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HelicopterThunder TigerRAPTOR 30 › Tracking issues with Raptor 30 V2
12-12-2011 08:17 PM  5 years agoPost 21
Simmer

rrElite Veteran

Massachusetts

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yes on the blade swap. The main grip bearings can be too tight (if you over tighten the spindle) sometimes like if the spacers are not correct, or worn.

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12-12-2011 08:36 PM  5 years agoPost 22
Jeff polisena

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westpalmbeachflorida​usa

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Thrust bearings can get flat spots on race from balls making them knotchy but usually from ware or rust from sitting but if new then shouldn't be and issue

I stole it ,flew it and gave it back ;)

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12-12-2011 09:27 PM  5 years agoPost 23
pH7

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Sterling Heights, MI​- USA

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I was going to suggest a bent ball screw, but jschenck beat me to it.

Also, check that both flybar paddles are perfectly aligned.

If it really is only a half millimeter, I don't know how you can see that from a safe distance, but them my eyes are 67 years old. (The rest of me is much younger, of course.) That small amount and only at zero degrees would pretty much be a non-issue as far as I am concerned.

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12-13-2011 01:10 AM  5 years agoPost 24
fernando13e

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Maturin, Monagas -​Venezuela

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Well i secure pretty well the spindle screws, maybe they are a little overtightened..., il check that if the problem persists even if i swap the blades, the flybar paddles are aligned as i can see (i align them with the blades as a horizontal reference) the thrust bearings are pretty new, they only have like 100 flights, i use a futaba S3152 for the pitch, Mavrikk G4 550mm carbon fiber blades, and ALL my ball link screws are straight, i never crashed my raptor since i bought it , tomorrow il be doing some test flights with the blades swapped, ill let you know how it goes. thank you very much for the input guys, every bit of help is highly appreciated.

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12-13-2011 01:19 AM  5 years agoPost 25
Band1086

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Kennewick, Wa. USA

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If the problem persists, and nothing you try works, put new thrust bearings(not just regreased) in the head. When we had the tracking going in and out on our R30's and 50's, that would fix it every time.
The old thrust bearing may even look OK, but new one's always did the trick.

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12-13-2011 02:09 AM  5 years agoPost 26
fernando13e

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Maturin, Monagas -​Venezuela

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Oh yes. i know that hehehe and of course, new parts work out better than old parts the only thing is that here in venezuela thrust bearings cost almost 50 bucks :O

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12-13-2011 02:19 AM  5 years agoPost 27
John Krebs

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Pittsburgh, PA

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It's been a long time since I've seen that happen. The term that was used for the condition was "woofing" refering to the sound it makes when it happens. Do a seach for "woofing" and start reading. There was a lot of discussion on this subject years ago.

The cause is any play or difference between the point where the blades transitions from negative to position pitch will casue one blade to be trying to go positive and the other to be trying to go negative. That is why they are severly out of track until you move the stick enough positive or negative to the point where both blade are on the same side of zero.

I remember that one of the solutions was to flip the head parts so that the main grip ball-links are on the other side. If the balls are on the trailing edge of the blade then put them on the leading enge side. I still fly a Raptor 50 but I put a Miniature Aircraft head on it years ago. Do a search for discussion on Delta

I also remember an issue with the radial bearings not fitting snug in the grips. That can be cured with some aluminum tape wrapped around the outer race of the bearing.

All of the other suggestions are good things to check and do.
Your basically trying to get eveything straight and tight.

Good luck
John

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12-13-2011 11:17 AM  5 years agoPost 28
jbiter

rrKey Veteran

Sebring, FL

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If you have another set of blades of a different brand it might be worth a try. The Raptor is intolerant of blades with a aft CG chordwise.

I also had a worn washout assy cause what you are experiencing

Jeff

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12-13-2011 05:11 PM  5 years agoPost 29
RyanW

rrKey Veteran

Edmond, Oklahoma

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Definitely do the blade swap. Jokingly I thought to myself "the old fix was to remove Mavrikk blades". Then I saw you were using them.

I am not bashing... but seriously about 90% of the fixes for Raptor 30s I saw involved taking off the Mavrikk blades.

-Ryan
Mikado USA, Kontronik, Opti-Power, MKS Servos

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12-14-2011 12:29 AM  5 years agoPost 30
fernando13e

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Maturin, Monagas -​Venezuela

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HI guys! I have great news for you!, oi think my tracking problem is solved, I swapped the blades (left blade to right grip, right blade to left grip) and tracking is now consistent I just made a few adjustments to the long links going to the swashplate and now everything is going fine!, maybe my blades are bad? Im going to look for some 550mm Align Carbon Fiber blades

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12-14-2011 04:10 AM  5 years agoPost 31
ShuRugal

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Killeen, TX

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i'll vouch for the align 550s. Been running pair on my rappy for a few weeks now and they fly great.

AMA 700159

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12-14-2011 02:19 PM  5 years agoPost 32
Simmer

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Massachusetts

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Its an odd fix but it has worked for me a couple times. My guess is the amount of play/slop/loosness was biased more to one blade. In other words the acumulated play favored one blade. Moving the blades takes the loosness and splits it or balences it across both blades better.

or... one blade is off a bit still if that was the case the problem would just move to the other side.

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12-14-2011 02:36 PM  5 years agoPost 33
fernando13e

rrNovice

Maturin, Monagas -​Venezuela

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Well, the reason I changed my blade grips is because one grip was more loose than the other making the tracking even worse than it was, and I changed the hub because it was internally cracking, making it feel more loose than it was 3 months ago, I checked my flybar and it was a little bit loose side by side, I tightened it (not too much) and everything moves freely without play.. Just normal play as it should be, links are tight and free

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12-27-2011 09:47 PM  5 years agoPost 34
raptornoob

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shrewsbury. ma.​u.s.a.

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Im with Azinferno on this one!

""Azinferno Heliman How bout maybe a bent feathershaft ""

Take the spindle out and roll it on a glass piture frame....i have 2 raptors, 1 i was always having tracking issues,,,,,tore apart the head pulled out spindle, rolled it on glass, (or flattest surface you can find!) noticed a slight bend at the end....just enough to cause eratic tracking......just my 2 cents

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