MD Helicopters MILVIZ MD530F, Rotorcraft Flight Manual, Page: 8 / 326

MV MD530F ROTORCRAFT FLIGHT MANUAL
104 - 106% for 15 seconds
Power Turbine (N2) speed limits:
Normal Power On operation: 103% to 104% N2.
Transient overspeed limit (15 seconds maximum): 113% at idle power varying
linearly to 108% at 64.5 psi torque.
Avoid steady state operations between 75% and 88%. Transition through the
speed avoid range is to be accomplished as quickly as possible.
Maximum allowable time in the speed avoid range is 1 minute.
NOTE: Refer to Rolls-Royce CEB A-1400.
Engine oil system limits:
Flight operation temperature limits: 0°C to 107°C
NOTE: These engine oil temperature limits pertain to all gauge configurations. 0°C is
when the needle is at the bottom of the yellow/green arc.
Flight operation pressure limits:
94.2 percent N1 and above: 115 - 130 psig
78.5 to 94.2 percent N1: 90 - 130 psig
78.5 percent N1 and below: 50 - 130 psig