Accession Number:

ADA011116

Title:

Environmental Testing of the Improved Engine and Windshield Anti-Ice and Rotor Blade Deice Systems Installed in the CH-46A Helicopter.

Descriptive Note:

Technical rept.,

Corporate Author:

NAVAL AIR TEST CENTER PATUXENT RIVER MD

Personal Author(s):

Report Date:

1966-03-07

Pagination or Media Count:

24.0

Abstract:

Engine inlet and windshield anti-ice and rotor blade deice systems were flight tested in natural icing conditions and in an icing cloud. The CH-46A, when configured with Airframe Changes 58, 80, 118, and IBCC 61-777, is suitable for flight in icing conditions at ambient temperatures down to 10F. The inlet anti-ice system failed to meet specification requirements in that when operating in ambient temperatures below 10F, the anti-ice system did not maintain the inlet in an ice-free condition and engine damage from ingested inlet ice occurred. The rotor blade deice system and the windshield anti-ice system met applicable specification requirements and are satisfactory for service use.

Subject Categories:

  • Helicopters

Distribution Statement:

APPROVED FOR PUBLIC RELEASE