Limitations Flashcards
Torque limitations
Continuous -> 0-75%
5min T/O -> 75-100%
Max Transient -> 105% less than 5 sec above 100%
TOT Limitations
Start
10 sec limit start -> 826C
Maximum start limit -> 927C
In flight
Continuous -> 100-716C
5 min T/O -> 716-768C
Maximum Power On Transient -> 871C -> less than 10sec above 768C
Rotor RPM Limitations
Power On
Minimum transient -> 95%
Continuous -> 99-101%
Maximum Transient -> 104% during low power descent
Power Off
90-107%
Airspeed Limitations
Vne 130kts at sea level to 3000ft Hd
Vne 84kts at Tq 75-100%
Vne 90kts any doors off
Vne 100kts autorotation
Maximum gross weight
4450lbs
Ambient Air Temperature
51.7 C
Decrease with Hp at standard lapse rate of 2C per 1000ft to 20000ft
Generator limitations
0-90% Continuous
Gas Producer Limitations
Continuous -> 63-105%
Maximum Transient -> 106% for less than 10sec above 105%
Power Turbine RPM
Continuous -> 99-101%
Transient Overspeed Range -> 101-104% less than 5min above 101%
Avoid 71.8-91.5%
Fuel Pressure Limitations
Continuous -> 8-25 PSI
Engine Oil Pressure Limitations
Below 79% N1 -> 50 PSI
79-94% N1 -> 90 PSI
Above 94% N1 -> 115 PSI
Maximum 130 PSI
Engine Oil Temperature Limitation
Continuous -> 0-107 C
Anti Icing Limitations
Maximum ambient air temperature 4.4 C / 40 F
On when visible moisture and below above temperature
Starter Limitations
External Power Start
40sec ON 30sec OFF 40sec ON 30sec OFF 40sec ON 30MIN OFF
Battery Start
60sec ON 60sec OFF 60sec ON 60sec OFF 60sec ON 30MIN OFF
Transmission Oil Pressure Limitations
Minimum 30 PSI
Continuous 40-70 PSI
Maximum 70 PSI
