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HomeAircraftHelicopterBeginners Corner › 30 raptor blade woof
08-06-2009 01:01 AM  8 years agoPost 21
garaptor

rrApprentice

Atlanta,Ga,usa

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blade track
The woof is when the blades go so far out of track that it makes a certain sound and you can see the blades inches out of track from a hundred feet away and it shakes the copter all to s$#t. Immediately get out of the zero pitch range to save it.. The poof is when it is so bad the heli flies apart or the blades hit the tail boom. There are many factors that contribute to blade track failures but I tried everything to fix mine but the main factor on the raptor is overspeed. Once I limited my rotor speed it never happened again even though my copter is worn out.
Many recommend flipping the blade grips. See http://www.raptortechnique.com/ts-blade-track.htm

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08-06-2009 01:08 AM  8 years agoPost 22
Heli0228

rrApprentice

Ripplemead, Va

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woof
Check the dampners, then the thrust bearnings for rust and make certain they are greased, and the spindle shaft, then make shure at the speed the woof happens the blades have some pitch it will help oddly enough that was the problem with mine, after I added the pitch the woof went away.

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08-06-2009 01:15 AM  8 years agoPost 23
ruddernate

rrKey Veteran

sulphur,Ok.

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i've read about the grip flip but i've always stayed away from it. mainly because i've got so many perfectly flying hours on my raptors stock. it flew fine before so i feel like i just need to find what changed in this heli from then til now. thanks for the comments guys. it's one of those issues that will have you chasing your tail.

fly it like you stole it

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08-06-2009 02:44 AM  8 years agoPost 24
tarzan_eb

rrApprentice

Central Illinois USA

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woof and poof
I fly only raptors and I have never had that problem, But my friend had a titon and his did the woof about four times one day and it was scary. He was doing tail down tic toc and when he would come back to horazontal it would woof like crazy 4 inches or better between blades
Scarrrry he set it down we checked it out visually nothing seemed wrong tried to tic toc again wooof woof.He tor it down found his dampers were to soft and it ovaled the plastic head.Got a new plastic head and harder dampers didn't have the problem again. He was running 1900 HS. I run 1900 HS on all my raptors never had the woof woof problem KNOCK KNOCK

Fly it ! Crash it ! Rebuild it ! Repeat as needed !! Everett

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08-06-2009 02:54 AM  8 years agoPost 25
ruddernate

rrKey Veteran

sulphur,Ok.

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i'll let ya know what i find in the head. it's the weirdest issue i've ever had happen on one of my helis. scariest as well. my flying buddy said it could have something to do with harmonics going on at a certain headspeed or pitch hs combo. i don't run a gov so i rely on throttle curve. i'll dig around in the head and see. i just built this head out of mostly new stuff but i can't remember for the life of me which dampeners i used. i'll check it all out tomorrow sometime.

fly it like you stole it

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08-18-2009 01:46 AM  8 years agoPost 26
ruddernate

rrKey Veteran

sulphur,Ok.

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well, i changed dampeners and bumped up my hs a little. the old dampeners were the red ones and still felt good. i've flown the raptor a couple times now and have had no problem. before it did the woof and poof everytime i fired it up so i'm hoping she's all good.

fly it like you stole it

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