Flapping Blade Heliman Location: Notts UK
| Mechanical failures:-
My friend had the gears strip in his Milli elevator servo. It checked OK, lifted off and hovered, idle up, forward stick and BAM! full backwards on it's back at several MPH. He sidestepped-it and it thrashed itself to death next to him 
I've seen a main blade come off in flight (closely followed by the swash and mainshaft in the opposite direction ) but never a tailblade. I've heard about that though (particularly ECO 8) and I guess it's pretty 'interesting' for a while!
Woody blade coverings coming off is fairly loud and spectacular, but not life threatening.
Someone else: Swashplate separating in the hover at 30ft just resulted in a vertical drop and a pile of bits.
Tail linkage dropping seems common on Raptors. At first you think it's your tail boom support and you should be careful landing. Then it all becomes horribly clear what's really dropped off 
Battery fell out of someone else's Skyfox. That was on idle and -ve pitch, so we just let it run out.
Carb loosened on a Rossi powered F1 Carbon. That revved right up and he held it hovering for several seconds until the rod let go.
Plug failed on mine inverted one hot summer day. Whipped it over and landed it. If it had been anywhere less convenient, I'd have lost it.
Clutch screws backed out and stalled the motor. Again I was able to land it.
Tail drive gear on a friends Raptor 60 spun. Fairly comprehensive smash with that.
Short circuit on the gyro extension lead intermittantly killing the radio on another persons Raptor. Luckily, just glitched when the engine was started.
Another friend. OS70 melted the piston, it decided to do it at the least convenient time.
(I've probably overdone this post ) |