icon06:11 RC-Videos GRUMMAN X-29 SELF-CONSTRUCTION RC TURBINE JET AEROBATIC AIRSHOW FLIGHT FRIEDHELM GRAULICH Stephan Eich7 Jahren ago 1 Jahr ago GRUMMAN X-29 SELF-CONSTRUCTION RC TURBINE JET AEROBATIC AIRSHOW FLIGHT FRIEDHELM GRAULICH GRUMMAN X-29 SELF-CONSTRUCTION RC TURBINE... 05.4K