Bar, Here's the next generation VTOL for the military - Bell V-280 Valor (see below).
Btw, those small VTOL companies (JOBY, ACHR), are not penny stocks -> market caps are 3.7 bil and 1.4 bil respectively. Fwiw, they look considerably safer than this Bell V-280 Valor. Lose an engine or two (or three) and the Joby or Archer just keep on flying. With the Bell V-280 Valor you're in a heap of trouble -