Section 2 Limitations Flashcards
What is the limitation when hovering downwind, with a cyclic trim failure (full forward)?
15 knots
What are the approved doors off configurations?
All doors off, both rear doors off, any one door off.
Max VNE for any of the doors off configurations
130 knots for gross weight of 2501 pounds or more and 120 knots for 2500 pounds or less.
What is the maximum operating density altitude?
16,000 feet.
What are the ambient temperature limitations?
From sea level to 6000ft pressure altitude the maximum engine air inlet ambient temperature is 54°C. From 6000 to 20,000 feet pressure altitude it varies linearly from 54°C to 27°C
What is the VNE during autorotation?
131 knots or less.
What is the normal flight VNE?
156 knots.
What is the VNE when carrying less than 35 pounds of fuel?
130 knots
What is the maximum gross weight?
3000 pounds.
What is the minimum flying gross weight?
1538 pounds
What is the Cargo deck weight capacity?
1300 pounds. No more than 115 pounds per square foot.
What is the maximum allowable weight in the utility storage compartment?
50 pounds.
What are the rotor speed limitations?
Power on: Minimum RPM is 487 (102% N2) Maximum: 492 RPM (103% N2) Power off: Minimum RPM is 410 (87% N2) Maximum: 523 RPM (109% N2)
What is the maximum 5 minute takeoff torque limit?
87.2 psi
What is the max continuous torque limits?
81.3 psi with TOT at or below 738°C 74.3 psi with TOT greater than 738°C
What are the transient torque limits?
87.3 to 93.0 psi for 15 seconds at 103% N2 93.1 to 97.6 psi for 3 seconds at 103% N2
Maximum 5 minute takeoff TOT?
810°C
Maximum TOT before starting (light off)?
150°C
Maximum continuous TOT?
755°C with torque at or below 74.3 psi 738°C with torque greater than 74.3 psi
What are the TOT transient limits?
During start and shutdown 810°C and above for 10 seconds or less with a momentary peak temp of 927 for no more than 1 second
What are the minimum and maximum N1 speed limits?
Minimum ground idle speed: 60% Maximum continuous: 105%
What is the N1 transient limits?
106% for 15 seconds.
When spooling up, what is the power turbine (N2) speed avoidance range?
71-88% no more than 1 second.
What are the engine oil temp limits during flight operation?
0-107°C.
What are the engine oil pressure flight operation limits?
50-130 psi range 50 psi below 79% N1 90 psi at 79% N1 115 psi at 94% N1 and above.
Generator limits?
Max continuous 85 amps. 85-150 amps 10 minutes. Greater than 150 amps 2 minutes limit prior to takeoff during battery recharging cycle only.
Starter limitations.
1minute on, 1 minute off. 1 minute on, 23 minutes off.
What are the Minimum N1 speeds for starting? (introducing fuel)
-18°C and below 12%. -18 to 7°C 13%. 7°C and above 15%.
