The Lockheed/Boeing/General Dynamics YF-22 first flight 29 September 1990 was an American single-seat, twin-engine fighter aircraft.

#lockheed #boeing #dynamics #yf #first #flight #september #america #fighter #design #usaf #air #force #aviation #research #technology #news #explore #discovery #history #fact #facebook #google #Chilly #Cockroach #Floor #Drain #Trap #Don't Kill.. #Pollution Nil.. No #Recurring Bill.. Just Chill.. Chill.. Just Chill..