UH-1N Salt Water Spray Ingestion Tests (Category II Follow-On Test Program)
Abstract
The UH-1N helicopter was manufactured by the Bell Helicopter Company, Fort Worth, Texas. It had a single two-bladed lifting rotor and a tractor-type tail rotor instead of the more conventional pusher-type tail rotor. The UH-1N utilized the basic UH-1D fuselage, but was powered by an engine with twin power sections in contrast to the single power section engine employed by the UH-1D. At the time the salt spray program began, the test aircraft had accumulated 303 airframe hours. The test aircraft was powered by a United Aircraft of Canada T400-CP-400 engine rated at 1,800 shaft horsepower (SHP). The engine consisted of two independent power sections driving into a combining gearbox. The combining gearbox contained an overrunning clutch and a torquemeter for each power section. The left engine, S/N 66007, had accumulated 304 hours prior to this test program. The right engine, S/N 66199, had accumulated 128 hours and the combining gearbox, S/N 4016, 301 hours.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1972
- Accession Number
- AD0905038
Entities
People
- Clark E. Lovrien Jr.
- Ronald R. Eschweiler
- Sydney E. Gurley
Organizations
- Air Force Test Center