Keystone B-6

In 1931, the United States Army Air Corps received five working models (Y1B-6s) of the B-6 bomber.The Air Corps placed an order for 39 production models on 28 April 1931, with deliveries between August 1931 and January 1932.[1] At the same time, an order was placed for 25 B-4As, the same aircraft but mounting Pratt & Whitney engines instead of Wright Cyclones.The Douglas Y1B-7 and Fokker XB-8 were originally designed as high-speed reconnaissance aircraft.On December 27, 1935, six B-6 bombers of the 23rd Bomb Squadron based in Hawaii dropped bombs to divert lava flow from the volcano Mauna Loa away from the port of Hilo.
Keystone B-6 airmail plane in snowstorm, 1934
Light bomberManufacturerKeystone AircraftUnited States Army Air CorpsKeystone B-3biplanebomberMartin NBS-1Douglas Y1B-7Fokker XB-8mail planesAir Mail scandalMauna LoaVirginiaTangier IslandMarylandSmith IslandChesapeake Bay49th Bomb SquadronLangley FieldGoodyear BlimpMartin B-10BWright R-1820-1United StatesWright R-1820radial enginesPower/massBrowningmachine gunsKeystone B-4Keystone B-5List of bomber aircraftList of military aircraft of the United StatesHuff-DalandKeystone and Keystone-LoeningAir YachtCommuterPathfinderProntoTri-ServiceNB-36HRB-57DRB-57FFB-111