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Bell 407 S/N 53000 THROUGH 54299 > LIMITATIONS > Flashcards

LIMITATIONS Flashcards

1
Q

FLIGHT CREW

A

Minimum flight crew consists of one pilot who
shall operate helicopter from right crew seat.

Left crew seat may be used for an additional
pilot when approved dual controls are
installed.

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2
Q

WEIGHT

Maximum approved internal GW for takeoff and landing is

A

5000 pounds (2268 kg).

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3
Q

WEIGHT

Minimum GW for flight is

A

2650 pounds (1202 kg).

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4
Q

WEIGHT

Minimum weight at fuselage station 65.0 is

A

170 pounds (77.1 kg).

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5
Q

WEIGHT

Maximum approved GW for flight with jettisonable external load is

A

6000 pounds (2722 kg).

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6
Q

WEIGHT

CAUTION

A

LOADS THAT RESULT IN GW ABOVE 5000 POUNDS (2268 KG) SHALL BE CARRIED ON THE CARGO HOOK AND MUST BE
JETTISONABLE.

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7
Q

AIRSPEED

Basic VNE is

A

140 KIAS, sea level to 3000 feet HD. Decrease VNE for ambient conditions in accordance with AIRSPEED LIMITATIONS Placards and Decals (Figure 1-3).

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8
Q

AIRSPEED

VNE at 93.5 to 100% TORQUE (takeoff power) is

A

100 KIAS, not to exceed placarded VNE.

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9
Q

AIRSPEED

When takeoff loading is in shaded area of the Gross Weight Lateral Center of Gravity Limits (Figure 1-2).

A

VNE is 100 KIAS or placarded VNE, whichever is less

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10
Q

AIRSPEED

With any door(s) removed

A

VNE is 100 KIAS not to exceed placarded VNE.

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11
Q

AIRSPEED

For steady state autorotation.

A

VNE is 100 KIAS or placarded VNE, whichever is less

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12
Q

AIRSPEED

Maximum allowable airspeed for sideward and rearward flight or crosswind hover is

A

35 KTAS.

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13
Q

ALTITUDE

Maximum operating altitude is

A

20,000 feet HD or 20,000 feet HP, whichever is lower.

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14
Q

PROHIBITED MANEUVERS

A

Aerobatic maneuvers are prohibited.

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15
Q

CLIMB AND DESCENT

A

Maximum rate of climb is 2000 feet per minute.

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16
Q

SLOPE LANDING

CAUTION

A

SLOPE LANDINGS HAVE BEEN DEMONSTRATED TO THE SLOPE LANDING LIMITS. OTHER CONDITIONS INCLUDING, BUT NOT LIMITED TO, WIND DIRECTION AND VELOCITY, CENTER OF GRAVITY, AND THE CONDITION OF THE SLOPE (LOOSE ROCK, SOFT MUD, SNOW, WET GRASS, ETC.) MAY LIMIT MAXIMUM SLOPE TO A VALUE LESS THAN THE PUBLISHED LIMITS.

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17
Q

SLOPE LANDING

Slope landings are limited to

A

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

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18
Q

AMBIENT TEMPERATURES

Maximum sea level ambient air temperature for operation is

A

51.7°C (125°F) and decreases with HP at standard lapse rate of 2°C (3.6°F) per 1000 feet. Refer to Ambient Air Temperature Limitations chart (Figure 1-4).

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19
Q

AMBIENT TEMPERATURES

Minimum ambient air temperature for operation at all altitudes is

A

-40°C (-40°F)

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20
Q

AMBIENT TEMPERATURES

ENG ANTI ICE

A

Shall be ON in visible moisture when OAT is below 5°C (40°F).

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21
Q

GENERATOR

Up to 10,000 feet Hp

A

Continuous operation
0 to 180 amps
Maximum continuous
180 amps

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22
Q

GENERATOR

Above to 10,000 feet Hp

A

Continuous operation
0 to 170 amps
Maximum continuous
170 amps

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23
Q

GENERATOR

Transient

A

Transient, 2 minutes
180 to 300 amps
Transient, 5 seconds 300 to 400 amps

24
Q

STARTER

External Power Start

A 
40 seconds ON 
30 seconds OFF 
40 seconds ON 
30 seconds OFF 
40 seconds ON 
30 minutes OFF
25
Q

STARTER

Battery Start

A 
60 seconds ON
60 seconds OFF
60 seconds ON
60 seconds OFF
60 seconds ON
30 minutes OFF
26
Q

STARTER

NOTE

A

28 VDC GPU for starting shall be limited to 500 amps.

27
Q

POWER PLANT

NOTE

A

Intentional use of any power transient is prohibited.

28
Q

GAS PRODUCER RPM (NG)

NOTE

A

FADEC will limit NG in accordance with GAS PRODUCER RPM (NG) LIMIT placard. NR decay will result if power demand exceeds placard limit.

29
Q

GAS PRODUCER RPM (NG)

A 
Continuous operation 
63 to 105% 
Maximum continuous operation
105%
Transient, 10 seconds 
105.1 to 106%
30
Q

POWER TURBINE RPM (NP)

NOTE Engine Overspeed

A

ENGINE OVSPD warning light will illuminate when NP versus TORQUE is between 102.1% NP at 100% TORQUE and 108.6% NP at 0% TORQUE.

31
Q

POWER TURBINE RPM (NP)

NOTE MANUAL mode

A

When operating in MANUAL mode NP should be maintained between 95 and 100%.

32
Q

MEASURED GAS TEMPERATURE (MGT)

GAUGE P/N 407-375-001-101/-103

A 
Continuous operation 
100 to 727°C
Maximum continuous 
727°C
Takeoff, 5 minutes 
727 to 779°C
Maximum for takeoff 
779°C
Transient, 12 seconds 
780 to 826°C
Maximum starting, do not exceed  10 seconds above 
826°C or 1 second at 927°C.
33
Q

MEASURED GAS TEMPERATURE (MGT)

GAUGE P/N 407-375-001-105 AND SUB

A 
Continuous operation 
100 to 727°C
Maximum continuous 
727°C
Takeoff, 5 minutes 
727 to 779°C
Maximum for takeoff 
779°C
Transient, 12 seconds 
780 to 905°C
Maximum starting, do not exceed  10 seconds above 
843°C or 1 second at 927°C.
34
Q

ENGINE TORQUE

A 
Continuous operation 
0 to 93.5%
Maximum continuous 
93.5%
Takeoff, 5 minute 
93.5 to 100%
Transient, 5 seconds 
105%
35
Q

ENGINE TORQUE

NOTE

A

Use of takeoff power is limited to 100 KIAS, not to exceed placarded VNE.

36
Q

FUEL PRESSURE

A 
Minimum 
8 PSI
Continuous operation 
8 to 25 PSI
Maximum 
25 PSI
37
Q

ENGINE OIL PRESSURE

A 
50 PSI Minimum
50 to 90 PSI Operation below 79% NG RPM
90 to 115 PSI Continuous operation below 94% NG RPM
115 to 130 PSI Continuous operation
130 PSI Maximum for continuous operation
200 PSI Maximum for cold start
38
Q

ENGINE OIL PRESSURE

NOTE

A

When 130 PSI is exceeded during start, operate engine at idle until oil pressure drops below 130 PSI.

39
Q

ENGINE OIL TEMPERATURE

A

Continuous operation
0 to 107°C
Maximum
107°C

40
Q

ENGINE OIL TEMPERATURE

NOTE hovering with a tailwind

A

If hovering with a tailwind greater than 10 knots at OAT above 37.8°C (100°F), closely monitor engine oil temperature. The oil temperature may be reduced by either turning into wind, reducing power or transition to forward flight.

41
Q

ENGINE OIL TEMPERATURE

NOTE Positive temperature indication

A

Positive temperature indication is when the second segment of the trend arc is illuminated.

42
Q

TRANSMISSION OIL PRESSURE

A 
Minimum 
30 PSI
Continuous operation 
40 to 70 PSI
Maximum 
70 PSI
43
Q

TRANSMISSION OIL TEMPERATURE

A

Continuous operation
15 to 110°C
Maximum
110°C

44
Q

ROTOR RPM — POWER ON

A

Continuous operation
99 to 100%
Maximum continuous
100%

45
Q

ROTOR RPM — POWER ON

NOTE

A

When operating in MANUAL mode NR should be maintained between 95% and 100%.

46
Q

ROTOR RPM — POWER OFF

A 
Minimum 
85%
Continuous operation 
85 to 107%
Maximum 
107%
47
Q

ROTOR RPM — POWER OFF

CAUTION

A

FOR AUTOROTATIVE TRAINING, MAINTAIN STEADY STATE NR ABOVE 90%.

48
Q

HYDRAULIC

Hydraulic fluid

A

Hydraulic fluid MIL-PRF-5606 (NATO H-515) may be used at all ambient temperatures.

49
Q

FUEL

Fuel conforming to following specifications may be used at all ambient temperatures:

A

ASTM-D-6615, Jet B

MIL-DTL-5624, Grade JP-4 (NATO F-40)

50
Q

FUEL

Fuels conforming to following specifications are limited to ambient temperatures of -32°C (-25°F) and above:

A

ASTM-D-1655, Jet A or A-1
MIL-DTL-5624, Grade JP-5 (NATO F-44)
MIL-DTL-83133, Grade JP-8 (NATO F-34)

51
Q

OIL — ENGINE

NOTE

A

Refer to Rolls-Royce Operation and Maintenance Manual and BHT-407-MD-1 manual for approved oils and mixing of oils of different brands, types, and manufacturers.

52
Q

OIL — ENGINE

Temperatures above -40°C (-40°F).

A

Oil conforming to MIL-PRF-7808 (NATO O-148), DOD-PRF-85734 or MIL-PRF-23699 (NATO O-156) is limited to ambient temperatures above -40°C (-40°F).

53
Q

OIL — TRANSMISSION AND TAIL ROTOR GEARBOX

NOTE

A

It is recommended DOD-PRF-85734 oil be used in transmission and tail rotor gearbox to maximum extent allowed by temperature limitations.

54
Q

OIL — TRANSMISSION AND TAIL ROTOR GEARBOX

Temperatures above -40°C (-40°F).

A

Oil conforming to DOD-PRF-85734 is limited to ambient temperatures above -40°C (-40°F).

55
Q

OIL — TRANSMISSION AND TAIL ROTOR GEARBOX

Temperatures below -18°C (0°F).

A

Oil conforming to MIL-PRF-7808 (NATO O-148) is limited to ambient temperatures below -18°C (0°F).

56
Q

ROTOR BRAKE

A

Rotor brake (if installed) application is limited to ground operation after engine has been shut down and NR has decreased to 40% or lower. For emergency stops, apply rotor brake any time after engine is shut down. Engine starts with rotor brake engaged are prohibited.

Bell 407 S/N 53000 THROUGH 54299 (1 decks)

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