Standard
A Method of Ground Resonance Testing for Helicopters
1946-09-01
CURRENT
AIR12
Search Results
Standard
A Method of Ground Resonance Testing for Helicopters
1985-01-01
CURRENT
AIR883
(This document supersedes and cancels AIR 12) 'Ground resonance' is a term which originated in the early days of autogiro development in this country. It is a somewhat ambiguous term as the conditions it describes usually occur at the ground but do not have any association with the common expression 'ground effect'. However, the troubles usually associated with 'ground resonance' do occur when the ship is on or near the ground.
Standard
EVALUATION OF HELICOPTER TURBINE ENGINE LINEAR VIBRATION ENVIRONMENT
1976-09-01
HISTORICAL
AIR1289
Standard
HELICOPTER POWER ASSURANCE
1989-07-13
HISTORICAL
AIR4083
Standard
AIR BLEED OBJECTIVE FOR HELICOPTER TURBINE ENGINES
1969-04-01
HISTORICAL
AIR984
Standard
AIR BLEED OBJECTIVE FOR HELICOPTER TURBINE ENGINES
1978-08-01
HISTORICAL
AIR984A
Standard
Air Bleed Objective for Helicopter Turbine Engines
1997-05-01
HISTORICAL
AIR984C
This SAE Aerospace Information Report (AIR) defines the helicopter bleed air requirements which may be obtained through compressor extraction and is intended as a guide to engine designers.
Standard
AIR BLEED OBJECTIVE FOR HELICOPTER TURBINE ENGINES
1983-10-01
HISTORICAL
AIR984B
Standard
Air Bleed Objective for Rotorcraft Turbine Engines
2023-05-10
CURRENT
AIR984D
This SAE Aerospace Information Report (AIR) defines the helicopter bleed air requirements which may be obtained through compressor extraction and is intended as a guide to engine designers.
Standard
Engine Erosion Protection
1998-02-01
CURRENT
AIR947
This Aerospace Information Report deals with protection of helicopter aircraft engines against erosion. Applicability is restricted to aircraft having a disc loading of less than 15 pounds per square foot.
