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Twin JN — An enlarged twin-engined version of the JN-4, they were powered by two OXX-2 V-8 engines, built in 1916 as the JN-5 for an observation role; among the many other modifications was an enlarged wingspan and new rudder adapted from the Curtiss Model R-4. Two of the series saw action with the US Army on the Mexican border in 1916–1917.
They flew a wide variety of aircraft during the inter-war period. These included the Curtiss JN-4 "Jenny", Consolidated PT-1 "Trusty", Consolidated PT-3, Northrop BT-1, Douglas O-2 and Consolidated O-17 Courier during 1923–1931; the Douglas O-38 during 1931–1935; and the Douglas O-43 and North American O-47 between 1935 and 1942. [1] [2]
On 28 October 1917, the company announced it would soon purchase a parcel of land at 128 Twelfth Street and build a 50,000 square foot factory at the location. [1] During World War I, the Fowler Aircraft Corporation, located on Howard Street in San Francisco, built Curtiss JN-4Ds for the U.S. Army Signal Corps.
Of the DH-4's, the first six postwar examples, all virtually stock DH-4B's, arrived for duty with the 7th in February 1920, replacing the well-worn Curtiss R-6's and other earlier DH-4's. By 16 February 1922, the squadron had seven "war-built" DH-4's, four DH-4B's, the solitary Curtiss JN-4H, three Curtiss JN-6's.
Curtiss produced 10,000 aircraft during that war, and more than 100 in a single week. Peace brought cancellation of wartime contracts. In September 1920, the Curtiss Aeroplane and Motor Company underwent a financial reorganization and Glenn Curtiss cashed out his stock in the company for $32 million and retired to Florida. [24]
In addition to the R–2s, the squadron received three Standard H–2s, six Curtiss twin-engine JNs, about seven Curtiss JN–4 "Jennies", and other planes from Martin, Sturtevant, Thomas, and LWF. All told, counting the four Curtiss N–8s, the 1st Aero Squadron received fifty-one airplanes at Columbus by 6 April 1917.
Beginning in August 1915, the 1st Aero Squadron spent four months at Fort Sill, Oklahoma, training at the Field Artillery School with eight newly delivered Curtiss JN-2s. After a fatal crash on 12 August, the pilots of the squadron met with squadron commander Foulois and declared the JN-2 unsafe because of low power, shoddy construction, lack ...
Based on the successful Curtiss JN-4, the Twin JN used the same wing structure, but the wingspan was extended by enlarging the center section. Lateral control was achieved with the tail of a Curtiss R-4. The Twin JN was powered by a pair of 90 hp (67 kW) Curtiss OXX-2 engines located between the wings.