OMB Limitations Flashcards
What is Vy
80 kts
What is max airspeed with take off power
90kts
What is max speed with NR set at 102%
90kts
What is max landing gear operating and flight speed extended?
150kts
What is min speed allowed under IFR
50 kts
What is max speed for IFR APP
150kts
What is max airspeed for wiper operations
140 kts
What is min speed in autorotation
40kts
Max airspeed with right door open
100kts
What is max airspeed with LH and both doors open
80kts
What is max airspeed to open doors
80kts
What is paved surface speed limits
Max taxi 40kts
Emerg landing speed 60kts
Ground speed limitations on prepared grass surfaces
Max taxi 20 kts
Max emerg landing speed 40 kts
What are the baggage compartment limits
200kg loaded to 600mm high
What are the slope landing limits for the 139
10 degree all round
What are the auto hover limit speeds
75kts IAS and 65 kts GS
What are the hoist weight limits
249 kg above 0 deg and 227 below 0 deg
What is max AUW for winching
6800kg
What is max winch speed fully loaded
150 ft min
What is the pilot winch control limited to
50% of nominal
What is max forward airspeed to winch
80 kts
What wind speed do you need to record all starts
Wind speed above 33 kts
What is max take off PI
110 Pi
What is starter duty cycle for engines
45 Sec on, 1 min off
45 Sec on , 1 min off
45 Sec on, 30 min off
How much unusable fuel do we carry
10 Ltr each tank
What is max running speed for brake application
40 kts
What temp range for pitot tube operation
Turned on less than or equal to 4deg
Turned off 10 deg or more
What is max baggage unit load
300 kg/sq m
What isTDP Range for helipad take off
35-70 ft
What is TDP for short field take off
35-400 ft
What is TDP for helipad backup take off
85-400ft
What is TDP for confined area procedures
100-400ft
What is Vy
80 kts
What is max airspeed with take off power
90kts
What is max speed with NR set at 102%
90kts
What is max landing gear operating and flight speed extended?
150kts
What is min speed allowed under IFR
50 kts
What is max speed for IFR APP
150kts
What is max airspeed for wiper operations
140 kts
What is min speed in autorotation
40kts
Max airspeed with right door open
100kts
What is max airspeed with LH and both doors open
80kts
What is max airspeed to open doors
80kts
What is paved surface speed limits
Max taxi 40kts (>6400 20kts) (>6800 10 kts)
Emerg landing speed 60kts
Ground speed limitations on prepared grass surfaces
Max taxi 20 kts (prohibited >6400)
Max emerg landing speed 40 kts
What are the baggage compartment limits
200kg loaded to 600mm high
What are the slope landing limits for the 139
10 degree all round
What are the auto hover limit speeds
75kts IAS and 65 kts GS
What are the hoist weight limits
249 kg above 0 deg and 227 below 0 deg
What is max AUW for winching
6800kg
What is max winch speed fully loaded
150 ft min
What is the pilot winch control limited to
50% of nominal
What is max forward airspeed to winch
80 kts forward within +/- 10 degrees azimuth, otherwise 35 knots below 7000’
What wind speed do you need to record all starts
Wind speed above 33 kts
What is max take off per
110 Pi
What is starter duty cycle for engines
45 Sec on, 1 min off
45 Sec on , 1 min off
45 Sec on, 30 min off
How much unusable fuel do we carry
10 Ltr each tank
What is max running speed for brake application
40 kts
What temp range for pitot tube operation
Turned on less than or equal to 4deg
Turned off 10 deg or more
What is max baggage unit load
300 kg/sq m
What is the D value?
16.62
What is the overall length and rotor diameter?
16.62 m and 13.8 m
What is the cabin floor max load?
1000 kg
What is the VNE with one AP failed?
VNE - 27 kts
What is the max airspeed for climb with one AP?
100 kts
What is the max ROC for one AP?
1000 FPM
Max operating OAT?
+50 degrees
Max wind speed for rotor start and stop?
60 kts
When engaged if the speed reduces below 41 kts, which modes with not disengage?
ALT, RHT, HOV
What type of engine is installed on the AW139?
PWC PT6C-67C
NG AEO continuous
100.0%
NG AEO 5min T/O
102.4%
NG AEO transient
107.0% 5 sec
NG OEI Continuous
102.4
NG OEI 2.5 min
106.0%
NG OEI transient
107.0% 5 sec
ITT AEO continuous
735
ITT AEO take off
775
ITT AEO transient
847
ITT OEI continuous
775
ITT OEI 2.5 min
835
ITT OEI transient
847
Fuel capacity main tank
1255 (1588lts)
Fuel capacity aux tank
395 (500lts)
When does the low fuel light come on?
92 kgs
The normal operating range for MGB oil pressure?
3.1 - 6.0 bar
When does the MGB OIL TEMP CAS come on?
109 degrees
When does the IGB/TGB OIL TEMP CAS come on?
109 degrees
Normal ENG OIL pressure range
6.3 - 8.9 bar
When does the ENG OIL PRESS CAS come on?
< 4.2 bar
When does the ENG OIL TEMP CAS come on?
< 140 degrees
The normal operating range for HYD pressure
180 - 225 bar
When does the HYD OIL PRESS CAS come on?
< 163 bar
When does the HYD OIL TEMP CAS come on?
> 134 degrees
When can the rotor brake be applied?
- Both engines off max 40% NR (90% emergency)
