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HelicopterThunder TigerRAPTOR 50 › stock tail parts
05-14-2008 02:56 AM  9 years agoPost 1
trevstaff

rrNovice

Beaver PA

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I have been flying my Titan (first heli) and love it. Thank god for the sim.
The LHS guy was talking about a weak part in the stock tail assembly. Can anyone explain the problem with the dangerous parts?

Thanks,

Trevor

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05-14-2008 03:33 AM  9 years agoPost 2
OK HELI

rrApprentice

Billings, Montana - USA

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part # pv0499
the stock one will fail. the new one is about $6 bucks.

Raptor 50 Titan with DX7, GY401, and TT Redline 53 is Awsome!

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05-14-2008 03:46 AM  9 years agoPost 3
David Blain

rrKey Veteran

Mt. Dora, Florida (USA)

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If you got your Titan Manual on assembly #14, page 15 you have the tail rotor hub (BK-0307)-- this is your weak link! Because it has two threaded grub screws (set screws) that screw into the hub!
Raptor has come out with a replacement part under PV-0499! This is a one piece solid hub (uses the same 3mm nuts to attach the tail blade bearing assembly. The old raptor part was prone to failure and would "throw" the blades when it failed!
I know Heliproz or several other suppliers here on RR have it in stock and cost is about $5-6 bucks... It's cheap insurance!
I hope I helped clarify the question and get that part changed out asap! It will save the Titan!

Pull-n-Pitch

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05-14-2008 06:18 AM  9 years agoPost 4
Girard Ibanez

rrVeteran

Tucson, Arizona (formally from Guam)

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Still have my R50 V2 and still same old stock part. No issues here. I have witness a flying buddy's break but after I did the rebuild I have never seen it break since then.

I don't have a reason to change or upgrade the tail hub unless I use after market blades or larger blades. Of course, I fly with the stock plastic fantastic tail rotor blade.


Team Thunder Tiger
since 6/2005 to 12/2014

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05-14-2008 01:42 PM  9 years agoPost 5
trevstaff

rrNovice

Beaver PA

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Thanks for the responses, that answers my question.

Trevor

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05-14-2008 03:16 PM  9 years agoPost 6
ragmag

rrNovice

Fredrikstad - Norway

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Be sure to make an inspectionhole if you got the stock plastic tailcase.

The pin in the red gear has loosen twice for me. First time I could hear it inside the tailcase, before it went all the way trough.
The second time I were not so lucky. The tail "exploded" just before takoff. Broken tail, tailbelt and mainrotor blades.

I got an upgrade tailcase now, but I still dont hover with the tail pointing at me. ;-)

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05-14-2008 03:58 PM  9 years agoPost 7
BarracudaHockey

rrMaster

Jacksonville FL

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That can be prevented by a piece of heat shrink over the gear, a small notch filed into the pin, or just locktiting and checking the set screw in the end of the hub.

Or do what I did and replace it with the QuickUK tail pulley.

Though I greatly respect Gerald's about Raptors, I would highly reccomend replacing the tail hub with the SUS upgrade, its cheap, its easy, and it prevents over torqueing of the grub screws, or unseen tail rotor impacts, from slinging blades off. It happened to me twice, once was a total loss and the other in a hover where the thing sailed past my ear.

Andy
AMA 77227
http://www.jaxrc.com

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05-14-2008 04:06 PM  9 years agoPost 8
jschenck

rrProfessor

La Vista, NE.

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Found this one time while taking apart my tail. This is what I do to prevent it from happening again.

I will agree with Girard that there are many people who have many/many hours with the PV0151 style tail hub flying just fine. I have had a tail blow apart twice on me and it was likely caused by tail blade grounds strikes that weakened the grub screws.

BUT a $6 tail hub removed the concern. the PV0499 is a better design. you can see the V1 hub, stock PV0151 V2 hub and the PV0499 in the last photo.

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05-14-2008 08:00 PM  9 years agoPost 9
Girard Ibanez

rrVeteran

Tucson, Arizona (formally from Guam)

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The picture of the pin coming out from the tail pulley seems to be very common. The solution I found was to clean the old loctite from the set screw and tail output shaft.

Old loctite will give a false impression that the set screw was properly tightenned.

If the set screw goes in with ease then you know you did a good job of removing the old loctite.

Girard


Team Thunder Tiger
since 6/2005 to 12/2014

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05-15-2008 12:29 AM  9 years agoPost 10
kas4j

rrNovice

murfreesboro,tn

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mine last all of 5 minutes on the first flight of a new titan. thankfully i was only 2-3 ft off the ground. the tail blade wizzed by about 10 ft from my head.scared the crap out of me. i replace the stock hub with the sus(stainless steel) one and the stock pitch fork and slider for the alumunum one from amain hobbies. i think part of the problem with mine breaking was the grip bolt was to tight. now i have them just tight enough to hold up under their weight.

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05-17-2008 01:29 PM  9 years agoPost 11
Mike Bilyk

rrApprentice

Tulsa, OK - USA

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mine last all of 5 minutes on the first flight of a new titan. thankfully i was only 2-3 ft off the ground. the tail blade wizzed by about 10 ft from my head.scared the crap out of me. i replace the stock hub with the sus(stainless steel) one and the stock pitch fork and slider for the alumunum one from amain hobbies. i think part of the problem with mine breaking was the grip bolt was to tight. now i have them just tight enough to hold up under their weight.
did you use locktite?

the stock hub works fine, you just HAVE to use locktite.

one drop of locktite is cheaper than a 6 dollar new hub

AMA # 617778
Team MasterCard

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05-17-2008 01:39 PM  9 years agoPost 12
Girard Ibanez

rrVeteran

Tucson, Arizona (formally from Guam)

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Here are some helpful information:

http://www.myraptor.net/r50v2/r50v2...or_hub_tip.html


Team Thunder Tiger
since 6/2005 to 12/2014

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05-22-2008 04:14 AM  9 years agoPost 13
kas4j

rrNovice

murfreesboro,tn

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mike i did use locktite and i made sure not to over tork the grub screw. i think most of the problem was the blade being to tight. the alum that the factory used is much weaker than the stainless steel hubs. it would be nice if thunder tiger would go ahead and make it a standard part instead of an aftermarket part.

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05-22-2008 04:50 PM  9 years agoPost 14
BarracudaHockey

rrMaster

Jacksonville FL

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it would be nice if thunder tiger would go ahead and make it a standard part instead of an aftermarket part.
I had high hopes they would ship the Titan with the SUS hub, but alas it was not to be

Andy
AMA 77227
http://www.jaxrc.com

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05-22-2008 05:56 PM  9 years agoPost 15
TwistedRotor

rrApprentice

Yup

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I had high hopes they would ship the Titan with the SUS hub, but alas it was not to be
What I don't understand is that Thunder Tiger is aware of the problem but doesn't incorporate the fix on new helis. Haven't changed mine yet but it should be in the mail box when I get home today.

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