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HelicopterMain Discussion › self starting engine
03-13-2003 04:35 AM  14 years agoPost 1
drtoothfixer

rrApprentice

Richland, WA

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Ok, I was helping a friend today with his new R50 V2. He has a TT 46 engine. We had done a couple of test runs, and had the engine flame out. We flew again, but again a flame out. We put it on the bench, talked about what the problem may be, and got ready to start it up again.

He put the glow starter on the remote glow, and the engine started, with NO FIELD STARTER! What are the odds of that ever happening again??? It must have been just past TDC and full of fuel when that glow lit up!

Anyway, see if it ever happens to you! I feel like one of the lucky ones!

Trevor

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03-13-2003 04:43 AM  14 years agoPost 2
tailwhip

rrVeteran

Southern WI

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I have never had that happen but,I have heard of it happening.
I have seen a few engines In cars and in my Heli Run Backwards!!

Dennis M

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03-13-2003 04:53 AM  14 years agoPost 3
omurru

rrVeteran

Australia

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I had engines on planes run backwards all the time, just dodge starts, it's weird when the air is coming torards you

Never heard of an engine firring by it'self, I got a few I can put a glow started on and give a gentle spin backwards and they fire up, that's pretty cool to do especially when you have onboard glow

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03-13-2003 05:07 AM  14 years agoPost 4
helimike77

rrApprentice

La Habra, CA

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I've had it happen on a plane once. The engine stalled after it had just started. Left the glow starter on and started to turn the prop to where the starter could get a head start and ...doh! That wont happen again.

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03-13-2003 06:39 AM  14 years agoPost 5
hobbyboy

rrApprentice

Puyallup,WA

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auto start

I have had them start with no glow heat on. It happened on a King Cobra while clearing out a flooded engine at full throttle. Cost me a few wacks on the legs as I was geting away from the heli(Yes, I was holding on to the head). I have had 4-stroke airplane engines fire but not run when hooking up the glow plug. I guess you have to assume these things can always run.

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03-13-2003 09:11 AM  14 years agoPost 6
FinnDave

rrElite Veteran

Kouvola, Finland

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Happened to me, once, on an OS 50 in a Kalt Cyclone. Bit of a shock when it starts before you reach for the starter, hope you had the throttle back before putting the glow ignitor on!

David S., Kouvola, Finland

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03-13-2003 10:36 AM  14 years agoPost 7
Mr. Mike

rrApprentice

Vienna, Austria

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Hi!

Same thing happened to a friend of mine. The engine was a OS 61 SX-H WC and it sarted right after the glow starter was put on. Thank god the throttle stick was at idling position. But it could have been the other way around. Be aware of that especially when running one of the Big Blocks!!!

Best regards
Mike

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03-13-2003 01:24 PM  14 years agoPost 8
Roger Hamilton

rrApprentice

Surrey, England

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I had a Moki 180 start on glow application, but backwards, which was interesting, certainly makes you careful when its swinging a 20x8 prop

My first (rich) flight with an OS91sxh was interesting, the engine blubbed a bit at about 30 feet then went into reverse. Thought it had stripped a gear and autoed down, only to discover it was running backwards. Funny thing, it ran smoother backwards than it ever did right ways

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03-13-2003 01:57 PM  14 years agoPost 9
Angelos

rrKey Veteran

nr Oxford, OX11, UK

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It would be interesting to exploit this for auto start on demand. For example, you could move the piston to a specific position, turn the glow plug power on, wait for the temperature to raise, inject some fuel in the cylinder with a solenoid pump and off it goes. It could be all microcontroller controlled. I just wonder if a predictable response could be achieved.

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03-13-2003 02:22 PM  14 years agoPost 10
joeyM

rrApprentice

langhorne, pa

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anytime the engine is still hot--it could fire up----be careful--i didnt know this could happen--it never happened to me but a few of the old timers at my field said that they seen it happen also so be careful.......joe

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03-13-2003 02:51 PM  14 years agoPost 11
icleanwater

rrVeteran

Boise, ID.

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ever see the movie Christine........

Guess who's back, back again...

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03-13-2003 04:08 PM  14 years agoPost 12
Kurt64

rrVeteran

Salladasburg, PA

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I had that happen with a Saito 150.....nearly removed the skin from my fingers like a glove! Thank God I was in my own back yard so first aid was close by. I never had it happen with a heli though.

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03-14-2003 04:07 AM  14 years agoPost 13
drtoothfixer

rrApprentice

Richland, WA

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plank

I had my engine start in my plank with the glow on, and just by moving the prop a little. Didn't get my figers, though! that heli was just too eerie!

Trevor

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03-15-2003 02:33 AM  14 years agoPost 14
uh1b1

rrApprentice

usa

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i had this happen twice to me with a os .50 in the same day when hooking the glow battery up.

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03-18-2003 02:43 AM  14 years agoPost 15
crash1953

rrVeteran

Washington State

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I used to have a saito 90 twin that would almost do that on demand without power to the glowplug at all ..It would always start the second cylinder without power to it .. The first time I had it do that I almost ate the plane ..All I did was turn the prop while priming it ...

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