It's a fascinating concept to remove the compressor disks and allow the air compression to take place by it's own force. Simplistic yet completely genius at the same time.
I've never seen one fly. Only seen them on the ground. I was working at Edwards Airforce Base about a month ago and they have one.
Fresh Yosemite/Sierra timelapse - great images, but I find the whole thing too jerky, almost like a side show. Feels like 10 frames per second or less. Probably had to compromise between long exposures and more stars and smooth motion you'd get with more frames. Guess I'm spoiled.
Since the above invention was already eclipsed years ago when Jeremy Clarkson and James May drove to the North Pole on rubber tires, we're now focusing our attention back into orbit:
In the past 10 years, trains have hit five trucks that have gotten stuck on the incline and can't make it over the track. There are even more cases that didn't end with a crash.
We'll be back.
Verum audaces non gerunt indusia alba. - Ipsi dixit MCMLXXII