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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › how is the best way to turn off/kill the motor?
04-02-2009 10:09 PM  9 years agoPost 21
wowowee

rrNovice

too cold here

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i use the clamp on mine
doesn't that lean the engine..which is a bad thing..

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04-02-2009 10:14 PM  9 years agoPost 22
helical

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Bowling Green, KY

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Lean is bad when it causes pre-ignition and/or too much heat. Clamping the fuel line to kill the engine does neither.

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04-02-2009 10:50 PM  9 years agoPost 23
dave75d

rrKey Veteran

Jacksonville, FL

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Just hit the ground really really really hard
tried that, lost the battery, throttle servo hit max, and ran max rpm's till it blew the clutch, housing, fan, etc.
i dont recommend that method.

ten grand in helis and all i can do is hover

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04-02-2009 11:39 PM  9 years agoPost 24
PJRono

rrKey Veteran

Minnesota, Ya!

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But it's a whole lot more exciting and the motor did shut off!

If you skip me I can't play!

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04-03-2009 12:16 AM  9 years agoPost 25
dave75d

rrKey Veteran

Jacksonville, FL

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and the motor did shut off!
got a good point there, it did.

ten grand in helis and all i can do is hover

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04-03-2009 01:17 AM  9 years agoPost 26
Eagle2bravo

rrVeteran

Out flying somewhere

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Yep, I just clamp the fuel line and let it die.

T-rex 600n super pro , Trex 450 se, Gaui 200, Trex 500, Blade cx, . "If ya plant corn, ya get c

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04-03-2009 01:57 AM  9 years agoPost 27
30636086

rrKey Veteran

Tacoma, WA

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No one has mentioned "water!" Lol

It will shut everything!!!

I dont suffer from mental iIlness, I actually enjoy mine!

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04-03-2009 02:15 AM  9 years agoPost 28
RayoVac

rrVeteran

raptor4ever is a THIEF!!!

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And you don't have to worry about the engine or electronics overheating.

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04-03-2009 02:29 AM  9 years agoPost 29
DANBOONE

rrApprentice

Plymouth, IN 46563

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Yea, putting it in the lake should kill the motor.

Thunder Tiger Rep

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04-03-2009 03:54 AM  9 years agoPost 30
PJRono

rrKey Veteran

Minnesota, Ya!

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Hey I resemble that, I mean I've done that!

If you skip me I can't play!

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04-03-2009 04:02 AM  9 years agoPost 31
cstoneman

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Colorado

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If all else fails, a .45ACP will work.

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04-03-2009 05:42 AM  9 years agoPost 32
30636086

rrKey Veteran

Tacoma, WA

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Hey I resemble that, I mean I've done that!

I dont suffer from mental iIlness, I actually enjoy mine!

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04-03-2009 11:10 AM  9 years agoPost 33
PJRono

rrKey Veteran

Minnesota, Ya!

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Yup, it happened. Into the pond she went after a piece of the YS80 piston skirt broke off and wreaked havoc. It bent the flybar which took out the windscreen and lost the servos which were 5 years old, so it wasn't too bad really. Worst was that the pond had a mucky bottom and you couldn't walk on it without getting sucked in!

If you skip me I can't play!

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04-03-2009 11:29 AM  9 years agoPost 34
Dr Lodge

rrElite Veteran

Guildford, Surrey - UK

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Use a mix
I only fly electrics on my DX7, but I've programmed a mix to one of the switches (front right) that effectively cuts the throttle. Don't see why this shouldn't work with a nitro. The danger though is that this switch will cut the engine no matter what position the throttle stick is at, but I've not yet accidently moved it while flying.

Vibe 90, Vibe 50, Vigor CS x2,
Dyna-x, Knight 503D, Logo 10,
TRex 500, Furion, Gaui EP200

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04-03-2009 04:09 PM  9 years agoPost 35
AaronJohnson

rrElite Veteran

mason,MI

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I set up a mix to the gear channel on the DX7 to kill the throttle. It will only kill it if the throttle is near the idle position. You cant kill it in idle up on hold. I kill it with the switch and then I pinch the line to fill back up with fuel. At the end of the day, I run the engine dry. No problems with flooding or starting at all using the throttle kill switch.

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04-05-2009 01:04 AM  9 years agoPost 36
aadams1278

rrApprentice

Wilson, NC - USA

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onequick96gt,

how do you set this mix up? i'm also using the dx7 and i like the idea of a switch instead of the throttle trim. also i like that it won't shut off unless it's near idle.

the only way i can think of to do this is to set a throttle to throttle mix and when activated, it modifies the throttle position to X% less than the throttle's current position? so then it will only close if the throttle is low enough. i've tried something like this before, but i found that you have to keep playing with it to get the number set right, and then you gotta be careful not to overdrive it.

Dr. Lodge,
i'd also be interested in how you set it up so it shuts off no matter what the throttle's position is. THAT'S the one that i can't figure out how it's done.

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04-07-2009 03:49 AM  9 years agoPost 37
aadams1278

rrApprentice

Wilson, NC - USA

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ok, i got the mix figured out the way onequick96gt explained it. works well on my plane.

i still want to hear Dr. Lodge's way though.

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04-07-2009 03:58 AM  9 years agoPost 38
AaronJohnson

rrElite Veteran

mason,MI

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aadams1278, You are correct. Set a TH to TH mix. Use whatever percent it take to just close the throttle with the stick at idle. Mine doesnt over drive b/c I set it up to just close the TH when the trim is up at the normal idle position. As long as you dont use the mix when your trim is all the way down then it wont over drive. After all, we only use it for a brief second to kill the engine and then turn it off. I use the Gear channel switch to activate it. (personal preference)

Hope this helped. I just hated using trim to kill the engine. It annoys me, always has.

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04-07-2009 04:19 AM  9 years agoPost 39
devious17

rrApprentice

Malaysia

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Clamping the fuel line - stops the engine and also ensure you dont get fuel into the engine while refueling and cause hydrolock.

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04-15-2009 02:09 PM  9 years agoPost 40
rupps5

rrApprentice

columbus ohio

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I have a DX7 and use a throttle to throttle mix on the gear channel to kill the motor. Just flip the switch and it turns off.

Jeff

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HomeRC & PowerAircraftHelicopterEngines Plugs Mufflers Fuel › how is the best way to turn off/kill the motor?
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