Not too good at numbers either, but, i think you are getting at the same point I'm making. that cessna's gonna get heavy real fast and it's fuel usage will go through the roof.I wish I was good with numbers, but I'm not..
Max weight of the Cessna is 2,200lbs and it burns about 7.5-9.2 gallons of fuel per hour. So.. like 252kWs ... burned an hour? X: Probably doing that entirely wrong.
There is an electric self-launching glider for sale now. The company has sold at least 20 this year, so far.A better use for electric power in airplanes in the near term will be self-launching gliders.
I thought perhaps so, too, until I learned a couple of things.Having read through this, I'm wondering if anyone has tried to do a weight in/weight out calculation.
Clearly batteries would be heavy but so are aircraft engines.
An EV motor HAS to be lighter than one of those things.
I would be interested to know the maximum continuous hp they are getting from a 100 lb electric motor. Based on the Warp 11 as a rough guideline I would think it is no more than 50hp continuous for a 100lb motor. That would be enough to keep a Skylane airborne, but not moving very fast.I though that I read a detailed article on the Bye hawk a month ago there . did a search , no luck . But as I remember , new 5 blade prop (lighter) engine weight 350 lbs reduced to under 100 lbs for E motor , then they used the motor weight saving plus the max fuel weight to get the weight of the battery (Li-poly) to get 2 hrs. flight time that would be good for training . that would work for me to commute to bay area (40 min. flight).