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Accession Number:
AD0900221
Title:
Category II Systems Follow-On Tests of the HH-53C Helicopter
Corporate Author:
AIR FORCE FLIGHT TEST CENTER EDWARDS AFB CA
Report Date:
1972-02-01
Abstract:
The HH-53C follow-on tests were conducted to identify the effects of salt water ingestion in regard to engine deterioration, to identify system deficiencies, and the effects of high altitude operation particularly as it affects the auxiliary power plant APP. The more important findings were as follows 1 salt water exposure can cause significant engine power deterioration therefore, engine air particle separators should be used for protection 2 the second stage hydraulic system can overheat with ambient temperature conditions as low as 50 degrees F 3 the APP operation was adequate for high altitude conditions 4 downwind hover caused ingestion of exhaust gases into the oil coolers resulting in oil overtemperature 5 the aircraft brakes were inadequate at high altitude, high gross weight combinations which required running landings and takeoffs.
Descriptive Note:
Final rept.
Supplementary Note:
Includes ASD Addendum.
Pages:
0030
Distribution Statement:
Approved for public release; distribution is unlimited.
File Size:
2.16MB
