Accession Number:

AD0905038

Title:

UH-1N Salt Water Spray Ingestion Tests (Category II Follow-On Test Program)

Descriptive Note:

Final technical rept.

Corporate Author:

AIR FORCE FLIGHT TEST CENTER EDWARDS AFB CA

Report Date:

1972-10-01

Pagination or Media Count:

56.0

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, SN 66007, had accumulated 304 hours prior to this test program. The right engine, SN 66199, had accumulated 128 hours and the combining gearbox, SN 4016, 301 hours.

Subject Categories:

  • Helicopters
  • Transport Aircraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE