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Helicopter
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Elec-Helicopters New or Limited Activity
Zoom › Inverted Flight - Blades slap
05-03-2005 06:32 PM  12 years agoPost 1
Hoverdown3K

rrKey Veteran

Rochester, New York

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I was flying my shogun around at lunch today and decided to do a loop, nothing special, but I was going to hang at the top of the loop while inverted. that was fine, but when I tried to right the chopper the Main Blades hit the boom, causing the chopper to fall out of the sky.

Crash damage

One set of FOAM blades

One Alum main shaft.

I am using a brushless setup and the chopper was flying perfect, I have done loops before without an issue, this time I had a boom slap ..

What allowed this to happen? Foam Blades, too much flex? I have a set of fiberglass blades also, I might try with these blades.

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05-03-2005 10:12 PM  12 years agoPost 2
BlakeMcBrayer

rrElite Veteran

Georgetown, Ky

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The stock foam blades have huge amounts of flex along their length. they also tend to get more flexable with flight time. I have never tried inverted with foams, frankly I was afraid to.

I will say, I have tried to make mine boom strike with the fiberglass blades and had no luck.

.

Don't come off the throttle untill you see your GOD!

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05-03-2005 10:20 PM  12 years agoPost 3
cjcraigj

rrApprentice

Worcestershire, England , UK

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I have never Boom striked My foam blades in flight, Flips, inverted flight.

They do give a very soft fealing to the heli tho, Iv found wooden blades the best on the zoom

(Quick UK Pilot) :- What can I do rather than What Can't I Do! :)

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05-04-2005 06:44 AM  12 years agoPost 4
Nyala

rrNovice

Basel, Switzerland

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Hi

I think the blades need to be tighter in the blade grips to prevent too much lag which probably caused the boom strike in this case.

Regards

Mark

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Zoom › Inverted Flight - Blades slap
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