Page 17
Section - 2
LIMITATIONS
FAA Approved
Original Issue: Feb 28, 2006
Hawker 850XP Pro Line 21 Airplane Flight Manual
Maximum Fuel Temperature
The maximum permissible fuel temperature is 57
°
C.
Minimum Fuel Temperature
To avoid the possibility of fuel freezing or exceeding engine limitations, the following ambient
air and indicated fuel temperature limitations should be observed:
Fuel Quantity
The usable fuel capacity of each tank when gravity filled is as follows:
Credit shall not be taken for any fuel remaining in the tanks when the fuel quantity indicators
read zero in level flight.
After pressure refueling, the contents of each wing tank will be 2.4 US Gallons (9.1 Liters) less
and the contents of the ventral tank will be 3.6 US Gallons (13.6 Liters) less.
The contents of the ventral tank are reduced by 4.8 US Gallons (18.2 Liters) for airplanes which
have an external toilet servicing facility.
FUEL
MINIMUM FUEL
OR AMBIENT AIR
TEMP AT TAKEOFF
MINIMUM
FUEL TEMP
IN FLIGHT
FUEL
FREEZING
TEMP
DEF STAN 91-91 (D.E.R.D 2494)
DEF STAN 91-87 (D.E.R.D 2453)
ASTM D1655/JET A-1
MIL-T-83133/JP8
CAN/CGSB 3.23/JET A-1
-42
°
C
-45
°
C
-47
°
C
ASTM D1655/JET A
CAN/CGSB 3.23/JET A
GB 6537-94/No. 3 JET FUEL
-35
°
C
-38
°
C
-40
°
C
DEF-STAN 91-88 (D.E.R.D 2454)
MIL-T-5624/JP4
MIL-T-5624/JP5
-53
°
C
-35
°
C
-54
°
C
-38
°
C
-58
°
C
-40
°
C
ASTM D1655/JET B
CAN/CGSB 3.22/JET B
-45
°
C
-48
°
C
-50
°
C
GOST 10277-86 TS-1
GOST 10277-86 T-1
GOST 10277-86 T-2
-54
°
C
-54
°
C
-60
°
C
GOST 10277-86 RT
-50
°
C
-53
°
C
-55
°
C
LOCATION
U.S. GALLONS
EQUIVALENT
LITERS
Wing tank (either side)
634
2400
Ventral tank
233
882
For Training Purposes Only