Bell 206L4 Performance & Limits Flashcards
How does Bell define a “torque event”?
Torque events are defined as a takeoff or lift, internal or external load. Torque events shall be recorded.
B206
Max allowable cabin deck loading?
75 lbs/sq.in.
B206
Max allowable baggage compartment deck loading?
86 lbs/sq.in.
B206
Max allowable baggage compartment weight?
250 lbs.
What equipment must be installed for operations in falling and/or blowing snow?
Snow Deflector Kit
B206
Max internal Gross Weight?
4450 lbs
B206 Basic Vne?
130 KIAS up to 3000 ft. DA
Decrease according to placard above 3000’
B206 Take off power Vne?
TORQUE 75-100%
84 KIAS
or placard, whichever is less.
B206 Doors off Vne?
90 KIAS
or placard, whichever is less.
B206 Autorotational Vne?
100 KIAS
or placard, whichever is less.
B206 Max operating altitude?
20,000 ft. PA
10,000 ft. DA if gross weight > 4150 lbs
Max ambient temp for engine anti-ice use?
5°C / 40°F
When shall ENGINE ANTI ICE and PITOT HEAT be ON?
When OAT < 5°C / 40°F
In visible moisture.
B206
When shall the fuel control heater valve be ON?
< 10°C / 50°F
B206
When shall the fuel control heater valve be OFF?
> 21°C / 70°F
B206 Generator load limits?
0 to 90% DC Load
0 to 180 amps
B206 Starter Limits?
(Both External & Battery)
External Power:
40s ON / 30s OFF - 3 attempts, then 30min OFF
Battery Start:
60s ON / 60s OFF - 3 attempts, then 30min OFF
GPU spec limits for external power?
28 VDC
500 amps
B206
Gas Producer (N1) Limits?
60/63 to 105% - Continuous*
106.5% - Transient, 10 seconds
*depends on Gauge P/N
B206 Power Turbine (n2) Limits?
71.8 - 91.5% - Avoid continuous ops
99-101% - continuous
104% - transient, 5 minutes
B206
TOT normal operating limits?
100 to 716°C - continuous
716 to 768°C - Takeoff, 5 minutes
871°C - Power-on transient, 10 seconds
B206 TOT start/shutdown limits?
Depends on gauge:
(older gauges)
768 to 927°C - do not exceed 10 sec
927°C - momentary peak, 1 second
(newer gauges)
826 to 927°C - do not exceed 10 sec
927°C - momentary peak, 1 second
B206
Engine Torque (Q) limits?
0 to 75% - continuous
75 to 100% - takeoff, 5 minutes
105% - transient, 5 seconds
B206
Fuel Pressure limits?
8 to 25 PSI
B206
Engine Oil Pressure limits?
50 PSI min - N1 <= 79%
90 PSI min - N1 <= 94%
115 PSI min - N1 > 94%
130 PSI max
B206
Engine Oil Temperature limits?
0 to 107°C
B206
Transmission Oil Pressure limits?
30 PSI min
40-70 PSI continuous
B206
Transmission Oil Temperature limits?
15 to 110°C - continuous
B206 Rotor RPM (Nr) Power On limits?
95% - transient, 5 seconds
99 to 101% - continuous
104% - transient, 5 minutes
B206 Rotor RPM (Nr) Power Off limits?
90 to 107% - continuous
B206
Rotor Brake Limits?
Apply between 38 and 30% Nr during coast down
Relative Wind Limits Area A:
Below 3000’ DA - IGE?
35 kts. all azimuths
Relative Wind Limits Area A:
Below 3000’ DA - OGE?
060° to 150° - (2 to 5 o’clock) - 30 kts.
150° to 060° - (all others) - 35 kts.
B206
Relative Wind Limits Area A:
Above 3000’ DA - IGE & OGE?
26 kts. all azimuths
B206 Relative Wind Limits Area B?
050° to 210° - (1 to 7 o’clock) - calm
|210° to 050° - (all others) - 26 kts.
Relative Wind Limits Area C?
315° to 045° - (10 to 2 o’clock) - 26 kts.
045° to 315° - (all others) - calm
