Limitations Flashcards
The absolute VNE for power on is ______ at zero pressure-altitude.
At higher altitudes, this speed is to be reduced by ______.
The absolute VNE for power on is 155 kts at zero pressure altitude.
At higher altitudes, this speed is to be reduced by 3 kts/1000’
In temperatures below -30, ___ kts must be subtracted from the VNE (power on)
10 kts
The absolute power off VNE is ______ at zero pressure altitude.
At higher altitudes, this speed is to be reduced by _____ .
The absolute power off VNE is 125 kts at zero pressure altitude.
At higher altitudes, this speed is to be reduced by 3 kts/1000’
In temperatures below -20, ____ kts must be subtracted from the power off VNE
20 kts
The maximum substantiated pressure altitude is _______ feet
20,000’
Minimum operating temperature is _____
-40 degrees
NR power on on the ground at low pitch must be ______ rpm.
NR power on in stabilized flight must be ______ rpm.
On the ground at low pitch: 380+/- 5 rpm
In stabilized flight: 390 +4/-5 rpm
What is the maximum internal gross weight?
4961 lbs
What is the maximum NR for using the rotor brake? What is the recommended speed?
170 NR maximum, 140 NR recommended
What is the minimum time between periods of applying the rotor brake?
5 Minutes
What is the NG transient?
Ng = 107.5% for less than 5 seconds
△Ng = +6 for less than 5 seconds
What is the NG max takeoff limit?
Without P2 Air: △Ng = 0
With P2 Air: △Ng = -0.6
What is the maximum continuous NG?
Ng = 98%
△Ng = -3.5
What is the maximum t4 for engine starting?
795 degrees C
What is the t4 transient during engine start?
865 degrees C for no more than 5 seconds
What is the t4 maximum on takeoff?
845 degrees C
What is the t4 max continuous?
795 degrees C
What is the free turbine speed maximum continuous (equivalent)?
417 rpm
What is the free turbine speed transients?
5 seconds max
Minimum 330 rpm
Maximum 463 rpm
When does the NR low horn sound? Is the sound intermittent or continuous?
Below 360 rpm, continuous
When does the NR high horn sound? Is the sound intermittent or continuous?
Above 410 rpm, intermittent
What are the conditions for using gasoline in the tank?
-Within 1 period of time within overhauls, no more than 25 hours flown on gas
-Add 2% lubricating oil if possible
-Hp up to 1500’
-Fuel temp up to 30 degrees C
What is the maximum engine oil pressure outside of the starting sequence?
5 Bar
What is the minimum engine oil pressure when between 70-85% Ng?
1.3 Bar
