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Serious Project : Off with my Canopy !!!!!
- Thread starter 2TR
- Start date
Interesting stuff Ricker, I too am working on a canopy of sorts for a lil cat project. And i have to say i understand all the warnings, but here is my experience, I spoke with the Linder guy about the Lavin rules a long time ago, he was to send me a copy of the guidelines, never got em. Basically all i remember was a long story on how i needed to buy this top dollar piece from some specific company. I guess i am with Rick in thinking of alternate methods, Several race boats i have looked at have what i would feel are very thin laminates holding in a iffy piece of plastic to look through, I am sure mine will be stout. I will post some pics as progress moves along, I don't have a Glass Dave here to help me though and its winterize time, so could be awhile.
DAREDEVIL
Banned
Just send it down to Sarasota and Bob Hanson will fix u up !!!!
he knows what he is doing and sofar i never seen anything come appart what he did.
By the way Phantom is right next door and a canopy of a Phantom 39 would actually work perfect.
the window is probably the most expensive like crazy 8K or so.
DAREDEVIL
Banned
Dean,,,i think its all about saftey. I don't know if i would trusst any home made window ??????
Ratickle
Founding Member / Super Moderator
I know they do it for the big aquariums with the rounded corners etc. I would contact an acrylic aquarium manufacturer and discuss the project with them. If you look at the custom installations in public aquariums where the formed piece is holding back thousands of gallons of water, I would have to believe they've done decent research.Like these guys.
http://www.acrylicaquariums.com/
Also, I would also believe Rich and George have as well. I'll see what I can find in your area.
DAREDEVIL
Banned
If u roll a boat @ 100MPH i think the impact on that window is way more press on a small point then on a aquarium.
WHERE is phara ??? the proffesor ??? LOL
Ratickle
Founding Member / Super Moderator
Ratickle
Founding Member / Super Moderator
No doubt. But the area is a lot less.
Ratickle
Founding Member / Super Moderator
These guys handle bulletproof plastic sheets. Could call and ask about forming and structural integrity loss during the process.
http://www.ridoutplastics.com/bulresplas.html
http://www.ridoutplastics.com/bulresplas.html
2TR
Competitor
Not yet, but I only contacted him yesterday.
2TR
Competitor
No, I don't think so.. I have spoken with so many people about this I'm losing track.
I Have spoken with some friends that work in the R&D/Crash department at GM and they have given me a couple pointers, but the problem is with cars (race or street) they have crumple zones, you can't do that with a boat.. It opens up on impact it would allow the people inside to get blasted with water and sink.
Another issue is the angles if you knew for-sure your boat would enter the water at this direction you could build for that, problem is you don't know how your hitting the water.
Like some one posted already, you cant build a perfect canopy.
Sean H
Charter Member
No where near the same loads. Some of the loads we have calculated in worst case scenario are in the 15,000-20,000 psi range for a supercat. (Direct hit to the smallest area at about 140 mph).
Remember, static water pressure is cross sectional in nature, it doesn't matter how wide (volume) it is, only depth (elevation). A 1" pipe 40 feet deep will have the same pressure as a lake 40 feet deep. Water pressure increases at 14.7 psi every 33 feet of elevation. It would take a big tank to ever get near a supercat crash at 140.
Ratickle
Founding Member / Super Moderator
Under which type of requirement Sean?
ACRYLIC Polymethyl Methacrylate;
Trade Names: Acrylite®, Acrysteel®, Implex®, Lucite®, Korad®, Plexiglas®, Polycast®
Specific Gravity:
1.15
Structure:
Amorphous
Bonding:
Excellent - Ultrasonic & Solvent
Machining:
Excellent
Transparency:
Clear
UV Resistance:
Good
Chemical Resistance:
Acids-Good / Alkalies-Excellent / Solvents-Poor.
Water Absorption:
0.30 % @ 24 hr.
Tensile Strength:
9,000 @ 73°F
Hardness:
R-120
Impact:
1.1 ft. lbs./in. { IZOD }
Compression:
14,000 psi (10% Deflection)
Elongation:
3-5% @ 73°F
Flexural Strength:
15,000 psi @ 73°F
Flexural Modulus:
425,000 psi @ 73°F
Melting Point:
212°F / 100°C
Continuous Service Temp in Air (Max)
185°F
Deflection Temp:
187°F @ 66 psi - 170°F @ 264 psi
Coefficient of Expansion:
0.000055
Dielectric Strength
400 Volts/Mil
ACRYLIC Polymethyl Methacrylate;
Trade Names: Acrylite®, Acrysteel®, Implex®, Lucite®, Korad®, Plexiglas®, Polycast®
Specific Gravity:
1.15
Structure:
Amorphous
Bonding:
Excellent - Ultrasonic & Solvent
Machining:
Excellent
Transparency:
Clear
UV Resistance:
Good
Chemical Resistance:
Acids-Good / Alkalies-Excellent / Solvents-Poor.
Water Absorption:
0.30 % @ 24 hr.
Tensile Strength:
9,000 @ 73°F
Hardness:
R-120
Impact:
1.1 ft. lbs./in. { IZOD }
Compression:
14,000 psi (10% Deflection)
Elongation:
3-5% @ 73°F
Flexural Strength:
15,000 psi @ 73°F
Flexural Modulus:
425,000 psi @ 73°F
Melting Point:
212°F / 100°C
Continuous Service Temp in Air (Max)
185°F
Deflection Temp:
187°F @ 66 psi - 170°F @ 264 psi
Coefficient of Expansion:
0.000055
Dielectric Strength
400 Volts/Mil
Sean H
Charter Member
You see why having the correct windshields is important.
We have run several scenarios of a 10,500 lb boat going 140 with rapid deceleration. The 20k psi is pretty much a direct frontal hit to the canopy with basically a 140-0 deceleration.
DAREDEVIL
Banned
Will over at Phantom has them sitting there,,,,(the molds) for the 29.9 and 39 !!!!
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