Honeywell KLN 900s Pilot's Manual page 149

L
KG
LB
• The fuel presently on board (FOB). In most installa-
tions this is defined by using the fuel flow computer's
control unit. However, if the KLN 900 is interfaced
with a compatible Shadin fuel flow computer, it is
possible to define the fuel on board by using the KLN
900. In these installations it is not required to have
the fuel flow computer's control head installed in the
aircraft. To change the present fuel on board (FOB)
use the following procedure:
1. Turn to the OTH 5 page.
2. If it is possible to enter the present fuel on board
by using the KLN 900 there will be a colon (:) follow-
ing FOB on the display. If the colon exists press the
left C (figure 5-124). If the colon does not exist it
is not possible to change the fuel on board through
the KLN 900 (figure 5-123).
NOTE: ORS 04 and later versions of the KLN 900
allow you to initialize Fuel on Board to the full fuel
quantity. To do so, simply activate and move the left
cursor over the "FOB" abbreviation on the OTH 5
page, then when the word "FULL?" is displayed (fig-
ure 5-125A), press the ENT button. If the full fuel
quantity has been properly configured by your
installer, the Fuel on Board (FOB) quantity will auto-
matically be set to the full fuel amount. Now, you no
longer have to memorize the full fuel quantity! You
will also notice that the FUEL USED amounts which
appear on the OTH 8 page are reset to zero.
3. Enter the current fuel on board (FOB) using the
left inner knob (figure 5-125B). Make sure the
amount entered is consistent with the units used by
the fuel flow computer.
Turn the left C off.
4.
• The fuel required to reach the destination waypoint
at the current rate of fuel flow and the present
groundspeed (REQD).
• The landing fuel on board (L FOB) is the fuel
presently on board minus the fuel required to reach
the destination.
• The desired fuel reserve (RES). You may enter here
the amount of reserve fuel you wish to have upon
landing. The fuel must be entered in the same units
as displayed on the first line. To enter the reserve,
press the left C, rotate the left outer knob to move
the cursor over each of the desired reserve digits,
and use the left inner knob to select each digit.
Press the left C when finished to turn off the left
cursor function.
liters
Kilograms
pounds
FOB:
REQD
L FOB
RES:
EXTRA
OTH 5
FULL?
REQD
L FOB
RES:
EXTRA
FOB:
REQD
L FOB
RES:
EXTRA
OTH 5
5-42
KLFT GAL|
126|
90|
36|
00030|
6|
Figure 5-124
KLFT GAL|
97|
90|
46|
00030|
6|
CRSR
Figure 5-125A
KLFT GAL|
97|
90|
46|
00030|
6|
Figure 5-125B
Rev 2