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HomeAircraftHelicopterAlignT-REX 700N › £500 Crash
10-25-2009 11:24 PM  8 years agoPost 1
mont_blanc

rrApprentice

UK

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So there I was enjoying a lovely Sunday morning in the garden, just setting up a new 91HZ in my 700.

All go well and then a bolt falls off the exhaust and the heli pile drives into the ground digging a hole in the lawn.

Bug*er!

£500 worth of damage, too much to list.

fly a rubber heli - it's cheaper!

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10-25-2009 11:45 PM  8 years agoPost 2
1WOLFS1

rrApprentice

, vt usa

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how did a bolt falling off the exhaust , cause your bird to go down?
sorry for loss.just trying to picture.

wolf

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10-26-2009 12:06 AM  8 years agoPost 3
kaotik

rrApprentice

upper darby pa

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that sucks sorry for your crash now its time to rebuild and get in the air again but i would also like to know how it happened

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10-26-2009 12:23 AM  8 years agoPost 4
Heli Davey

rrApprentice

springfield,mass

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sorry for your crash!!!i also want to khow how a bolt falls of the exhaust,and causes your heli to go down?

*TREX 500ESP*TREX 600NSP*TREX 700N LE*

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10-26-2009 12:36 AM  8 years agoPost 5
Mapleleafs

rrVeteran

Ontario, Canada

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I really doubt its 500 EUR'S....how could that much damage be possible if a bolt caused you to crash....

Vbar Trex 700N, Vbar MSH Protos 500, Vbar Logo 400

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10-26-2009 01:08 AM  8 years agoPost 6
AgentOrange

rrVeteran

Jacksonville, Florida

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that sounds like my weekend. sorry for your luck

Trying not to put them in the dirt.

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10-26-2009 01:14 AM  8 years agoPost 7
Sonic88

rrVeteran

Murfreesboro, TN

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500 EU?! Sounds like a rekit to me. I don't understand how a loose muffler will take it in though? At the worst the engine will lean out. Yes it is bad, but to cause a crash of that level? Seems like that may not have been the true cause. Can you give more details on the incident?

Procrastinators of the world unite ... tomorrow.
AMA #: 912822

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10-26-2009 01:43 AM  8 years agoPost 8
xeon1000

rrApprentice

florida

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maybe the bolt hit the blade while inverted?

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10-26-2009 02:40 AM  8 years agoPost 9
Eric L

rrApprentice

Minnesota

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still wouldnt be 500!! boom, blades, tt, gears, tail blades, flybar, main and feathering shaft...even if the motor was shot here, still shouldnt be that high

Team KingKongHobbies.com-----Team Synergy

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10-26-2009 02:42 AM  8 years agoPost 10
Eric L

rrApprentice

Minnesota

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pipe looks fine in the pics too...

Team KingKongHobbies.com-----Team Synergy

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10-26-2009 03:06 AM  8 years agoPost 11
mont_blanc

rrApprentice

UK

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here's the damage list:

Tail tube & torque tube
Tail housing & Spindle
Tail Boom Mount
Both sets of blades
Both Fins
Landing Gear
Head Yoke (if I want to attach the button again)
Main Shaft
Main Shaft Bearings
Main Gear
Feathering Spindle
Half the head links
Tail Servo (9256)
Lipo Battery
Clutch Bell (Probably)

Just over £400 so far...

Don't know how a loose bolt caused the crash but I watched the pipe just tilt and then the heli dug a hole (scarred my lawn for life)

fly a rubber heli - it's cheaper!

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10-26-2009 03:32 AM  8 years agoPost 12
Eric L

rrApprentice

Minnesota

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is the tail servo shot?!? or just gears?

Team KingKongHobbies.com-----Team Synergy

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10-26-2009 05:26 AM  8 years agoPost 13
koppter

rrApprentice

Virginia

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a loose muffler bolt can cause the servos to start behaving erratically (actually it is the muffler banging around that causes it) - i had the same thing happen today, but what I noticed first was that the tail was jumping around, the cyclics were okay. a couple of circuits later and it made the sound of a unmuffled exhaust. set it down, killed the engine, no damage, but one screw was gone and the muffler was hanging down at a shallow angle. sorry to hear about yours....a friend of mine suggested no gasket, longer screws (50mm) with a lock nut, and frequent checking.

try a longer screw for the button, and if that doesn't work, CA it in.

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10-26-2009 11:57 AM  8 years agoPost 14
jasnlemons

rrVeteran

upstate, SC United States

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I have had a bolt loosen on my 700 twice on the pipe and it didn't cause any problems to the heli other than the motor leaning out. I will bet something broke in the head or something. I was inverted and had a quick UK canopy thumb screw came out and hit the blade. Made a bad sound but after landing only made a small place in blade.

If the bolt looosen and the motor leaned out and die and then a bad auto then that might be more like it.

Fly it like you stole it!
Stick Banging Expert

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10-26-2009 12:25 PM  8 years agoPost 15
mont_blanc

rrApprentice

UK

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It is very possible that one or two of the links that connect mixing arms to the swash broke as well, because the plastic link ends are snapped, but still on the swashplate. Possible that vibration from the exhaust caused that happen. Needless to say I have bought the Quick UK upgrades, and will be converting to flybarless anyway (so fewer headlinks to go wrong).

Align's plastics are not great quality, unlike say Hirobo.

I want a heli that bounces!!!

fly a rubber heli - it's cheaper!

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10-26-2009 12:47 PM  8 years agoPost 16
colsy

rrElite Veteran

Cambridge, UK

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Was it vibrating prior to self destruction ?
I want a heli that bounces!!!
Dont we all.

col.

Only Quote From Experience.

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10-26-2009 01:03 PM  8 years agoPost 17
mont_blanc

rrApprentice

UK

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Was it vibrating prior to self destruction ?
No, very smooth.

fly a rubber heli - it's cheaper!

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10-26-2009 02:36 PM  8 years agoPost 18
jschenck

rrProfessor

La Vista, NE.

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Head Yoke (if I want to attach the button again)
Tail Servo (9256)
Save yourself a lot of money and just don't put the head button on. It's there just to break the main grips anyway!

Also if it's just a set of gears for your 9256 you can get a set of 9254 gears and replace the plastic gear that stripped in that servo for way less money. There is even a 5 pack of that one gear that should last you the lifetime of that servo.

http://www3.towerhobbies.com/cgi-bi...p?&I=LXPHL9&P=7

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10-26-2009 05:59 PM  8 years agoPost 19
colsy

rrElite Veteran

Cambridge, UK

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No, very smooth.
Doesnt add up..!!

Maybe a link failure on the swash upwards.

weird

col.

Only Quote From Experience.

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10-27-2009 02:24 AM  8 years agoPost 20
jasnlemons

rrVeteran

upstate, SC United States

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I had the quivk uk upgraded links on mine but went back to the align newer plastics. The -1 stuff is a lot better and the linkages for the aalign are the correct size so your swash plate tool will set on it correctly. With the quick UK the tabs stick up and interfere with it. It was not a good up grade for me.

Fly it like you stole it!
Stick Banging Expert

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HomeAircraftHelicopterAlignT-REX 700N › £500 Crash
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