Tail Tank; General; Normal Transfer - BOMBARDIER Challenger 601-3A CL-600-2B16 Pilot Training Manual

TAIL TANK

GENERAL

An additional fuel tank, which will increase
the fuel load by some 187.7 U.S. gallons (1,250
pounds), can be fitted in the tail.
A powered fuel transfer and a backup secondary
transfer system will automatically transfer fuel
from the tail tank to the auxiliary tank.
Pressure refueling and defueling is possible
through the single-point refueling and defu-
eling panel.
The tail tank cannot be refueled unless the
auxiliary tank is full.
The tail tank is also equipped with a fuel dump
system, as well as a quantity indicator (Figure
5-16) in the cockpit.
The tail tank is located aft of the vertical sta-
bilizer rear spar. It includes two transfer pumps
(DC-powered), No. 1 and No. 2 tail tank
empty/level switches, fuel quantity transmit-
ter, dump valve, and tail tank fuel level switch.
It also has a vent system connected to the rear
air duct and exit flush at the bottom of the
fuselage via a flame arrester.
L. MAIN
AUX
TOTAL
Figure 5-16. Tail Tank Quantity Panel
CL-600-2B16 PILOT TRAINING MANUAL

NORMAL TRANSFER

With the ARMED—OFF switch on the tail tank
fuel transfer panel (Figure 5-17) set to ARMED,
the fuel transfers automatically to the auxiliary
tank at the rate of approximately 25 pounds
per minute. When only unusable fuel (approx-
imately 1.3 U.S. gallons) is left, the shutoff
valve closes and the fuel transfer pump stops.
If the ARMED—OFF switch is set to OFF
while there is still usable fuel in the tail
tank, the NOT ARMED light illuminates. If
fuel in the auxiliary tank reaches the level
of the No. 2 auxiliary tank level switch, the
NOT ARMED light flashes. Placing the
ARMED—OFF switch to the ARMED po-
sition starts the normal transfer, and the
NOT ARMED light goes out. If the NOT
ARMED light remains on, jettison fuel.
In the event of a normal fuel transfer failure,
the SEC TRANS light comes on, shutting
down the primary and starting the secondary
transfer system. The SEC TRANS light indi-
cates that secondary transfer is taking place at
approximately 25 pounds per minute. Monitor
fuel quantity during secondary transfer. If ad-
equate transfer cannot be confirmed with a
maximum of ten minutes, jettison fuel.
R. MAIN
TAIL
FUEL
QUANTITY
LB
Figure 5-17. Tail Tank Fuel Transfer Panel
FOR TRAINING PURPOSES ONLY
FlightSafety Canada
T/TANK FUEL TRANS
NOT
DUMP
ARMED
SW
SEC
ARMED
TRANS
ARMED
DUMP
SELECT
DUMP
OPEN
OFF
Lt é e
Lt d .
CL 601-3A 5-17