4 ms·
Yay! Cool that they made it :) The video feed had a "university team" feel to it that was sort of unexpected and nice :) I was surprised to see the tack sharp
by Torkel 5y ago
Yay! Cool that they made it :)
The video feed had a "university team" feel to it that was sort of unexpected and nice :)
I was surprised to see the tack sharp shadow on the image from the downwards facing navigation camera. My thinking was that the rotors needed to spin way faster on this drone than on a drone on earth, because of how thin the atmosphere is on mars. But the sharpness seems to indicate that the rotor speed is perhaps all that different! Or perhaps the whole thing is just so light that there is not so much mass to lift up?
- eddyg 5y agoThe two rotor blades are just under 4 feet long, and spin in opposite directions at 2,500rpm. The rotor tips are moving at about 2/3 of the speed of sound on Mars. (For ref, Ingenuity weighed 4 pounds on Earth, so about 1.5 pounds in Martian gravity.)
- Torkel 5y agoGood data! Nice how martian gravity makes things lighter. If I'm doing the math correctly I get to to be an exposure time of around 0.1-0.5 ms. Fast!, but not unheard of fast :)
- JKCalhoun 5y agoYeah, lighter but an atmosphere so thin it's harder to get lift. I wonderful aircraft if it is a net gain or loss — Mars vs. Earth.
- walrus01 5y agoThe Black and white bottom facing camera may have a very short exposure time and a global (not rolling) shutter.