Onex windshield

Discussion for builders, pilots, owners, and those interested in building or owning a Onex.

Re: Onex windshield

Postby Skippydiesel » Mon Oct 21, 2024 6:42 pm

Hi WesRagle,

"I did talk with Todd of Todd's Canopies many years ago about forming a complex canopy using lexan. He said he was never able to achieve good results "blowing" lexan."

The "beauty" of the Sonex windscreen is it's not "complex" - its a flat bend. If pre forming this would remove the tendency for fuel damage, it might be worth investigating

"I would add that for this to work you would have to be very careful tightening the screws that attach the canopy."

Please explain.

Just to be sure - I am talking about the polycarbonate windscreen not the the acrylic opening canopy which has a more "complex" shape
Skippydiesel
 
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Re: Onex windshield

Postby WesRagle » Tue Oct 22, 2024 6:37 pm

Hi Skippy,

I am talking about the polycarbonate windscreen not the the acrylic opening canopy which has a more "complex" shape


Understood.

"I would add that for this to work you would have to be very careful tightening the screws that attach the canopy."

Please explain.


I would suspect it would be easy to accidentally induce stress with the fasteners and that area would then be likely to craze if exposed to fuel.

Wes
Wes Ragle
Onex #89
Conventional Gear
Long Tips
Hummel 2400 w/Zenith Carb
Prince P Tip 54x50
First Flight 06/23/2020
42.8 Hrs. as of 10/30/21
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Re: Onex windshield

Postby Skippydiesel » Thu Oct 24, 2024 2:44 am

"I did talk with Todd of Todd's Canopies many years ago about forming a complex canopy using lexan. He said he was never able to achieve good results "blowing" lexan."

Most car spot lamp covers / headlamp lenses are made of polycarbonate (?). They are complex shapes. How is this done?
Skippydiesel
 
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Re: Onex windshield

Postby ampzapper » Thu Oct 24, 2024 11:12 am

Skippydiesel wrote:Most car spot lamp covers / headlamp lenses are made of polycarbonate (?). They are complex shapes. How is this done?


Headlamp lenses are normally injection molded. The mold for something as large as the canopy would be much too expensive in addition to other issues with molding something that big.
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