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HomeAircraftHelicopterFuel-Helicopters New or Limited ActivityNext D › Canopy Cracking from Stand Offs
04-23-2011 12:21 AM  7 years agoPost 1
leadlag

rrVeteran

Worthing UK

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On my ENV after a few flights I have found the canopy stand offs which steady the canopy cause unsightly cracks on the screen on the outside of the canopy.

I am not the only one as someone else in the club has the same problem with his ENV.

To solve this I pulled one of the ali sleeves out of the rubber stand offs and use a shorter bolt to bolt back to the front frame. This will loeave you with a flexible bit of rubber on your stand off which should hopefully stop your canopy from cracking.

Anyone else had this problem?

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04-23-2011 01:13 AM  7 years agoPost 2
Pulento

rrVeteran

CHILE

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+1

Did the same as Colin Bell. A bit of epoxy from inside. The T700 as a similar system and also gets cracks.

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04-23-2011 03:20 AM  7 years agoPost 3
helinutz2

rrApprentice

Medicine Hat, AB Canada

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Instead of 2 sleeves per side, I use 1 1/2. This leaves the bolt head slighly deeper in the rubber. No issues so far.

Rave 90 ENV / Radikal E640 / Rush 750 / Trex 600N
Team No WhinerS, Team Renegade R/C Heliflyers

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04-25-2011 03:05 AM  7 years agoPost 4
macsrgreat

rrApprentice

Flower Mound, TX

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+1 did the same but fill the remaining cavity of the standoff with a piece of fuel tubing trim to the end of the stand off and it will allow it to be rigid but still dampen the canopy.

THX Rus.

Team Gaui USA~VP Fuels~Spin Blades~YS~Scorpion~Gens Ace~MKS USA~Castle Creations

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04-25-2011 03:17 AM  7 years agoPost 5
helinutz2

rrApprentice

Medicine Hat, AB Canada

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^^^^
Ahh...good idea. I think I will do that as a little extra insurance.

Rave 90 ENV / Radikal E640 / Rush 750 / Trex 600N
Team No WhinerS, Team Renegade R/C Heliflyers

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04-25-2011 04:02 AM  7 years agoPost 6
macsrgreat

rrApprentice

Flower Mound, TX

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:-)

Team Gaui USA~VP Fuels~Spin Blades~YS~Scorpion~Gens Ace~MKS USA~Castle Creations

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04-25-2011 04:02 AM  7 years agoPost 7
thenewguy

rrElite Veteran

Corvallis, Oregon Where there is liquid sunshine!

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JB weld a very thin piece of aluminum in the place the stand off rubs. Problem solved.

Thanks,
Chris

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04-25-2011 02:07 PM  7 years agoPost 8
rcnut

rrElite Veteran

Rockford, Illinois

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^^^ I like that!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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04-26-2011 04:57 PM  7 years agoPost 9
Jim Woodward

rrApprentice

Boca Raton, FL

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Are you gents with the canopy cracking using the stock canopy attach method? IE, the plastic rings, rubber grommets, and lower landing gear pin?

Here is what I've found using glow. During the first couple flights the lower forward edge of the frame that engages the "U" canopy rubber channels will wear such that it perfectly matches the frame structure: landing gear, carbon frame, etc.. Looking at the U rubber pieces of the canopy, you'll see these horizontal wear marks. At this point I installed split fuel tubing over the CF frame piece and this has kept the canopy tight.

Not doing this initially, I let the rubber U pieces wear too much. A little play here, allowed for more play in other areas, and this prematurely wore the upper canopy standoffs and EXPOSED THE SCREW HEAD. Rectifying the problem I rotated the canopy standoffs 180 degrees (since they wore at an angle this placed fresh rubber in contact with the canopy), installed the split fuel tubing on the lower CF frame edge, and its been nice and snug since.

I think if you keep the canopy snug all around as designed it should be Ok, but any play and it will encourage more wear.
Thanks,
Jim

Team Futaba

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04-26-2011 06:37 PM  7 years agoPost 10
rcnut

rrElite Veteran

Rockford, Illinois

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Jim,

I haven't had this problem...yet! I had a heck of a time trying to keep the plastic rings glued to the rear of the canopy. So to resolve this, I modified a set of Booya quick release canopy mounts for a Trex 700 to fit my Rave. I no longer pull the grommet off the canopy when removing the canopy.

They work great! And it makes gaining access to your radio gear fast!

Team Miniature Aircraft
"I love the smell of Nitro in the morning!"
...Citizen 654!

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