It took significant work after receiving to get each one of them to fit. On Tue, 24 Feb 2009 12:18:31 -0800 (PST), Mike125 wrote: Our club (USA) is looking to replace the broken foremost windscreen on our L13 and is seeking alternative sources. A search of RAS turned up very limited info. Aircraft Windscreens Inc in CA was mentioned but I couldn't find them on the web. The part from LET is $500+. Also, does anyone with experience with this particular job have tips or tricks? There are about 80 srews around the frame. That's alot of drilling. I know we need special bits. Mike Another tip on edges. Several years ago I was in a plastics shop watching the technician "flame polish" the edges and holes of Plexiglas parts. He was using a Hydrogen/air torch which he explained was just the right temperature and didn't discolor the plastic. He would quickly pass the nearly invisible flame along cut edges pausing for a second over drilled holes. The result was perfectly clear and smooth edges and holes with no sign of stress riser cracks. He said the process virtually eliminated cracking by briefly melting the plastic. |
#12
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Blanik L13 Windscreen Replacement
He would quickly pass the nearly invisible flame along cut edges
pausing for a second over drilled holes. *The result was perfectly clear and smooth edges and holes with no sign of stress riser cracks. He said the process virtually eliminated cracking by briefly melting the plastic. Ahhh, flame annealing, brilliant solution. Practice practice practice! -Paul |
#13
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Blanik L13 Windscreen Replacement
When installing windshields on certified aircraft I always drill the
holes one size larger than the hardware. Otherwise the bolts/screws will cause cracks. |
#14
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Blanik L13 Windscreen Replacement
yes...I offer them and helped to develop these replacement parts through LP
Aero, we have since have sold a lot of L-13 and now also L-23 Blanik canopies and canopy parts please see http://www.wingsandwheels.com/page37.htm best regards Tim Mara Please visit the Wings & Wheels website at www.wingsandwheels.com "Mike125" wrote in message ... Our club (USA) is looking to replace the broken foremost windscreen on our L13 and is seeking alternative sources. A search of RAS turned up very limited info. Aircraft Windscreens Inc in CA was mentioned but I couldn't find them on the web. The part from LET is $500+. Also, does anyone with experience with this particular job have tips or tricks? There are about 80 srews around the frame. That's alot of drilling. I know we need special bits. Mike |
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