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Old 01-13-2011 | 01:48 PM
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Rob2160
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Default RE: new MSR defect ? please help!!


ORIGINAL: Erbid

Ohiowoodsrider250,

I'm presently an mSR only guy, building my first 450 class heli. I don't have the transmitter that comes with the mSR, but may be able to help anyway.

In an open area, (I get by with just a couple feet in each direction) get to know the throttle. Put the mSR down, bump the throttle to 1/2 stick plus a bit to "launch" it to 2 feet, 1/2 meter or so then throttle back to about 1/2 throttle and adjust to keep it between the ceiling and the floor. Now set it down, before it gets to an obstacle! Just shutting the throttle down will usually do fine (and it's a good reflex to have when hitting a solid object. It's light enough to bounce off about anything w/o hurting itself if the motor is off.

Note its behavior, starting with spinning. If you touch the sticks (other than throttle) try the rudder only (at first) to counteract the spin. You will know which way to trim by which way you push the stick to stabilize.

If you take off "gently" (don't try it) it will dart to the left or fall over to the left (if on carpet). Just whack the throttle up to about 1/2 way, maybe more, and try to regulate the altitude.

Below a foot or so (2 feet is better) things can get unpredictable. So, like the "pop up" take off, make your first landings just a "power off" at 2 feet. Maybe power off at 1 foot or less if you start to feel confident.

Let us know how you get on.

Erbid
Yes, it darts left because of the tail rotor thrust.. It can be minimised by holding some right cyclic and powering up fairly quickly.. it needs to be airborne though so it can tilt slightly right to fully compensate for the tail rotor sideways thrust.. exactly the same in a real helicopter..

In this video below you can see the right hand helicopter skid (on the left as you see it in the video) lifts off first... All conventional helicopters will hover with one skid lower than the other....

[youtube]http://www.youtube.com/watch?v=G2XCdRf3bv4[/youtube]