Tricopter maintenance

My poor Tricopter has now suffered over 20 crashes and it’s time to do some maintenance on it.

I replaced the two front wooden arms which had snapped after a couple of crashes and just jammed in place to be able to keep flying. I also decided to replace the motor bells, shafts and propellers to make sure that it will fly silky smooth once again.

This week just got worse

This week just keeps on getting worse. After repairing the TriCopter, I went out this morning to the local park with the intention of making a FPV Tricopter video. Since I’ve got some vibration issues from the two previous crashes, I decided to use a “normal” CCD camera instead of the CMOS HD camera. CMOS cameras are sensitive to vibrations due to their “rolling shutters” which creates what is know as the “jello effect” (here is a video showing the difference between a CCD and a CMOS sensor). An other reason was that I expected to crash, and didn’t want any more corrupted videos due to the camera losing power or the memory card popping out.
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Having a bad week

I’m having a bad week. My first tricopter FPV flight was kind of a disaster and yesterday I was out doing the maiden flight of the FPV FunJet V2.

Having some sense I decided to maiden the FunJet without the FPV gear. I did my usual maiden preflight check. When I came to the movement of the control-surfaces my brain took a holiday. For some reason I couldn’t see if it rolled to the right or left when I moved the stick. I thought they were inverted but to make sure I was thinking right I asked the wife. She also thought that they were inverted so I reprogrammed the transmitter. I picked it up, gave it 3/4 throttle and threw it straight forward. The funJet torque rolls on launch which I’m pretty used to, so I moved the stick to the right and BANG! Into the ground she went.

My tip of the week is to not only double check that everything moves in the right direction, but to make sure you don’t forget which way that is.