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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Does pumping your heli cause parts to come apart?
07-19-2006 03:59 PM  14 years ago
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Hummingbird3D

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California

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Does pumping your heli cause parts to come apart?
I've been doing that pumping move with my 90 and a little with the 50. Sometimes when the engines are running real good I can make the 50 go up and down or even left and right hard,and although the heli is still in one piece, I'm just curious if anyone knows that if doing this move causes parts to separate, like the head shearing off or something...
Fly It Like You're On The Simulator!
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07-19-2006 04:06 PM  14 years ago
colin8

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Phoenix, AZ

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Bend over and pick up the heli by grasping the rotor blade grips, one in each hand. Then, violently lift and drop the heli as fast as you can. The forces you feel are transmitted directly into the mainshaft via the attachment bolt. In actual flight, there are many more forces acting on the machine, especially in bending the feathering shaft. Any 3D heli should be designed to withstand these forces and hopefully parts will not come apart. But, you are placing major loads on the components.

--Colin--
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07-19-2006 04:20 PM  14 years ago
PaulJC

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Hertfordshire UK

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Any well built, well maintained heli will be able to cope.

However any stressfull manouver will cause increased wear and increase the chances of a possible componant faliure
Re-entering the atmosphere...
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07-19-2006 04:37 PM  14 years ago
Pistol Pete

rrProfessor

Seffner, FL

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mainly due to lack of L O C T I T E~~Enjoying the hobby one flight at a time~~
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07-19-2006 05:57 PM  14 years ago
airthumper

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Sacramento, CA

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I saw once a guy pumping his heli and it just quit. The clunk line split and came off the nipple of the tank, I heard that the clunk lines do that on a regular basis.I Fly So Good: BECAUSE I'M SPONSORED! ...what's this bill here?
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07-19-2006 06:58 PM  14 years ago
PaulJC

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Hertfordshire UK

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I heard that the clunk lines do that on a regular basis.
Yep, no matter what your flying style, make regular replacements part of your maintainance schedule
Re-entering the atmosphere...
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07-19-2006 07:02 PM  14 years ago
DenisS

rrKey Veteran

england

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and make sure your battery is well secured. This is a heavy item and has a lot of kinetic energy so changing direction quickly can cause it to come loose. fast piros will do the same thing. But as was pointed out, you ARE maintaining the heli properly anyway, aren't you?
Denis
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07-19-2006 07:06 PM  14 years ago
Furious Predator

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Kitchener, Ontario, Canada

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simple answer....If its a rappy, then pumping your heli will last 3 seconds before there are no parts airborn to pump Shawn
Team Leisure-Tech
Team HelixRC
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07-19-2006 07:50 PM  14 years ago
airthumper

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Sacramento, CA

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Yes, I do the pre-flight thing.

As a matter of fact I think I'll create a check list as well. Does anyone have a list already?
I Fly So Good: BECAUSE I'M SPONSORED! ...what's this bill here?
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07-19-2006 11:37 PM  14 years ago
Yug

rrMaster

UK. Herts

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The flybar is one of the 1st things to fracture; usually as it exits the birdcage.Vegetable rights and Peace
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Home✈️Aircraft🚁HelicopterHelicopter Main Discussion › Does pumping your heli cause parts to come apart?
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