23
This ATC crossing restriction will require
scent rate of 720 feet
per minute
A positive value for RQ/DN indicat
nt. A negative value
indicates a climb to the crossing al
OP
(TOP DSCN)
This function determines when to begi
t to arrive at the
destination at a des
tude give
undspeed, indicated
altitude, desired altitude and rate of
In this example, our
d altitude is 11,500 feet. We desire to be at a
ttern altitude
for
G S
Key in
140
and press
E
y will prompt for
I A L T
;
ill prompt for
RATE
The descen
begin 39 miles from our destination.
SPECIFIC RANGE
fic range is a planning
determine the most
r
prompt for
F U E L
a de
es a desce
titude.
T
OF DESCENT
n a descen
n aircraft gro
descent.
ired alti
indicate
pa
of 1,500 feet descending at 600 feet per minute with a groundspeed
of 140.
Select
TOP DSCN
from the main menu
ress
ENTER
and the display will prompt
P
NTER
Displa
Key in
11,500
and press
ENTER
Display will prompt for
D A L T
Key in
1500
and press
ENTER
Display w
Key in
600
ress
ENTER
and p
The display will read:
t should
(SPCRANGE)
Speci
function used to
desirable altitude for long range flight. Range is calculated in miles
given the total fuel, groundspeed and fuel burn. In this example, we
will compute aircraft range at 12,000 feet with 140 gallons of fuel. Ou
fuel burn will be 24 gallons per hour with a groundspeed of 150.
SPCRANGE
from main menu
Select
Press
ENTER
and the display will
Key in
140
and press
ENTER
The display will prompt for
G S
Key in
150
and press
ENTER
The display will prompt for
F P H
Key in
24
and press
ENTER
The display will read:
P ALT
R F
:
38.9
600.
11500.
140.
1500.
RATE
G S
IALT
(FLASHING) T-DCN
DALT
