Apus Aircraft Design Stores Hydrogen in Wing Spar Tanks
Apus Group is developing a family of composite aircraft that will store hydrogen in circular wing spar fuel tanks.
The Apus i-2 uses hydrogen to power fuel cells, which deliver electricity to two electric motors. Wing spars double as hydrogen fuel tanks.  (Photo: Matt Thurber/AIN)
The Apus i-2 uses hydrogen to power fuel cells, which deliver electricity to two electric motors. Wing spars double as hydrogen fuel tanks. (Photo: Matt Thurber/AIN)