4 ms·
I've been really excited for the electric revolution exactly because of all of the things that can be done differently. A huge example in my mind is the X-57 co
by darksaints 5y ago
I've been really excited for the electric revolution exactly because of all of the things that can be done differently. A huge example in my mind is the X-57 concept plane.
https://en.wikipedia.org/wiki/NASA_X-57_Maxwell https://en.wikipedia.org/wiki/NASA_X-57_Maxwell
Lightweight electric motors allow for a couple of noteworthy improvements:
* With the reduced weight of electric motors, they can now be placed at the ends of wings, with props that can then be used to counter the wingtip vortices and combat induced drag.
* The simplicity of electric power distribution means that propulsion can be done all along the wing's length, which can enhance lift coefficients by actively overcoming boundary layer conditions that lead to stalls.
* The increased wing lift coefficients mean that smaller and lighter wings can be used, which reduce structural weight as well as parasitic drag.
I'm not sure if we'll see production aircraft like this, but this is a great example of rethinking design decisions that were standardized under an entirely different regime of design constraints.
- throwaway894345 5y agoElectric planes are also quite a lot quieter than jet planes! Electric planes also favor more, smaller planes due to weight/energy-density constraints and the economics of jet engines vs electric motors: a small jet engine isn't dramatically cheaper than a big jet engine, so airlines prefer larger planes with big engines; however, electric motor costs scale more linearly so a smaller electric planes are not significantly less economical than big electric planes (even excluding energy density concerns). With more, smaller flights, we could well see significant changes in the flight network. Rather than big flights between hubs, we may instead see more flights between smaller regional airports.