The Fuel Management; The Other 5 Page (Oth 5) - Honeywell KLN 900s Pilot's Manual

5.10 THE FUEL MANAGEMENT PAGES
Certain models of fuel management computers manu-
factured by Shadin Company, ARNAV System, Inc,
and Gebe Instruments may be interfaced with the KLN
900. The primary benefit of having the KLN 900 inter-
faced with a "real time" fuel management computer is
that the system can continuously compute the amount
of fuel required to reach the destination and the
amount of fuel that will be on board upon reaching the
destination. The concept is the following. The fuel
management computer continuously sends the rate of
fuel flow and the amount of fuel remaining to the KLN
900. The KLN 900 continuously calculates the air-
craft's distance, groundspeed, and estimated time
enroute (ETE) to the destination waypoint. The fuel
required to reach the destination waypoint is the ETE
multiplied by the current rate of fuel flow. The amount
of fuel that will be remaining at the destination is the
amount of fuel presently remaining minus the fuel
required to reach the destination.
CAUTION: The KLN 900 fuel calculations are
based on the present rate of fuel flow, the present
groundspeed, the present distance to destination
along the programmed route, and the amount of
fuel presently remaining. Before take-off, the fuel
flow computer must be properly initialized with the
amount of fuel on board the aircraft. Since many
factors influence the required amount of fuel to
reach the destination, it is the pilot's responsibility
to view the fuel management pages often to check
for any significant changes. Some factors affect-
ing the amount of fuel required are power changes,
altitude changes, headwind/tailwind component
changes, fuel/air mixture adjustments, and routing
changes.
The OTH 5, OTH 6, OTH 7, AND OTH 8 pages are
used to display fuel management information for
KLN 900's interfaced with compatible fuel management
computers. If there is no fuel management computer
interface, these fuel management pages are not dis-
played.

5.10.1 The Other 5 Page (OTH 5)

The OTH 5 page displays the following information
(figure 5-123):
• The destination waypoint. An arrow is displayed to
the left of the identifier if the waypoint is the active
waypoint.
• The fuel units as received from the fuel manage-
ment computer.
GAL
IMP
gallons
imperial gallons
KLFT
FOB
REQD
L FOB
RES:
EXTRA
OTH 5
5-41
GAL|
126|
90|
36|
00030|
6|
Figure 5-123
Rev 2