BendixKing KLN 900 - Pilots Guide - Manual (Page 109)

5-2
5.1.1 The Trip Planning 0 Page (TRI 0)
If desired, you may enter the aircraft’s true airspeed
(TAS) and the winds aloft on the TRI 0 page so that this
information is utilized on the other Trip Planning pages.
The KLN 900 uses the TAS and winds entered on the
TRI 0 page to calculate your estimated groundspeed for
specific trip planning routes you enter on the other Trip
Planning pages.
To enter data on the TRI 0 page:
1. Select the TRI 0 page on the left side (figure 5-1).
2. Press the left C to turn on the left cursor function.
3. Enter the aircraft’s true airspeed by using the left
outer knob to move the cursor to the desired location
and the left inner knob to select each individual digit
(figure 5-2).
4. Rotate the left outer knob clockwise to position the
cursor over the first two digits of the wind direction
(figure 5-3).
5. Turn the left inner knob to select the first two digits of
the wind direction (figure 5-4).
6. Rotate the left outer knob one step clockwise to posi-
tion the cursor over the last digit of the wind direc-
tion, and then use the left inner knob to complete the
winds direction entry.
7. Enter the wind speed by using the left outer knob to
move the cursor and the left inner knob to select
each individual digit (figure 5-5).
8. Press the left C to turn off the left cursor function.
Let’s say you enter a TAS of 200 knots and winds of
180 degrees at 25 knots on the TRI 0 page. If you
entered two waypoints on the TRI 3 page (trip planning
between two waypoints) and the bearing from the first
waypoint you entered to the second was 180 degrees,
then the TRI 3 page would contain a groundspeed of
about 175 knots. The reason we say about 175 knots
is that the direction of the winds you enter are relative to
true North and the bearing displayed is relative to mag-
netic North. Remember that winds information you get
from a Flight Service Station or from an ATC facility is
always provided relative to true North. On the TRI 5
and TRI 6 pages (trip planning for a flight plan), the
winds are applied to each individual leg of the flight
plan.
Rev 2
Figure 5-3 Figure 5-4
TRIP PLAN |
ESTIMATES |
|
TAS: 200kt|
WIND:
21 0^%|
018kt|
CRSR
TRIP PLAN |
ESTIMATES |
|
TAS: 200kt|
WIND:
18 0^%|
018kt|
CRSR
Figure 5-5
TRIP PLAN |
ESTIMATES |
|
TAS: 500kt|
WIND: 180^%|
02
5 kt|
CRSR
Figure 5-1 Figure 5-2
TRIP PLAN |
ESTIMATES |
|
TAS: 150kt|
WIND: 210^%|
018kt|
TRI 0 TRIP PLAN |
ESTIMATES |
|
TAS: 20
0 kt|
WIND: 210^%|
018kt|
CRSR