"IGF::OT::IGF" LOW NOISE PROPELLERS FOR GL-10 (GREASED LIGHTNING) THE GOAL OF THIS TASK ORDER IS TO DESIGN…

Public award description

"IGF::OT::IGF" LOW NOISE PROPELLERS FOR GL-10 (GREASED LIGHTNING) THE GOAL OF THIS TASK ORDER IS TO DESIGN AND TEST A LOW NOISE PROPELLER FOR GREASED LIGHTNING (GL-10). GL-10 IS A VERTICAL TAKEOFF AND LANDING (VTOL) CRUISE EFFICIENT AIRCRAFT CONCEPT. WE HAVE BUILT AND ARE CURRENTLY FLIGHT TESTING A 10 FT WINGSPAN ~55 LB VERSION OF THE AIRCRAFT CONCEPT. WE WOULD LIKE TO DESIGN QUIETER PROPELLERS FOR THE AIRCRAFT. CLEARLY THERE IS A TRADE BETWEEN MINIMUM NOISE AND PROPELLER EFFICIENCY. THIS TASK WILL INVESTIGATE THIS TRADE AND COMBINED WITH INPUT FOR THE NASA TECHNICAL POINT OF CONTACT (POC) A FINAL BLADE DESIGN WILL BE SELECTED. IN ADDITION, IT IS OF INTEREST TO NASA AS TO THE SCALING EFFECTS FOR LARGER PROPELLERS. THIS LEADING-EDGE RESEARCH WILL EXPLORE DESIGN TRADEOFFS TO DESIGN PROPELLERS THAT ARE QUIETER AND MORE EFFICIENT AND IS ALIGNED WITH NASA AERONAUTICS MISSION DIRECTORATE (ARMD) STRATEGIC THRUST 3 TO DEVELOP ULTRA-EFFICIENT, LOW-NOISE VEHICLES.