Sounds like you may be stalling the plane, trying to climb too fast or too soon.
Take-off from the ground should involve a long run out and a gradual climb. A sudden up elevator will cause a stall and you will drop.
Hand launch has to be at full power and LEVEL. Thow it up and you will stall and crash.
<div>> Throwing up will make you sick - read from the first post</div><div>
http://www.rcuniverse.com/forum/m_32...tm.htm#3708346
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