Comment on U.S. Army, Uber sign research agreementparentComments−rando4448yTandem rotors have been around for almost a century.What they're doing here is stacking rotors on top of each other, not for lift, but apparently because it's quieter and allows for 'better performance' .. whatever that means.
Comments
Tandem rotors have been around for almost a century.
What they're doing here is stacking rotors on top of each other, not for lift, but apparently because it's quieter and allows for 'better performance' .. whatever that means.