Mon Apr 19, 2021 7:11 pm
#1841503
High-Res video...
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Josh wrote:That and the overall mass of the helicopter is only 1.8 kg!
Josh wrote:Significantly more. I suspect @Dave W could offer a more technically adept description but basically lift is proportional to density of the atmosphere you're going for, and the Martian surface only offers 1% of the earth's. The rotor RPM of Ingenuity is also 6 times the average earthbound helicopter rotor RPM.
The shape of the rotor blades are intriguingly different to my eye too - is that to do with distribution of lift along the blade?
akg1486 wrote:What is mentioned is that the blades can be asymmetrically tilted during revolution to provide torque to move sideways. I wouldn't be surprised if the shape is optimized for that.
Dave W wrote:That characteristic is traditional helicopter technology; the pitch on each individual blade is cyclicly (ie at a particular point on the revolution) changed so that the disc formed by all blades tilts in the dynamically desired direction.