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HelicopterMain Discussion › Man the 450 really is the retarded step child
10-22-2009 12:42 AM  8 years agoPost 21
Dilbeck

rrElite Veteran

Springdale Arkansas

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Honestly, who has not bent something and didnt have that spare part on hand? but it was the start of the day and there was no way you were going to cash it in for the 3 to 10 day ride waiting for the mail? Ive bent many parts and looked in my stash and thought damn! Ive straighten everything from a flybar to a main shaft just to fly again, No big deal.... VooDooX, "The drama continues"!!

Clint

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10-22-2009 12:54 AM  8 years agoPost 22
ruddernate

rrKey Veteran

sulphur,Ok.

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its called metal fatiuge it will eventually catch you once you bend/bend back the same piece enough times
i've bent many a boom back straight. metal fatigue doesn't come into play with a minor bend like we're talking here. what are the odds the next one isn't going to take the boom out completely. we only usually get lucky enough to bend the boom back once or twice. for metal fatigue to kick in it would have to either be creased or bent back and forth more than a couple times. bend that sucker straight and fly it like you stole it. i like my helis in tip top as well but i'm not to good to bend back a boom now and then. if it looks like a horseshoe now that's a different story. you'll need a longer socket for that.

fly it like you stole it

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10-22-2009 01:05 AM  8 years agoPost 23
QuantumPSI

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Atlanta, GA

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We all know VooDooX is just saying that because he is worried about Quantum's well-being, right?
HA! That'll be the day!

...now where was I, dh/dt = BS-dx/dt
I will fly you forever... till earth do us part

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10-22-2009 01:15 AM  8 years agoPost 24
bstock

rrKey Veteran

Easton, MD.

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Quantum... did the same thing to my 450 just recently at the last funfly. Flybar too.

Both were bent ever so slightly.. and in bending them back I didn't compromise anything... but time. I sure wasn't going to spent more of the day building... versus talking or flying

Main shaft, feathering shaft, a little bend here... a little bend there... good to go... back to flying.

I do have an ever sooo slight bend I need to get out still... will just replace it and be done with it... but that is a project for the cold weather that's coming.

Voodoo - I couldn't agree more... if it is questionable... replace it and be safe. Certainly not the same as glueing blade roots though.

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10-22-2009 09:15 AM  8 years agoPost 25
dialarotor

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Traverse City, Michigan

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So now instead of "checking your 6" , you can "check your 5:45 or 5:30" depending on how bad the boom is bent.

RapRexSynLog Pilot

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10-22-2009 11:27 AM  8 years agoPost 26
Seablade

rrKey Veteran

earth

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so as long as it doesn't look like a "Crazy Straw" you good to go! Lol

"Vini, Vidi, Velcro"

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10-22-2009 01:12 PM  8 years agoPost 27
MartyH

rrProfessor

USA

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The 450 is a good size for surviving crashes. It seems to be a sweet spot in materials that allows good power to weight while offering better than average crash survival compared to larger helis. I dont own one because I dont care for the way they fly but there is no denying how well they survive to fly another day.

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10-22-2009 02:33 PM  8 years agoPost 28
Swoop

rrElite Veteran

Newark, DE USA

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Pink rider

Chris
X50, B320, Radix, Spartan
Titan,Kasama,MP5,Radix,JR770
Trex450SE,MavrikkG5,Phoenix35

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10-22-2009 02:58 PM  8 years agoPost 29
GyroFreak

rrProfessor

Orlando Florida ...28N 81W

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On my 450 I've straightened the boom, and flybar. I even straightened a main shaft, just for the challenge but that is really not worth it.

I think about the hereafter. I go somewhere to get something, then wonder what I'm here after ?

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10-22-2009 02:58 PM  8 years agoPost 30
VooDooX

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San Francisco Bay Area CA, US (San Mateo)

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VooDooX, "The drama continues"!!
lol what are you implying here
(DOOD) Since it's on the trailing edge and not quite on the root itself, I might try and fill that in with thick CA or epoxy. I think it might be fine.

If you dont want 'em, I'll take 'em.
LOL!!!! ^^^^ thats dood telling somone to ca a blade root i knew you guys were crazy!!!!! "i think it might be fine" lol what does that even mean

http://www.runryder.com/helicopter/t548639p1/

Velocity 50 "99.9999999999999% of an atom is empty space." also 01001000 01001001

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10-22-2009 03:07 PM  8 years agoPost 31
Pellicle

rrNovice

New York

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Staightening boom shaft etc
Metal fatique in the tail boom is quite unlikely to occur with minor tail strikes that are repairable. The paltry force of the 450 tail is small compared to the force required to reshape the boom. Signs of fatique that the tail could manifest as failure would be quite evident. I have repaired a boom many times (maybe 20)when I could not get new tail booms due to an apparent supply shortage. When I received new booms I replaced but due to cosmetic concerns. Same for the main shaft. I actually have a surface plate, jig and gauge I use to stratigten shafts on a regular basis. If the shaft is out up to 10 mils I stratighten them and have done so for maybe hundreds of shafts of mine and freinds and never had a failure. I use hardened shafts which actually are more brittle and would tend to fracture. While Voodoo is technically correct metal fatique can occur, in these cases the chances are extremely unlikely to the point other failures and dumb thumb syndrome is a more likely scenario.

As to straightening the small head parts in the 450 I would be extremely careful as I have seen metal fatique here. Some common sense regarding the amount of bend and careful inspection before use are in order. The 450 blade grip arms are an example of a part that is problematic to repair if bent significantly.

Common sense and careful inspection are the key elements. Such paractices keep uus flying and or within budget and can and routinely are done safely.

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10-22-2009 03:49 PM  8 years agoPost 32
Richardmid1

rrProfessor

Leeds, England

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Booms are supported by the boom supports remember. As already said as long as its not kinked its fine. If I staighten a boom after a crash I always take it off anyway to make sure its straight.

60% of the time, it works every time!

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HelicopterMain Discussion › Man the 450 really is the retarded step child
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