Or do scientists have to invent totally new airplane?
For example, ATR-72 with jet fuel system to ATR-72 biofuel system
or ATR- 72 with jet fuel system to TOTALLY “NEW INVENTED PLANE” with biofuel system?
(may be broke/outdated!)
Or do scientists have to invent totally new airplane?
For example, ATR-72 with jet fuel system to ATR-72 biofuel system
or ATR- 72 with jet fuel system to TOTALLY “NEW INVENTED PLANE” with biofuel system?