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Bell 407 Study > Bell 407GX Performance & Limits > Flashcards

Bell 407GX Performance & Limits Flashcards

1
Q

How does Bell define a “run on landing”?

A

landing with forward ground travel greater than 3 feet with weight on the skids.

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2
Q

Max Allowable cabin deck loading?

A

75 lbs/sq.ft.

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3
Q

Max Allowable baggage compartment deck loading?

A

86 lbs/sq.ft. Max 250lbs

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4
Q

Max internal gross weight?

A

5000 lbs.
5250 lbs with FMS-12

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5
Q

VNE - Basic?

A

140 KIAS up to 3000’ DA
Decreases with altitude per placard.

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6
Q

VNE - Takeoff power?

A

100 KIAS (or placard if less)
TQ between 93.5 and 100.0%

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7
Q

VNE - Doors removed?

A

100 KIAS (or placard if less)

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8
Q

VNE - Autorotation?

A

100 KIAS (or placard if less)

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9
Q

Max allowable airspeed for sideward or rearward flight (or crosswind hover)?

A

35 KIAS

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10
Q

Max Operating Altitude?

A

20,000 DA or PA, whichever is lower

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11
Q

Max Rate of Climb?

A

2000 ft/min

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12
Q

Slope Landing Limits?

A

10° side slopes
10° nose up-slope
5° nose down-slope

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13
Q

When shall ENG ANTI ICE be ON

A

In visible moisture when OAT is below 5°C (40°F)

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14
Q

Generator Load Limits?
(180 amp)

A

0 to 180 Continuous up to 10,000 ft PA
0 to 170 Continuous >= 10,000 ft PA
180-300 2-minute transient
300-400 5 second transient

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15
Q

Starter Limits
(External Power)

A

40s - ON / 30s - OFF
3 attempts
30min - OFF

Note: 28 VDC GPU limited to 500 amps

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16
Q

Starter Limits
(Battery Power)

A

60s - ON/OFF
3 attempts
30min OFF

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17
Q

NG - Gas Producer Limits

A

63 to 105% - Continuous
105.1 to 106.5% - 10sec transient

18
Q

NP - Power Turbine Limits

A

99 to 100% - Continuous
102.1 to 107.3% - 15 sec transient

68.4 to 87.1% - avoid continuous operation

19
Q

Under what NP conditions will ENGINE OVSPD warning message illuminate?

A

102.1% for 2.5 sec
-or-
107.3% immediately

20
Q

When operating in MANUAL mode, NP should be maintained at what speed?

A

95 to 100%

21
Q

MGT Limits?
(flight operations)

A

100 to 727°C - Continuous
727 to 779°C - Takeoff, 5 minutes
780 to 905°C - Transient, 12 seconds

22
Q

MGT Starting Limits?

A

Do not exceed:
10 seconds above 843°C
-or-
1 second at 927°C

23
Q

Engine Torque Limits?

A

0 to 93.5% - Continuous
93.5 to 100% - Takeoff, 5 minutes
105% - Transient, 5 seconds

24
Q

Fuel Pressure Limits?

A

8 to 25 PSI continuous

25
Q

Engine Oil Pressure Limits?

A

50 PSI min NG < 79%
90 PSI min NG = 79-94%
115 PSI min NG > 94%
130 PSI max
200 PSI cold starts only

26
Q

Engine Oil Temperature?

A

0 to 107°C - Continuous

27
Q

What are the Engine Oil Temp considerations when hovering with a tail wind?

A

Tailwind > 10 kts
OAT > 37.8°C (100°F)
Monitor temp. Reduce power, nose into wind, or fwd flight to cool down.

28
Q

XMSN Oil Pressure Limits?

A

30 PSI - min
30-40 PSI - idle ops
40-70 PSI - continuous
70 PSI - max

29
Q

XMSN Oil Temperature Limits

A

15 to 110°C - continuous

30
Q

Rotor RPM - Power ON

A

99 to 100% - continuous

31
Q

Rotor RPM - MANUAL mode

A

95 to 100%

32
Q

Rotor RPM - Power OFF

A

85 to 107%
CAUTION >90% for training

33
Q

Rotor Brake Limits?

A

NR < 40%
Apply as necessary for emergency stops
Starts with brake on are prohibited

34
Q

Useable Fuel Capacity (gallons and pounds)

A

127 gallons
869 lbs

35
Q

Define VH

A

The airspeed in level flight obtained using min.spec engine TQ corresponding to max continuous power at sea level and 25°C / 77°F

VH = 127 KIAS

36
Q

Minimum Battery Voltage for Start

A

24 volts
Starting below 24 may result in hot start

37
Q

For start, how long can throttle be in idle position before starter latching is disabled?

A

60 seconds.
If exceeded, close throttle then return to idle.

38
Q

After a start, under what conditions should you stabilize at idle for 1 minute?`

A

If engine has been shutdown for more than 15 minutes

39
Q

During start, what are the key call outs/things to watch?

A

25% NG - Rotors turning
50% NG - START msg extinguished
55% NG - Engine msg extinguished
60% NG - AUTO RELIGHT msg extinguished

40
Q

With generator on, what is the normal voltage?

A

28 VDC ± 0.5

41
Q

At what total fuel indication is the forward tank full?

A

770 lbs (appx)

42
Q

At what total fuel indication is fuel transfer complete?

A

193 lbs (appx)

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