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Thunder Tiger Raptors 30-90 - Imperio > RAPTOR 50 raptor 50 major tracking problem
 
 
longrl1980
Heliman
Location: drums, pa - USA

My Posts This: Topic  Forum		i have a raptor 50 v2 and just today i was in mid flight and all of a sudden the tracking went out by like 4-5 inches at the blade tips. Landed and everything looked fine and the tracking was fine. went up again and the tracking was fine, then it went out again. Anyone have this happen to them before?

06-20-2009 12:56 AM
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Raffy
Elite Veteran
Location: Chicago, Illinois

My Posts This: Topic  Forum		Remove the screw on the main blade holder that holds the ball link. You might find one or both bent by rolling it on a flat surface.
06-20-2009 01:06 AM
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longrl1980
Heliman
Location: drums, pa - USA

My Posts This: Topic  Forum		just gave the heli like a 4th lookover and i cant find anything. everything is tight and straight
06-20-2009 01:14 AM
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FlyingHigh450
Elite Veteran
Location: Macomb,Mi

My Posts This: Topic  Forum		bent feathering shaft?

Trex 600N/hyper 50/MP5, Revmax,Spartan DS760/JR DS8900G,3 Align DS610's.
06-20-2009 01:25 AM
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TwistedRotor
Senior Heliman
Location: Tulsa, OK- USA

My Posts This: Topic  Forum		http://www.runryder.com/helicopter/...light=woof+poof

The above thread has some good info on the woof that some people have experienced with Raptors. Sounds like what you had.

The helicopter is a machine trying to commit suicide,our job is convincing her to fly...
06-20-2009 01:25 AM
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BarracudaHockey
rrMaster
Location: Orange Park FL

My Posts This: Topic  Forum		Bad dampeners
Radial bearings loose in the grips
bent spindle (though this can be a result of woof)
Screws holding the balls to the grips are bent.
Crappy blades.
Slop in the collective system somewhere.


AMA 77227
http://www.jaxrc.com
06-20-2009 01:44 AM
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longrl1980
Heliman
Location: drums, pa - USA

My Posts This: Topic  Forum		well i checked http://www.runryder.com/helicopter/...light=woof+poof and it seems to have alot of good info on it. i don't know about flipping the grips but we'll have to see. thanx alot for the posts
06-20-2009 02:05 AM
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GREYEAGLE
Key Veteran
Location: Sioux City IA

My Posts This: Topic  Forum		Pull one Blade

Then stick your ball driver on the feathering spindel bolt and give it a spin, Watch the opposing blade to see if it wave's or goes up and down. I'm with 450 -- Your spindel is bent -

greyeagle
06-20-2009 02:28 AM
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RaptorMan23
Veteran
Location: Sioux City, IA

My Posts This: Topic  Forum		That happened to me and the problem turned out to be really bad bearings inside the blade grips.
06-20-2009 03:34 AM
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Pull-n-Pitch
Key Veteran
Location: Mt. Dora, Florida (USA)

My Posts This: Topic  Forum		I'll go with Barracuda...
(Because I've been there with the Woof & Poof issues at one time!)

-Soft/Worn Dampeners, Oil can soften dampeners over time, It happens.
-Crappy (read this as cheap priced/grade) Blades, usually non balanced.
-Radial Bearings Worn or Grips worn out where the bearings fit into.
-Bent Screws (Barracuda taught me that one!) Check Grip ball screws!
-Loose servo screws/loose Ball links and or just slop in collective.

Other than that it is a item by item thing till you are able to eliminate "what" you changed that stopped the "woofing action"..

Keep us posted on how you make out.

Pull-n-Pitch
06-20-2009 04:02 AM
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BarracudaHockey
rrMaster
Location: Orange Park FL

My Posts This: Topic  Forum		You dont need to grip flip to fix woof on a Raptor. Something is wrong.


AMA 77227
http://www.jaxrc.com
06-20-2009 04:47 AM
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alvinrc
Veteran
Location: Mobile, AL, USA

My Posts This: Topic  Forum		You might also check the thrust bearings in grips.
Correct assembly order, clean and lubed.
06-20-2009 05:21 AM
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Billebob
Senior Heliman
Location: Tim-buck-2

My Posts This: Topic  Forum		Flip the grips, they did so on the Titan 50SE. It works and there is not farting around looking for the magic cure. Parts tolerance becomes less critical both for blades and related items and is situationally similar to most all helicopters after flipping. Why do you think TT did it?
Quote 
just gave the heli like a 4th lookover and i cant find anything. everything is tight and straight

Flip it, fly it and forget it ever woofed or spend you time cursing the thing complying with the many other recommendations.
You may spend much time at only to have it come back another day. It can be fixed either way however the flip is the best longest lasting lowest cost method- just ask any grip flipper

BB
06-20-2009 10:24 AM
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alvinrc
Veteran
Location: Mobile, AL, USA

My Posts This: Topic  Forum		I just took a closer look at the Raptor picture in topic starter.
Looks like woodie blades with the heat shrink covering.

The covering could be ballooning on one blade near tip causing blade to go out of track.
Look for loose/slack covering on blades and any nick/split/hole in covering. That can start trapping air while blades are rotating and really balloon the covering.

Can you borrow a set of FG or CF blades for a check flight to isolate problem to blades or something else on machine.
06-20-2009 05:44 PM
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longrl1980
Heliman
Location: drums, pa - USA

My Posts This: Topic  Forum		that's an older pic. i have carbons on there now and have been flying w/ them for a while. i'm prob gonna replace all the bearings anyway because i bought the bird used for $425 and i don't know how old they are to begin with. i'm gonna replace all the linkages as well because some are new and some are old. that's how i bought the bird. i'm gonna overhaul everything and prob upgrade to a cnc headblock anyway. i'll keep you guys posted as to whether or not the prob goes away. if it does. awesome. but if it doesn't i'll prob do the grip flip. either way i'll let you guys know the outcome. thx alot for the help

06-20-2009 06:49 PM
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Mike Bilyk
Senior Heliman
Location: Rancho Cucamonga, CA

My Posts This: Topic  Forum		flip the grips and be done with it.

who cares if something else is wrong? the grip flip fixes the problem period.

AMA # 617778
Team MasterCard
06-20-2009 07:13 PM
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alvinrc
Veteran
Location: Mobile, AL, USA

My Posts This: Topic  Forum		Yet to be determined if this is a "Woofing" thing.
We need a video and/or more info on just how violent or not the "out of track" thing is.
06-20-2009 07:25 PM
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TwistedRotor
Senior Heliman
Location: Tulsa, OK- USA

My Posts This: Topic  Forum
Quote 
i'm gonna overhaul everything and prob upgrade to a cnc headblock anyway

Might I recommend the Titan SE head. Upgraded my OEM one to this and flew it for the first time today. It's a whole new heli, love it.

The helicopter is a machine trying to commit suicide,our job is convincing her to fly...
06-20-2009 08:21 PM
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longrl1980
Heliman
Location: drums, pa - USA

My Posts This: Topic  Forum		it is very violent. one of the blades was about 4-5 inches out of track. it happened suddenly just after a quick ascent. i'll try to get a vid if i cant fix the prob
06-20-2009 11:50 PM
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Hokie_Steve
Heliman
Location: Virginia Beach, VA - USA

My Posts This: Topic  Forum		Have to second the slop in the collective comment. Anywhere from slop in the collective servo gears, to a weak collective servo, to loose mixing arm screws, to worn ball links. I bet if you hold the pitch of one blade constant in one hand while you try to twist the other blade you'll have a lot of slop in the pitch of the blade you're twisting. Get the slop out and the problem will go away
06-21-2009 12:56 AM
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Thunder Tiger Raptors 30-90 - Imperio > RAPTOR 50 raptor 50 major tracking problem
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