GEN H-4 vol7 

ゲン・コーポレーションが開発した一人乗りヘリコプター『GEN H-4』のデモフライト映像
Demo flight at Matsumoto airport of the GEN H-4, the World's smallest manned helicopter, developed by GEN Corporation.
General information about GEN Corporation and the GEN H-4 can be found at:
www.gen-corp.jp (Japanese)
en.gen-corp.jp (English)
Current price for a (gasoline) GEN H-4 prototype is JPY 7,500,000.00 or about USD 100,000.00 due to small production capacity.