this post was made by the aviation industry

imagine being used for recreational flying only; THIS POST WAS MADE BY THE AIRSPEED HORSA GANG; imagine being able to transport troops but can't take off again; THIS POST WAS MADE BY THE LOCKHEED C-5 GALAXY GANG; imagine having to use fuel to fly; THIS POST WAS MADE BY THE SOLAR IMPULSE GANG; Imagine only flying on earth; THIS POST WAS MADE BY THE SPACE SHUTTLE GANG