S76 C++ Limitations and Specifications

Question 1

What is the max ceiling take-off / landing Cat A?

Answer 1

5,000’ DA

Question 2

What is the max ceiling take-off / landing Cat B?

Answer 2

15,000’ DA

Question 3

What is the max enroute ceiling?

Answer 3

15,000 DA

Question 4

What is the start power limit?

Answer 4

840°C T5 Max

Question 5

When the OAT is below -20° C what oil temperature must be reached before accelerating the engine to flight?

Answer 5

0° C

Question 6

What are the take-off power limits?

Answer 6

• 100% TQ or 100% N1, whichever comes first

930° C T5 Max

Question 7

What are the climb power limits?

Answer 7

80% TQ or 97.1% N1, whichever comes first (SOP)

Question 8

What are the cruise power limits?

Answer 8

• 70% TQ or 97.1% N1, whichever comes first (SOP)
• 107% Nr

Question 9

What are the 30 sec power (OEI) limits?

Answer 9

135% TQ or 103.9% N1

Question 10

What are the 2 min power (OEI) limits?

Answer 10

127% TQ or 100.5% N1

Question 11

What are the MCP (OEI) limits?

Answer 11

115% TQ or 99.4% N1

Question 12

Why do we not consider T5 limits for takeoff, climb and cruise power settings?

Answer 12

Positive T5 margins in power assurance checks verifies that T5 cannot exceed the limit at any rating in all ambients

Question 13

What are the N1 parameters for shutdown?

Answer 13

N1 < 85% for 30 secs

Question 14

At what Nr can the rotor brake be applied?

Answer 14

<= 65%

107% in emergency

Question 15

What is VNE?

Answer 15

155 KIAS

Question 16

What is VNE power off?

Answer 16

136 KIAS

Question 17

What is VMINI (IFR)?

Answer 17

50 KIAS

Question 18

What is VBROC?

Answer 18

74 KIAS

Question 19

What is VCDP?

Answer 19

30-49 KIAS - 10 KIAS less than VTOSS

Dynamic based on field Length, PA, Temp, Engine Power Margin, Wind, Anti-Ice

Question 20

What is VTOSS?

Answer 20

40-59 KIAS - 10 KIAS more than VCDP

Dynamic based on field Length, PA, Temp, Engine Power Margin, Wind, Anti-Ice

Question 21

What is hold speed?

Answer 21

90 KIAS

Question 22

What is landing gear and FAF/FAWP speed?

Answer 22

110 KIAS (SOP) - 130 KIAS (RFM)

Question 23

What is VNE for windshield wipers?

Answer 23

141 KIAS

Question 24

Speed for inflation of and flying with floats?

Answer 24

75 KIAS

Question 25

Speed of contact with water with floats inflated?

Answer 25

33 kts

Question 26

Ground taxi, take-off, and landing speeds?

Answer 26

54 kts

Question 27

Breaking speed?

Answer 27

34 kts

Question 28

Sideward flight or crosswind hover speed?

Answer 28

35 KIAS

Question 29

Rearward flight or tailwind hover speed?

Answer 29

35 KIAS

Question 30

What is category A approach and LDP speed & HAT?

Answer 30

45 KIAS @ 200'

Question 31

What is IFR approach speed range?

Answer 31

60 to 130 KIAS

Question 32

What is VNE with sliding cabin door open?

Answer 32

125 KIAS

Question 33

What is the max rate of hover turn?

Answer 33

30° / sec (360° in 12 secs)

Question 34

What is the max speed with OEI?

Answer 34

75-90 KIAS

Question 35

At what speed should Flight Director be coupled?

Answer 35

>= 60 KIAS

Question 36

When is heading controlled by yaw vs roll?

Answer 36

* Yaw: <= 60 KIAS * Roll: > 60 KIAS

Question 37

What is empty weight?

Answer 37

~7,350 lbs

Question 38

What is MGTOW?

Answer 38

11,700 lbs at 35°C

Question 39

What is max cabin and baggage floor loading per sq/ft?

Answer 39

75 lbs

Question 40

What is max baggage compartment weight?

Answer 40

600 lbs

Question 41

What is the fuel burn rate?

Answer 41

700 lbs / hr @ 135 KIAS

Question 42

At what temperature does the battery hot light illuminate?

Answer 42

63°C

Question 43

At what temperature does the battery hot light extinguish?

Answer 43

52°C

Question 44

What is the aircraft operating temperature?

Answer 44

-34°C to ISA + 37°C...not to exceed 49°C

Question 45

What authority do the Autopilot's linear actuators have?

Answer 45

5% ## Footnote Equals stroke of ±8 mm

Question 46

What amount of pitch and roll does the small trim (Chinese hat) provide?

Answer 46

* 2° / sec pitch * 3° / sec roll

Question 47

What authority do the Flight Director's rotary trim actuators have?

Answer 47

Full authority

Question 48

What is the fuselage width?

Answer 48

7'

Question 49

What is the width of the main landing gear?

Answer 49

* Inner: 8' * Outer: 8' 5 1/2"

Question 50

What is the diameter of the main rotor?

Answer 50

44'

Question 51

Main rotor clearance at 107% Nr

Answer 51

8'

Question 52

Main rotor clearance at idle?

Answer 52

6' 3.2"

Question 53

What type of rotor is the main rotor?

Answer 53

Fully articulated: feather, flap, lead, lag

Question 54

What are the 5 sub-assemblies of the main rotor?

Answer 54

* Bifilar: vibration absorber absorbs 3-per and 5-per vibrations * Blades: 19’ * Controls * Head * Swash plate: prevents disymmetry of lift

Question 55

What is the diameter of the tail rotor?

Answer 55

8'

Question 56

Height of tail rotor?

Answer 56

14' 5/8"

Question 57

What type of rotor is the tail rotor?

Answer 57

Semi-articulated: no lead or lag

Question 58

How many blades does the main rotor have?

Answer 58

4

Question 59

How many blades does the tail rotor have?

Answer 59

2 (4 edges)

Question 60

What is the overall length (main rotor to tail rotor)

Answer 60

52' 6"

Question 61

Width of horizontal stabilizer?

Answer 61

10'

Question 62

What is the distance from the pilot to the front of the disc?

Answer 62

12'

Question 63

Distance from the pilot's head to the main wheels?

Answer 63

12'

Question 64

Distance from pilot's head to the back of the tail rotor?

Answer 64

40' 6"

Question 65

Fuel split between each tank up to 200 pounds allows for what?

Answer 65

More freedom to arrange cargo and passengers as desired while keeping aircraft within CoG limits

Question 66

What are the critical surfaces?

Answer 66

* Main rotor blade * Tail rotor blade * Horizontal stabilizer * Vertical tail stabilizer * Upper fuselage forward of the engines

Question 67

What are the aircraft flight restrictions?

Answer 67

* No Aerobatics * No flight into known icing conditions * Snow Protection Kit required for blowing or falling snow

Question 68

What and where is the blow down bottle?

Answer 68

* For **emergency landing gear extension** * Red T-handle marked EMER DN - TURN & PULL located on the landing gear control panel * Air container with charging valve and pressure gauge is in electronics compartment * Pressurized to **2,700-3,200 psi**

Question 69

What is the max speed and altitude to blow down the landing gear?

Answer 69

* 75 KIAS * 500' AGL

Question 70

The float system includes how many bottles and what psi are they charged to?

Answer 70

* **4 bottles** (2 front - 2 main) * Charged to **2500 to 3500 psi** * Inflate within 5 secs (helium) or 7 to 10 secs (nitrogen)

Question 71

What fire equipment is in the engine bays?

Answer 71

4 photocell detectors * 2 per engine bay - one fore and one aft * Combo of IR detectors and 3 Hz flicker rate detectors 2 x Fire extinguishers * 1 in each engine bay * **520 - 720 psi**

Question 72

Do the TGB and IGB chip detectors have fuzz burn?

Answer 72

Yes, but disabled above 140° C

Question 73

What are the engine oil pressure limitations in flight?

Answer 73

* Min: 24 psi, only at N1 < 85% * Precautionary: 24 to 29 psi * Normal: 29 to 87 psi * Precautionary: 87 to 142 psi w/ temp <4°C

Question 74

What are the engine oil pressure limitations at ground idle?

Answer 74

Min: 10 psi

Question 75

What are the engine oil temperature limits?

Answer 75

* Min: -10°C * Normal: 0°C to 115°C * Max: 115°C

Question 76

What are the MGB temperature limits?

Answer 76

* Min: -20°C * Normal: 15°C to 120°C * Max: 135°C

Question 77

What are the MGB oil pressure limits?

Answer 77

* Min: 20 psi * Normal: 50 to 90 psi * Max: 120 psi

Question 78

What MGB oil pressure triggers the MGB XMSN OIL PRESS warning?

Answer 78

* 14 psi

Question 79

What is ideal speed with a damaged tail rotor?

Answer 79

100 KIAS