![]() ![]() Initial flight tests revealed it to have favourable handling and performance. During August 1916, the prototype DH.4 made its first flight, powered by a prototype 230 hp (170 kW) BHP engine. The DH.4 was developed in parallel to the rival Bristol Fighter. ![]() The intention was for it to be powered by the newly-developed 160 hp (120 kW) Beardmore Halford Pullinger (BHP) engine. The DH.4 was designed by Geoffrey de Havilland as a light two-seat combat aircraft, intended to perform both day bomber and aerial reconnaissance missions. Army later had several companies re-manufacture its remaining DH.4s to DH.4B standard and they operated the type into the early 1930s. War-surplus DH-4s became key aircraft in newly emerging air forces throughout the world. Early commercial passenger airplane service in Europe was initiated with modified variants of the DH-4. The majority were manufactured as general purpose two-seaters in the United States for the American expeditionary forces in France.įollowing the Armistice of 11 November 1918, many DH.4s were sold to civil operators where it was found to be particularly useful as a mailplane. The DH.4 first flew in August 1916 and it entered operational service in France on 6 March 1917 less than a year later. It was to have been powered by the new 160 hp (120 kW) Beardmore Halford Pullinger (BHP) engine, but problems with that resulted in numerous other engines being used, perhaps the best of which was the 375 hp (280 kW) Rolls-Royce Eagle engine. The DH.4 was developed as a two-seat combat aircraft, for both day bomber and aerial reconnaissance missions. It was designed by Geoffrey de Havilland (hence "DH") for Airco, and was the first British two-seat light day-bomber capable of defending itself. ![]() The Airco DH.4 is a British two-seat biplane day bomber of the First World War. On May 24, 1931, a Pacific Air Transport Boeing 95, registration NC397E, crashed into a mountain near Bellefonte, Pennsylvania in poor visibility, killing the pilot.6,295, of which 4,846 were built in the United States.He and the aircraft were found five months later. The pilot, Maurice 'Maury' Graham, survived the crash but died while attempting to hike out. On January 10, 1930, a Western Air Express Boeing Air Transport Boeing 95 "NC420E",while flying the US mail on CAM 4 routing from Las Vegas to Salt Lake City crashed in fog and snow south of Cedar City, UT.Powerplant: 1 × Pratt & Whitney R-1690 Hornet 9-cylinder air-cooled radial engine, 525 hp (391 kW).Variants Model 95 standard production version Model 95A one aircraft built with Pratt & Whitney Wasp engine Operators Honduras Another Model 95 took part in Boeing-arranged inflight refuelling demonstrations in 1929 but was unsuccessful in either of the two attempts made to fly a round-trip across the continental United States without landing. The majority of Boeing 95s spent their careers flying Boeing's airmail routes, however a small number did find their way to other operators.Īt least one Boeing 95 was used by the Honduran Air Force as a bomber. The fuselage was of far more advanced construction than its predecessor, building on what Boeing had learned about all-metal fuselages while developing the P-12 and F4B fighters, while the wing had stagger and a simplified structure. ![]() While the Model 95 was of the same general configuration as the Model 40, it was larger and more sophisticated aerodynamically and structurally, and was optimized for freight instead of passengers. Boeing 95 (front) and Boeing 40 (rear) in flight ![]()
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