the engineering article about the motors is super in depth, some of it way over my head, but they also compare the development of EV cars to planes and I get this... at least now... because it didn't occur to me:
Regeneration is great for cars!
Regeneration is a BIG NO for airplanes! Because if you glide and the propeller to regenerate power, you fall out of the sky. 😬 😂
so ya, none of that!
"Critically, one area the company worked hard on reducing was regeneration. At no point during flight, as well as descent, can the plane simply carry on under its own momentum while air drives the propellers to generate current. That would create a large amount of drag, and the plane would start to fall rapidly.
“Maybe a glider or UAV could do that, but not a passenger aircraft,” Armesmith says. “There are rules against it in aerospace, so we have to actively stop regeneration from being possible, it’s a fault we have to arrest,” Armesmith says.
“So, if we’ve either lost power or had to turn the motor off for any reason, the propeller needs to be able to windmill freely. We can’t have any electromagnetic resistance to the propeller free-turning owing to regeneration back into the DC bus.”
ya... glide good! fall bad! lol
I am very glad these very smart people are making it happen and a local company is right in there!!
#BC #AirTravel #ClimateAction #ClimateChange #EndFossilFuels
@chris@mstdn.chrisalemany.ca
