a Ford 5-AT-B Trimotor, NC9636, c/n 5-AT-10, operated by Maddux Air Lines over San Diego, California, killing all 6 on board both aircraft. 18 May During the 1929 U.S. Army maneuvers, two Boeing P-12s of the 95th Pursuit Squadron, operating out of Norton Field (the first airfield to be built in central Ohio), collide over the Linden neighborhood on the north side of Columbus, Ohio, the propeller of 2nd Lt. Andrew F. Solter's XP-12A, 29-362, cutting into the rear fuselage of 2nd Lt. Edward L. Meadow's P-12 (possibly 29-361). Meadow is killed but Solter bails out and lands safely. Gen. Benjamin Foulois tells newsmen, "It's all in a day's work of the Air Corps. Although an unhappy occurrence, the accident will cause no change in the maneuver plans, which will be carried out as scheduled." 4 September First prototype, of three, Gloster Gorcocks, J7501, experimental single-seat, single-bay biplane interceptor, first delivered to the Royal Aircraft Establishment on 16 May 1928, breaks up in the air near Aldershot this date, the pilot bailing out successfully. 15 October Martin XT5M-1 divebomber, BuNo A-8051, during terminal dive test at 350 IAS at 8,000 feet, lower starboard wing caves in, ripping extensive hole. NACA test pilot Bill H. McAvoy staggers aircraft back to the Martin field north of Baltimore, Maryland, landing at 110 mph with full-left stick input. Aircraft will go into production as the Martin BM-1. 14 November U.S. Navy Naval Aircraft Factory PN-11, BuNo A-7527, delivered 26 October 1929, catches fire at NAS Anacostia, Washington, D.C., and is destroyed after only 13:06 flight hours. 29 November Bristol Type 101, a single-bay, biplane two-seat fighter design powered by a 450 hp Bristol Jupiter VI, and later, VIA radial engine, is rejected outright by the Air Ministry due to its all-wooden construction. Continued as a private venture, it first flies at Filton on 8 August 1927, piloted by Cyril Uwins, registered G-EBOW. With the VIA powerplant, Uwins achieves second place in the 1928 King's Cup race at an average speed of 159.9 mph. Subsequently used as a company hack and as a test bed for the 485 hp Bristol Mercury II nine-cylinder radial, it suffers wing centre section failure on this date while being subjected to engine overspeeding tests, the pilot, C. R. I. Shaw, bailing out successfully. This was the last wooden fighter built by the Bristol Aeroplane Company. 4 December Curtiss B-2