I went to local football field to test-fly the helicopter. Yes, i broke it, although it never took off.
I should have spent more time with googling how to use the controls. This one is has 6 channel radio. It has 2 extra trim knobs and some kind of toggle switch. I didn't know what they do. More about them when i have done my googling. My previous "non-toy" helicopter was fixed-blade with 4ch radio. I was able to fly it without problem.
First i noticed that the rotor spins up VERY fast when giving any throttle. It's so strong that it turns the nose 45° when starting. After the initial jerk the throttle works like expected. Except - it won't take off even with 75% throttle. I know that real choppers have constant RPM and adjust lift with blade AOA. I have no clue how to do that with my RC chopper.
I also noticed, that switching the mystery switch on left spun up the rotor slowly - maybe it is some kind of startup switch? I'll find out later.
Ok damage pic:
The main gear was stripped, probably by the violent motor starts. I already ordered new one from dealextreme for $6. This (and 2-5 days of waiting) is the cost not reading the google first (the fine manual had nothing about the mystery controls).
Oh, it's a Belt CP: http://www.rchelicoptershop.com/catalog/ek1he014a-esky-beltcp-yellow-rtf-version-p-300.html?gclid=CJax48Dw0ZUCFQsZQgodkUrihw
I bought it from ebay, final cost after shipping and taxes was around 200€.
EDIT: here's (mostly) answers for my issues: http://helifreak.com/showthread.php?t=68558