https://www.thedrive.com/the-war-zo...PnCICVh9TpRQvDaSiR2o2xKUKAQlqDd5s4uOYn8o
Quote: "the Otto Aviation Celera 500L, is definitely focused on potentially game-changing high-efficiency flight that has the potential to disrupt the aerospace marketplace"
"It is unclear from the available information whether the Celera 500L uses one or two A03 engines. The FAA's profile describes the aircraft as a "single engine," but patent documents had described two engines driving a single propeller. Of course, they had also said these would be diesel engines with multi-stage turbochargers and intercoolers, the latter of which redirect heat to improve efficiency and keep the entire system cool while the former would theoretically provide enough power even at very high altitudes where super-efficient flight can be realized"
"The patent goes on to describe a notional aircraft that would cruise between 460 and 510 miles per hour at an altitude of up to 65,000 feet, yielding a fuel efficiency rate of between 30 and 42 miles per gallon"
Powered by (possibly 2) 500HP diesel engines, although it looks like just one engine. I have to wonder...... It's a neat shape, and clearly there is a bit of drag reduction by having such a clean shape. However, the twin pusher Piaggio Avanti is similarly configured and achieved little in the way of better efficiency.
The thing that always comes up is that we've done remarkably well optimizing shapes for low drag. Today's modern aircraft have incredibly low Cd
Quote: "the Otto Aviation Celera 500L, is definitely focused on potentially game-changing high-efficiency flight that has the potential to disrupt the aerospace marketplace"
"It is unclear from the available information whether the Celera 500L uses one or two A03 engines. The FAA's profile describes the aircraft as a "single engine," but patent documents had described two engines driving a single propeller. Of course, they had also said these would be diesel engines with multi-stage turbochargers and intercoolers, the latter of which redirect heat to improve efficiency and keep the entire system cool while the former would theoretically provide enough power even at very high altitudes where super-efficient flight can be realized"
"The patent goes on to describe a notional aircraft that would cruise between 460 and 510 miles per hour at an altitude of up to 65,000 feet, yielding a fuel efficiency rate of between 30 and 42 miles per gallon"
Powered by (possibly 2) 500HP diesel engines, although it looks like just one engine. I have to wonder...... It's a neat shape, and clearly there is a bit of drag reduction by having such a clean shape. However, the twin pusher Piaggio Avanti is similarly configured and achieved little in the way of better efficiency.
The thing that always comes up is that we've done remarkably well optimizing shapes for low drag. Today's modern aircraft have incredibly low Cd
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