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HomeAircraftHelicopterBeginners Corner › Engine bogs down on throttle up
04-20-2009 08:00 PM  9 years agoPost 1
CUJO

rrApprentice

San Angelo, TX

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So once my rappy got light on the skids I noticed that the rotor rpm sounded like it was slowing down. Is this normal and will I get a higher rpm sound once I adjust the carb more?

Rappy 50 Titan, OS Hyper 50, Futaba 2.4 7ch.

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04-20-2009 08:47 PM  9 years agoPost 2
BarracudaHockey

rrMaster

Jacksonville FL

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Could be too much pitch, could be too rich, could be not enough throttle for the right pitch. Hard to tell without seeing it.

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

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04-20-2009 08:56 PM  9 years agoPost 3
CUJO

rrApprentice

San Angelo, TX

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I set the curves on the throttle and blades according to TT instructions so I figure those should be right. Since I have it at 1 1/2 turns on the mixture I figured if I lean out that might start to be a begining.

Rappy 50 Titan, OS Hyper 50, Futaba 2.4 7ch.

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04-20-2009 09:30 PM  9 years agoPost 4
playfair

rrKey Veteran

Rochester, NY

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Cuj, I don't know if I've offered this before, but you REALLY should find someone to help you out with your new bird. I've read through most of your posts, and you're going from an Axe to a Raptor 50. Seems like you're completely self taught.
You've been working on the Raptor for over 4 months. Your engine bogs on spool up, the skids wobble, your gyro is not cooperating, and you're scared of the blades.

I promise you that even if you need to drive 2 hours to find someone to help it will be worth it. I've gotten guys get to where you are currently at in a couple of evenings, plus they had the confidence to know everything was setup correctly.


The sky is our canvas

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04-20-2009 10:28 PM  9 years agoPost 5
CUJO

rrApprentice

San Angelo, TX

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I will when I have the time but with the wind and everything the way it is here and the availability of schedule I just find your guy's answers and help alot faster than having to run into town to ask another question.

Plust my hobby shop, or whatever you want to call it, dosn't have much in the way of anything and is planning to call it quit for a third time so what I learn from here is a lot more dependable than what I might learn otherwise. Will join the club eventualy but have to come up with the money and time to actualy get to go there.

Rappy 50 Titan, OS Hyper 50, Futaba 2.4 7ch.

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04-20-2009 10:58 PM  9 years agoPost 6
sliderx

rrApprentice

Meteghan,Nova Scotia, Canada

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Aside for some of the advice, which are also good, you can try checking your idle adjustment setting. If it is to lean it will cause the engine to bog down at liftoff. If you can get some help it is well worth the drive.

Raptor 50 V2

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