Consolidated P-30
 The Consolidated P-30 (PB-2) was a 1930s United States two-seat fighter aircraft. An attack version called the A-11 was also built along with two Y1P-25 prototypes and YP-27 Y1P-28 and XP-33 proposals. The P-30 is significant for being the first fighter in United States Army Air Corps service to have retractable landing gear an enclosed and heated cockpit for the pilot and an exhaust-driven turbosupercharger for altitude operation.