Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
TYPES OF OPERATION
PASSENGERS |
Basic configured helicopter is approved for
seven place seating and is certified for land operation under day or night VFR non-icing conditions. |
|
CARGO LIMITS
|
The maximum allowable cabin deck loading for cargo is 75 pounds per square foot (3.7 kg per 100 cm2). The maximum allowable
baggage compartment deck loading is 86 pounds per square foot (4.2 kg per 100 cm2) with a maximum allowable weight of 250 pounds (113.4 kg). Refer to BHT-407-MD-2 for cargo restraint and tie-down locations. |
|
FLIGHT CREW
|
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. |
|
REQUIRED EQUIPMENT
|
An operative headset is required for each pilot.
A functional flashlight is required for night flights. |
|
1-5-C. DOORS REMOVED
|
Indicated altitude may be up to 100 feet lower than actual altitude with crew door(s) removed.
Flight with any combination of doors removed is approved. With litter door removed, left passenger door shall be removed. Refer to airspeed limitations. With door(s) removed, determine weight change and adjust ballast if necessary. Refer to Section 5 |
|
1-6-A. WEIGHT
|
Maximum approved internal GW for takeoff and landing is 5250 pounds( FMS 28).
Minimum GW for flight is 2650 pounds. Maximum external 6000 pounds. |
|
1-7. AIRSPEED- VNE's
|
Basic VNE 140KT up to 3000FT HD then use VNE table. VNE at 93.5 to 100% torque (takeoff power) is 100 KIAS, not to exceed placarded VNE. VNE is 100 KIAS or placarded VNE, whichever is less, when takeoff loading is in shaded area of the Gross Weight Lateral Center of Gravity Limits (Figure 1-2). VNE is 100 KIAS with any door(s) removed, not to exceed placarded VNE. VNE is 100 KIAS or placarded VNE, whichever is less for steady state autorotation. |
|
1-9-C. SLOPE LANDING
|
Slope landings are limited to 10° side slopes, 10° nose up slope, or 5° nose down slope
|
|
1-11. AMBIENT TEMPERATURES
|
Maximum sea level ambient air temperature for operation is 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).
Minimum ambient air temperature for operation at all altitudes is -40°C (-40°F). |
|
1-12-A. GENERATOR
|
1-12. ELECTRICAL
1-12-A. GENERATOR Continuous operation, up to 10,000 feet Hp: 0 to 180 amps Maximum continuous up to 10,000 feet Hp: 180 amps Continuous operation, above 10,000 feet Hp 0 to 170 amps Maximum continuous above 10,000 feet Hp.: 170 amps Transient, 2 minutes180 to 300 amps Transient, 5 seconds300 to 400 amps |
|
1-13. POWER PLANT
|
Rolls-Royce model 250-C47B.
674 HP at 100% Tq 630 HP at 93.5% Tq |
|
1-13-A. GAS PRODUCER RPM (NG)
NOTE FADEC will limit NG when operating above 10,000 feet HP and with OAT below -30°C (-22°F). NR decay will result if power demand exceeds NG limit. Condition annunciated with NG OAT LIMIT message. |
|
|
1-13-B. POWER TURBINE RPM (NP)
|
Avoid continuous 68.4 to 87.1%
operations Minimum 99% Continuous operation 99 to 100% Maximum continuous 100% Maximum transient, 102.1 to 107.3% 15 seconds NOTE ENGINE OVSPD warning message will illuminate when Np is greater than 102.1% for 2.5 seconds or 107.3% immediately. NOTE When operating in MANUAL mode, Np should be maintained between 95 and 100%. |
|
1-13-C. MEASURED GAS TEMPERATURE (MGT)
|
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 927° C, do not exceed 10 seconds above 843° C or 1 second at 927° C. |
|
1-13-D. ENGINE TORQUE
|
Continuous operation 0 to 93.5%
Maximum continuous 93.5% Takeoff, 5 minute 93.5 to 100% Transient, 5 seconds 105% NOTE Use of takeoff power is limited to 100 KIAS, not to exceed placarded VNE. |
|
1-13-E. FUEL PRESSURE
|
Minimum 8 PSI Continuous operation 8 to 25 PSI Maximum 25 PSI |
|
1-13-F. ENGINE OIL PRESSURE
|
Minimum below 79% NG 50 PSI
Minimum from 79 to 90 PSI 94% NG Minimum above 94% NG 115 PSI Maximum 130 PSI Maximum cold starts only 200 PSI NOTE When 130 PSI is exceeded during start, operate engine at idle until oil pressure drops below 130 PSI. |
|
1-13-G. ENGINE OIL TEMPERATURE
|
Continuous operation 0 to 107° C Maximum 107° C NOTE 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. |
|
1-14-A. TRANSMISSION OIL PRESSURE
|
Minimum 30 PSI
Idle operation only 30 to 40 PSI Continuous operation 40 to 70 PSI Maximum 70 PSI |
|
1-14-B. TRANSMISSION OIL TEMPERATURE
|
Continuous operation 15 to 110° C
Maximum 110° C |
|
1-15-A. ROTOR RPM-POWER ON
|
Continuous operation 99 to 100%
Maximum continuous 100% NOTE When operating in MANUAL mode, NR should be maintained between 95% and 100%. |
|
1-15-B. ROTOR RPM-POWER OFF
|
Minimum 85%
Continuousoperation 85 to 107% Maximum 107% CAUTION FOR AUTOROTATIVE TRAINING, MAINTAIN STEADY STATE NR ABOVE 90%. |
|
1-18. ROTOR BRAKE
|
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. |