keskiviikko 10. syyskuuta 2008

First "flight"

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:

I bought it from ebay, final cost after shipping and taxes was around 200€.

EDIT: here's (mostly) answers for my issues:

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