GEN H-4: World’s Smallest One-Man Helicopter Costs $58,250
byGEN H-4, the one pictured above. Don’t doubt it as an air balloon that runs on engine. But to your much-surprise it is the…
Gennai Yanagisawa
GEN H-4, the one pictured above. Don’t doubt it as an air balloon that runs on engine. But to your much-surprise it is the…