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Bell 206B > Limitations > Flashcards

Limitations Flashcards

1
Q

Max Gross Weight Internal Load

A

3200 lbs @ 75 psf

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2
Q

Max Gross Weight External Load

A

3350 lbs

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3
Q

Max Gross Weight – Fixed Floats

A

3000 lbs

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4
Q

Max Gross External Load – Fixed Floats

A

3350 lbs

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5
Q

Max Cargo Hook Load

A

1500 lbs

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6
Q

Max Fixed Cargo Hook Load

A

1200 lbs

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7
Q

Minimum Cockpit Weight

A

170 lbs

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8
Q

Maximum Cockpit Weight

A

550 lbs

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9
Q

Maximum Baggage Compartment Weight

A

250 lbs @ 86 psf

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10
Q

Min Approved Empty Wt (C of G Calc required)

A

1500 lbs

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11
Q

Minimum Cockpit Weight with Range Extender

A

200 lbs

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12
Q

Maximum Cockpit Weight with Range Extender

A

400 lbs

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13
Q

Maximum Aft Passenger Weight with Range Extender

A

510 lbs

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14
Q

Max Bag Compartment Wt With 3 Rear Pax and Range Extender

A

110 lbs

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15
Q

Max Alt GW < 3000 Lbs

A

20,000’ PA

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16
Q

Max Alt GW > 3000 Lbs

A

13,500’ DA

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17
Q

Max Alt Fixed Floats

A

15,000’ PA

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18
Q

Pressure Altitude

A

Alt shown with alt set to 29.92

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19
Q

Density Altitude (Pa corrected for Temp)

A

Pa + (100x(actual T° - standard T°))

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20
Q

ICAO Standard Day

A

15°C at SL (-2°/1000’)

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21
Q

Vne Power On < 3000 lbs

A

150 mph < 3000 lbs (-4 mph /1000’ > 3000’)

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22
Q

Vne Power On > 3000 lbs

A

140 mph > 3000 lbs (-8 mph/1000’ > 3000’)

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23
Q

VNE Auto

A

115 mph a/s >=high rate of descent/low Nr

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24
Q

VNE Aft doors off

A

100 mph (-1 mph/1000’ > 3000’)

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25
Q

VNE Front doors off

A

80 mph (-1 mph/1000’ > 3000’)

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26
Q

VNE Takeoff torque 85%-100%

A

92 mph (upper mast bearing wear/mast bending)

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27
Q

VNE – Fixed Floats

A

120 mph (-5 mph/1000’ > 3000’)

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28
Q

VNE – Fixed Floats – Autorotation

A

100 mph

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29
Q

VNE – Fixed Floats – left FWD door removed

A

90 mph

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30
Q

VNE - Cargo Hook & Gross Weight > 3000 lbs

A

91 mph

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31
Q

Best Rate of Climb

A

60 mph

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32
Q

Min Rate of Descent

A

60 mph

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33
Q

Maximum Glide Configuration

A

80 mph / 90% Rotor RPM

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34
Q

Max Sideways/X-wind

A

20 mph

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35
Q

Max Rearwards

A

20 mph

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36
Q

Take Off Power Limits Tq, TOT, N1

A

Tq 100% TOT 810°C N1 105% for 5 minutes

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37
Q

N2 – Power Turbine Power On

A

97 – 100%

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38
Q

N2 – Power Turbine Transient

A

105% for 15 sec

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39
Q

N2 – Power Turbine Avoid continuous ops between

A

75-88% N2 above 30% Tq Max 60 sec

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40
Q

N2 – Power Turbine Flight Idle Autorotation

A

98% N2

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41
Q

N2 – Power Turbine drives

A

N2 tach gen, gearbox, accessories

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42
Q

Nr - Rotor Power On

A

97 – 100%

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43
Q

Nr - Rotor Power Off (autorotation)

A

90 – 107% (high Nr=max rotor energy for landing but will increase rate of descent)

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44
Q

Nr - Rotor Autorotation touchdown min

A

Prior to 70% Nr

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45
Q

Nr - Rotor Transient RPM Droop

A

95% for max 5 sec

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46
Q

Nr - Rotor Acceleration Range (aqap with cyclic neutral)

A

50-60% Nr to avoid t/r resonance

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47
Q

Rotor Brake Actuation Speed

A

38%-30% Nr

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48
Q

Rotor brake limit prevents

A

Excessive brake wear/overheating
Stress on gear boxes
Uncontrolled rotation on slippery surfaces

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49
Q

Main Blade Tip Tie-down load

A

Max 100 lbs

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50
Q

Main Blade Tip Tie-down deflection

A

Max 24”

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51
Q

Main rotor

A

Semi-rigid system (flaps & feathers)

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52
Q

Main rotor mast tilt longitudinal

A

Fwd 5° for level fuselage when disc tilted fwd

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53
Q

Main rotor mast tilt lateral

A

Left 1.5° to allow for t/r drift

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54
Q

Main rotor diameter

A

33’ 4”

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55
Q

Main rotor rpm at 100% N2

A

394 rpm

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56
Q

N1 - Gas Producer Max

A

105%

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57
Q

N1 - Gas Producer Transient

A

106% for 15 seconds

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58
Q

N1 - Gas Producer Drives

A

Eng fuel pump, N1 tach gen, oil pumps, starter/gen, Air/oil separator, gear train in the accessory gate

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59
Q

Tq - Torque Take Off

A

100% for 5 minutes

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60
Q

Tq - Torque Transient

A

110% for 5 seconds

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61
Q

Tq - Torque Max Continuous

A

85%

62
Q

TOT Continuous

A

100-738°C

63
Q

TOT Take Off

A

738-810°C for 5 minutes

64
Q

TOT Power Transient

A

810-843°C for 6 seconds

65
Q

TOT Start

A

810-927°C for 10 sec/927 for 1 sec

66
Q

TOT Residual TOT max prior to start

A

<150°C

67
Q

TOT Exceeding 810°C or Tq 100% may cause

A

N1 topping and rotor droop

68
Q

Engine Anti-Ice/Pitot Heat

A

OAT > 4.4°C

69
Q

Engine Anti-Ice/Pitot Heat

A

Visible Moisture AND OAT < 4.4°C

70
Q

Engine Anti-Ice Test

A

Rise of 10-20°C

71
Q

Engine Anti-Ice

A

inlet guide vanes/front bearing support hub

72
Q

Tail Rotor Feather bearing free play

A

¼” at Blade tip

73
Q

Tail Rotor Pitch Change Link Radial & Axial Free play

A

10/1000”

74
Q

Tail Rotor Clearance between blade tip and tail boom skin

A

1”

75
Q

Tail Rotor Design

A

Delta hinge

76
Q

Snow Baffles (Engine Air Induction System Deflector Kit) Additional Mandatory Equipment

A 
Particle Separator
Engine Relight (not above 12,000`)
77
Q

Snow Baffles (Engine Air Induction System Deflector Kit) Hover/Flight/Ground Ops in blowing/falling snow

A

20 minutes with vis > ½ mile

78
Q

Snow Baffles (Engine Air Induction System Deflector Kit) Ground Idle Operation

A

5 minutes (shutdown and inspection required)

79
Q

Snow Baffles (Engine Air Induction System Deflector Kit) Snow Baffle Removal

A

26.7°c

80
Q

Starter Limitation - battery start

A

40s/60s ; 40s/60s ; 40s/30 min

81
Q

Starter Limitation - external Power

A

25s/30s ; 25s/30s ; 25s/30 min

82
Q

Load Meter Maximum

A

70%

83
Q

External Power Supply required

A

28v 400a

84
Q

Generator Output

A

30v 100/150a derated to 105a

85
Q

Generator driven from

A

engine reduction gearbox Compressor access drive

86
Q

Battery – max temp

A

60°C

87
Q

Battery

A

24v 13 amp-hour or 17 amp-hour

88
Q

Cargo Hook Max GW

A

3350 lbs

89
Q

Cargo Hook Max capacity

A

1200/1500 lbs

90
Q

Cargo Hook Vne > 3000 lbs

A

91 mph

91
Q

Cargo Hook Cautions

A

Check slung load clearance and obstacles
Avoid flight over people/vehicles/structures
High hover till cargo touches ground then maintain tension and press cargo release

92
Q

Power Plant Allison Turbine or Rolls Royce

A

Model 250-C20B or 250-C20J

93
Q

Power Plant Shaft Horsepower

A

420 d/r to 317 (t/o) 270 (max cont)

94
Q

Power Plant 2 stage compressor

A

Axial & centrifugal ratio 6:1

95
Q

Power Plant Compressor on start

A

Driven by generator

96
Q

Power Plant Compressor after start

A

Driven by N1 gas producer

97
Q

Power Plant N2 drives

A

Gearbox and accessories

98
Q

C OF G Forward - Aft

A

106.0 forward – 114.2 aft

99
Q

C OF G Left - Right

A

3.0 left 4.0 right

100
Q

C OF G Fore/Aft with one or both front doors off or front/rear combo off

A

106.0 forward – 110.0 aft

101
Q

C OF G vs Fuel burn

A

Moves forward with fuel burn

102
Q

C OF G Datum (Station 0)

screws on pitot tube mount

A

55.16” fwd of fwd jackpoint centerline

103
Q

C OF G Calculation

must be calc with fwd doors removed

A

Wt x arm = moment

total moment ÷ total wt = total arm

104
Q

C OF G Rate of climb reduction with any door off

A

-350 fpm

105
Q

OAT Temp limits min

A

-40°C

106
Q

OAT Temp limits max

A

+52°C at SL - 2°/1000’

107
Q

Altitude Limits

A

SL – 20,000 PA

108
Q

Certified Noise Level

A

82.6 dBA

109
Q

Width

A

6.28 ft

110
Q

Length

A

39.21 ft

111
Q

Height

A

11.63 ft

112
Q

Engine Oil Capacity

A

5.5 qt MIL-PRF23699 >-40°C /MIL-PRF7808

113
Q

Transmission/Freewheel Oil Capacity

A

5 qt

114
Q

Tail Rotor Gear Box Oil Capacity

A

0.38 Pint

115
Q

Log Book Entry Required each time

A

eng/trans/trgb oil added Brand/type/quantity

116
Q

Engine Oil pressure range

A

50-130 psi

117
Q

Engine Oil Pressure Minimums
< 78.5 N1
78.5 - 94.2 N1
> 94.2 N1

A

50 psi
90 psi
115 psi

118
Q

Engine Oil temp range

A

0-107°C

119
Q

Freewheel oil supply

A

Main gear box

120
Q

Hydraulic Capacity

A

1 Pint

121
Q

Hydraulic Fluid pressure range

A

600 +/- 25 psi

122
Q

Hydraulic pump driven from

A

Main rotor gear box

123
Q

Fuel Capacity Standard Tank

A

77.06 US Gallons

124
Q

Unusable Fuel Standard Tank

Boost Pumps On

A

1.06 US Gallons

125
Q

Fuel Capacity Large Tank

A

92.06 US Gallons

126
Q

Unusable Fuel Large Tank

Boost Pumps On

A

1.03 US Gallons

127
Q

Fuel Capacity Range Extender

A

96.70 US Gallons

check gauge each 15 min

128
Q

Unusable Fuel with Range Extender

Boost Pumps On

A

1.06 US Gallons

129
Q

Unusable Fuel – 1 or 2 Boost Pumps Off

A

10 US Gallons

130
Q

Average Fuel Consumption

A

30 Us Gallons / Hour

131
Q

Jet A (Limited to: OAT > -18°C)

A

6.8 lbs / US Gallon Jet A, Jet A1, JP5, JP8

132
Q

Jet B (May be used at all temperatures)

A

6.4 lbs / US Gallon Jet B, JP4

133
Q

Min Fuel press cold wx ops -18°C to -32°C

A

8 psi (Jet A, Jet A1, JP5, JP8) red triangle

134
Q

Heli with airframe fuel filter

A

Anti-icing additive not required at any temp

135
Q

Fuel Pump pressure range

A

4-30 psi

136
Q

Trans Oil pressure range continuous

A

30-50 psi

137
Q

Trans Oil pressure range max

A

70 psi

138
Q

Trans Oil temp range

A

15-110°C

139
Q

Transmission reduction ratio

A

6016 eng output rpm to 394 rotor rpm

140
Q

Pop Out Floats VNE Inflated Airspeed

A

80 mph

141
Q

Pop Out Floats VNE Autorotation Airspeed

A

70 mph

142
Q

Pop Out Floats VNE Inflation Airspeed

A

60 mph

143
Q

Pop Out Floats Max Inflation Altitude

A

<2000 ft agl

144
Q

Pop Out Floats Max Rate of Climb

A

1000 fpm

145
Q

Bleed Air Valve Location

A

5th stage compressor

146
Q

Bleed Air Valve During start, acceleration, low comp ratio ops

A

Open to unload compressor & prevent blade stall & surge

147
Q

Bleed Air Valve Closes at

A

Closes at 87% N1

148
Q

Bleed Air Heat Prohibited (8)

A

Eng fail, insufficient pwr, fcu/gov fail, eng overtemp, OAT>5°C, t/o, ldg, >85% Tq

149
Q

Bleed Air vs TOT

A

TOT will rise 20-50°C

150
Q

Carbon Monoxide Detector

A

Monitor

ventilate as required

Bell 206B (6 decks)

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