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HelicopterCentury Radikal G20-30 N640 Hawk Predator › So just what are the odds of loosing a engine in flight
06-04-2004 01:46 PM  13 years agoPost 1
concept1

rrKey Veteran

Youngstown, OH

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yea, acctually lost the engine. well almost. after my quick modification last week to get my 60 sized muffler on the Falcon, I never loc-tighted my engine mount bolts, and sure enough, last night was out flying and noticed it doing some funny things, I thought My gyro had gone screwy, my tail started goind wild, and as I was trying to get it closer it kind of went SPzzzzzzzinggggg, rpms skyrocketed but heli went down fast, and it really went wild, I hit throttle hold and did get it down not too hard. and to my suprize the engine was just hanging their by the fan, no bolts. so needless to say i got some loc-tight and replaced all the bolts...... luckly no damage, i did put some wear on the clutch teeth but it did not strip them. what a night, and it was so nice, no wind 65 degrees...

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06-04-2004 02:22 PM  13 years agoPost 2
SteveH

rrProfessor

Texas

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I've heard of and had the bolts come loose because of improper installation (insufficent locktite), but you are the first I've heard of having all the bolts fall out. I'd say say you are indeed lucky!

The government cannot give you anything without first taking it from someone else.

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06-04-2004 04:30 PM  13 years agoPost 3
concept1

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Youngstown, OH

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Yea,
I knew I was out of loctite when I put it together, and I have learned this lesson before. But Geeze, I only had 3 flights on it since I removed the engine to do the Muffler, I Actually removed the Side frames to get new muffler bolts installed. I picked up some loctite yesterday AM with plans on going thru the heli this weekend, I had also stripped some of the heads on some bolts so I had new bolts for the frames and motor also. But just what are the odds of them all comming out? actually one was still in by about 2 or 3 thread, the rest were gone. It almost make me wonder If I am having some abnormal vibs in the heli, I probably better check it over for bearings and balance, but then again, I was real lean which could and helped

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06-05-2004 01:27 AM  13 years agoPost 4
RICH.L

rrKey Veteran

east springfield p.a.

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i had on my hawk one bolt fall out and the others were very loose,problem was that part was put together from the factory.i put loctite on them and haven't had that happen again.
rich

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06-05-2004 02:47 AM  13 years agoPost 5
Copter Doctor

rrProfessor

Enterprise/ft.rucker ,al- home of army aviation

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lost the engine

yeah, a buddy of mine lost the engine on his calibre that way too. only the trottle linkeage kept it from hitting the ground. he was lucky to have no damage as the result too. locktite, you friend unless you use too much. i try to tell folks about the use of locktite. it doesnt take much but it does neet to be applied. i am especially careful about using too much on the small setscrews on parts you replace fairly often like mast collar , and flybar levers and such.

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HelicopterCentury Radikal G20-30 N640 Hawk Predator › So just what are the odds of loosing a engine in flight
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