Cetaman
Captain
Flight distance : 2528264 ft
United States
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Aloha dundee,
This is the video I was able to use to get Vortex Ring State into Wikipedia on the Quadcopter page and quadcopters into the VRS page. The editors cut a couple other videos but this one was very clear. There was a lot of resistance to recognizing that VRS applies to quadcopters. First time I ever fought it out in the back "discussion" pages.
BTW, VRS is also known a "descent under power". No matter how much you try to climb out of it, it will not work. Only translating can get you out of trouble as noted in the video and some of the comments here.
The new DJI products have introduced tilt to the motors to reduce VRS. The P2s, up until the P2 v.3 had VRS problems. The firmware reduced the P2 descent speed to 2 m/s for that reason. The new P3 (and the P2 v.3) now have a descent speed of 3 m/s with the tilted motors.
Besides the Stealth H-60 in the BinLaden raid, the Osprey V-22 that crashed during certification testing had one of the rotors go into VRS. VRS is definitely something to be concerned about. But, I never did find propguards to have any effect one way or the other as some noted.
Aloha and Drone On! |
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