I ordered some CF props from RCTimer which I installed and flew for the first time.
I was filming a guy flying his phantom air-2-air.
I had been talking to this guy a lot about the dangers of relying on the electronics, even in a "stable" machine like the phantom, however he didn't seem to believe me then he tried to fly over me while I was in pos-hold mode, I didn't say anything but warned him that barometers are not infallible and being a windy day + the propwash can cause things to "bob". He still wanted to fly...
His phantom "reversed" into my discovery and his came off second best, mine fell a little but recovered nicely (thanks pixhawk). The CF props must have chewed up his props nicely. The thing fell like a rock onto the ground and blew up into a million pieces. Gimbal destroyed, motos bent, case cracked, even the micro-sd card was cracked.
Poor guy was devastated. I have a few chips out of the props.
Lastly here is a quick video of the crane outside our apartment in the snow.