~~Offical FPVLab Hall of Shame~~

[kev.au]

Do it, there's no gap i can't fill

[aaron_gx]

More like 20 wrecks. I lost count. Lots of bad launches, flying too low, ect. Good to know you're ready for some turn and burn video. We really need to get together and fly. Apparently neither of us has any regard for our aircraft. Or at least it comes second to our adrenaline addiction

There are a few of us here that know the real FPV is less than 25 feet off the deck with lots of objects to dodge Maybe I should start a dare devil stunts thread?

-Alex

Good thread idea. However, I might have to fill up at least 2 pages worth of stuff. Time for a "Best of pt. III" edition.

I am ready to tear it up for sure. Just gotta get my spare time/motivation/good weather synchronized! And we definitely need to do some flying sometime, alex.

[kev.au]

Make the rules very clear...

#1 100% throttle 80% of the time
#2 Under 25ft alt
#3 no EZ stars...
#4 lol.

[pecanpatch]

A series of mistakes.... and I find myself hitting my first powerline after 40 years of flying.... Dote! (no sparks, danggit)


View this video on Vimeo

[sim_io]

That sucks man, how did you only break a prop with a couple of scratches?

[Vitamin J]

Crashed into a tree while shaking down my new wing.


View this video on YouTube

[Windbreaker]

Was doing more vibration testing on my helicopter this morning when I made a rapid descent.

The "vortex ring effect" caused a bit of shaking, as expected. What wasn't expected was a sudden series of oscillations that caused the SK720 to go a little nuts and flipping the helicopter completely inverted.

And I couldn't get it right-side up again! The SK-720's self-leveling was doing it's job and wouldn't let me get it rotated the other way around.

It was about a hundred feet up and heading down fast. And somehow I realized I needed to pull the collective DOWN!

So I did. Just in time.

Going full down on the collective gave me about 3 degrees negative pitch with zero power.

The heli thumped upside-down, then flipped back onto its skids at a full stop. I took a look at it, and there was just a slight nick at the base of one of the rotor blades. I turned the main rotor head, and the shaft wasn't the slightest bit bent!

So I carefully powered it up, watched, and it was OK. So I flew it a second time.


View this video on YouTube



I had turned "Lock Cyclic Gains" off on one of the banks to tune the cyclic gains. So on the next flight I set it about 1/3 lower thinking that would be enough to prevent the oscillations.

I took it up again, and tapped the cyclic forward as part of the test routine. There was the oscillations again!! And this time the helicopter went down sideways. Well, that was it for the day. Two crashes was more than it could take.

[Kevinv033]

Was that an inverted auto rotation landing? That's gotta be a scary moment! Must be muscle memory to flip the throttle-hold! Sucks that your heli is downed. I'm surprised it didn't bend anything on that first crash.

[Windbreaker]

Was that an inverted auto rotation landing? That's gotta be a scary moment! Must be muscle memory to flip the throttle-hold! Sucks that your heli is downed. I'm surprised it didn't bend anything on that first crash.

Actually not quite an autorotation. There was power until I brought the stick all the way down, at which point there's no power at all. I didn't even have time to hit throttle hold. In fact, in the second crash I didn't hit TH until after it was down. Stripped the main gear, tore up the blades, bent the tail boom. Two servos had damaged gears but I had programmed in "overload" protection using a servo programmer, and that prevented them from burning themselves out after they got jammed.

[Kevinv033]

Actually not quite an autorotation. There was power until I brought the stick all the way down, at which point there's no power at all. I didn't even have time to hit throttle hold. In fact, in the second crash I didn't hit TH until after it was down. Stripped the main gear, tore up the blades, bent the tail boom. Two servos had damaged gears but I had programmed in "overload" protection using a servo programmer, and that prevented them from burning themselves out after they got jammed.

it looked like an auto landing came down relatively soft considering!

ugh...that's a terrible crash. heli crashes like that have the most insane sound...almost like an explosion. sorry to hear about that. i hope your expensive electronics are intact...i know that when i crash my 600 i almost cry bc i know i am going to be digging deep in my pockets to get her back up. i started stockpiling parts, but haven't flown it since early summer...

well, i hope you get her back together soon.