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Gazelle
Gazelle helicopter limitations
66
Aviation
Not Applicable
10/28/2016

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Cards

Term
Battery Voltage & rating ?
Definition
24V- 40AH
Term
Starter Generator Voltage and rating ?
Definition
28.5V - 135AH
Term
Between what Nc range does the Generator caption on the CWP clear?
Definition
Between 19,000 - 30,000
Term
What are the indications of a battery contact failure?
Definition
BATT Caption on CWP.
Term
What are the indications of a Generator failure?
Definition
GEN caption on CWP.
Term
What are the indications of an Alternator failure?
Definition
ALTNR caption on CWP and Main AI Gyro flag showing.
Term
Following an alternator failure, what instruments / systems become inoperative
Definition
Main AI, Compass and SAS.
Term
Nominal governed Nr?
Definition
380 +/-2
Term
Minimum Nr Power on?
Definition
359
Term
Maximum Nr power on?
Definition
391
Term
What is the specification and capacity of the engine oil?
Definition
OX7

9.6 litres
Term
What is the specification and capacity of the Hydraulic oil?
Definition
OM-15

3.25 litres

(ODM 1.8.1)
Term
What is the specification and capacity of the Main Rotor Gearbox /Transmission oil?
Definition
OEP 70

3.5 litres
Term
What specification and capacity of the Main Rotor Head Hinge oil reservoir(s)?
Definition
OEP 70

1.3 litres each
Term
Between what range Nc should the ENG P caption clear by, and what are the actions if it does not clear?
Definition
28,000 - 35,000 Shut down if ENG P is not clear by 35,000
Term
When advancing the throttle at rotor engagement what is torque limit prior to the Nr and Nc needles joining?
Definition
15%
Term
When advancing the throttle at rotor engagement what is torque limit once the Nr and Nc needles have joined?
Definition
25%
Term
What amount of fuel is unusable
Definition
2.4Kg
Term
At what fuel state will the FUEL light on the CWP illuminate - Intermittently
Definition
80kg
Term
When will the FUEL light illuminate STEADY on the CWP
Definition
40Kg
Term
What indicates that the Fuel Filter is becoming blocked.
Definition
F.FILT illuminates on the CWP
Term
What is the oil type and capacity of the Tail Rotor Gearbox?
Definition
OEP 70

0.3 litre
Term
Maximum Nr before applying the Rotor brake?
Definition
170 RPM
Term
What is the oil type and capacity for the Intermediate Gearbox?
Definition
OEP 70

0.1 litre
Term
Nr Limits Power OFF?
Definition
310 - 430 RPM
Term
What are the Transmission torque limits?
Definition
Max Continuous 97.5%

Maximum 102.5%

(ODM 2.4.1)
Term
Why is the Hydraulic pump driven off the Main Gearbox, rather than the Engine?
Definition
An engine failure would lead to a Hydraulic Failure.
Term
Fuel state below 80Kg - what is the nose down limit?
Definition
12 degrees Nose down.
Term
What is the T4 5 minute limit?
Definition
610 degrees C
Term
What is the T4 Max continuos limit?
Definition
580 degrees C
Term
At sea level what is the Gazelle's VL (VNE)
Definition
168kts decreasing by 4 kts PS per 1000ft.
Term
What are the sloping ground limits?
Definition
12 degrees nose up

9 degrees laterally

(Nose down landings are prohibited_)
Term
What is the Maximum rate of yaw?
Definition
60 degrees per second (6 seconds to complete a 360 degree turn)
Term
The aplication of full cabin heat will reduce torque availability by how much?
Definition
5%
Term
Maximum AUM?
Definition
1900Kg
Term
Maximum windspeed for rotor start?
Definition
40 knots.
Term
Maximum Pressure altitude?
Definition
12,000 ft
Term
At <70 kts and below 5,000ft PA, what is the maximum angle of bank?
Definition
15 degrees
Term
At 70-85 kts and below 5,000ft PA, what is the maximum angle of bank?
Definition
30 degrees
Term
At >85 kts and below 5,000ft PA, what is the maximum angle of bank?
Definition
45 degrees
Term
Power off - Minimum Nr?
Definition
310
Term
Power off Maximum Nr?
Definition
430
Term
What is the minimum height from which an engine restart can be attempted?
Definition
2,300 ft AGL
Term
Minimum Fuel?
Definition
10kg
Term
When the DC Gen is switched on, when will the Differential cut-out trigger?
Definition
When Generator output exceeds battery voltage by 0.5 Volts.
Term
What is the maximum permitted T4 before starting the engine?
Definition
150 degrees C.

If higher inititate a vent run.
Term
How many attempted starts are allowed before the starter motor must be allowed to cool and what is the cooling period?
Definition
Maximum of 3 attempts with a 1 minute pause between attempts.

After 3 attempts a 25 minute (starter)cooling period is required.
Term
Maximum sideways and backwards speed at <1800 Kg and >1800Kg
Definition
30kts if < 1800
20kts if >1800
Term
Define icing conditions.
Definition
Flight in cloud or fog within the temperature range 0 to -30 degrees C, when visibility is less than 1000 metres. Flight in snow alone does not constitute icing conditions.
Term
What is the minimum engine oil temperature for effective anti icing?
Definition
30 degrees C.
Term
Define icing conditions.
Definition
Flight in cloud or fog within the temperature range 0 to -30 degrees C, when visibility is reduced to less than 1000 metres. Flight in snow alone does not constitute icing conditions.
Term
What is the minimum engine oil temperature for effective anti icing?
Definition
30 degrees C.
Term
What is minimum temperature for starting and take off? (Engine oil OX7)
Definition
Minus 30 degrees C.
Term
What is the Maximum continuous Torque limit?
Definition
97.5%
Term
Best rate of climb speed (VY)?
Definition
65 knots
Term
Maximum Endurance speed?
Definition
65 knots
Term
At a cruising speed of 120 knots what is the fuel consumption?
Definition
2.2 Kg per minute
Term
At 80 knots what is the fuel consumption?
Definition
1.7 Kg per minute
Term
At 120 knots IAS how much fuel would you use in 1 hour? (ISA)
Definition
132 Kg
Term
Best range speed?
Definition
Best range speed is generally achieved with a collective pitch setting of 14 degrees.
Term
With Hydraulics OFF, what is the maximum speed and angle of bank?
Definition
95 knots - 30 degrees.
Term
What is the nominal Hydraulic pressure and at what pressure will the HYD caption illuminate on the CWP?
Definition
Nominal 40 Bar

HYD caption illuminates at 32 Bar.

(ODM 1.8.1)
Term
In autorotation, what airspeed gives the minimum rate of descent?
Definition
65-70 knots

(ODM 3.2.6)
Term
In autorotation, what airspeed gives the best range?
Definition
95 knots

(ODM 3.2.6)
Term
How far aft of the datum should an acceptable (longitudinal)C of G position lie?
Definition
Between 2800mm and 3120mm.
Term
After releasing the rotor brake, the clutch is serviceable if how many blades pass within how many seconds?
Definition
18 blades in 30 seconds
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