When do we get the first 100 seater solar/electric hybrid airliner ?

I have done some calculations for the past 1½ year for several concepts and I am convinced that we could have a 60-100 seater passenger plane flying daytime at 20 000 meters ( ~ FL700 ).

For the occasion I even invented a new ( to me ) parameter to observe this possibility in comparison to existing air breathing aeroplanes.

Anyway electric aeroplanes don’t breathe air so they can fly in the thin air at very high altitude where there is very small resistance and even a plane that is slow at low can fly very fast at high altitude, albeit the IAS is low.

Here is physically nothing new…it is just the time what it takes to get to FL700 that might be a bit problematic. In addition to solarpower which can provide half of the trust at high you also need electric power in form of batteries or you can use rocket power to get to 20 000 meters.

Who has had the same/similar idea and wants to do co-operation on this field ?

Who knows how planes are pressurized ( this is a must ) ?

Oh and the best part is that it could cruise @ M 0.75 just below the trans sonic speed. :eagerness:

The latest has got 80 m span and around 1050 m2 of solar panels on top side.

This typical MARS expedition flyer ( NASA has several of these ) could easily fly at 20 000 m ( FL700 ) on solar and electric power.