BEECHCRAFT
Debonair
C33
Bonami:a
E33
and
f33
SectionV
Performance
Calculations for flight time, block speed and fuel
\__
requirement:
Cruise Climb:
Enter the graph for TIME, FUELAND DISTANCETO CLIMB
at 15°C to
5650
ft
and to
3050
lbs. Ellter at -5°C
to
11,500
ft and to
3050
lbs. Read:
Time to
Climb = (22 -
9)
=
13
min
Fuel Used to Climb =
(6.1
- 2.6) =
3.5
gal
Distance Traveled = (42 - 17) = 25
NM
The cruise power setting is assumed
tobe
at
2450
rpm.
Since cruise at
11,500
feet requires
full
throttle, the
manifold
pressure and fuel
flow
should be read from either
the cruise power setting table
for
75
percent
or
65
per-
cent
maximum· continuous power.
The temperatures for cruise are presented for
a standard
day
(ISA);
20°C
(36°F)
above
a stan\'.lard
day
(ISA
+
20°C);
and
20°C
(36°F)
below
a
standard
day
(ISA
-
20°C).
These
should be used for
flight
planning. The IOAT values are
true temperature vatues
which
have been adjusted for the
c"ompressibility effects. IOAT should be used for setting
cruise power
while
enroute.
Enter the graph for
ISA conversion at
11,500
feet and the
temperature for
1:he
route segment:
DEN-PUB
OAT
-5°C
ISA Condition
=
ISA+
3°C
PUB-TBE OAT
=
0°C
ISA Condition
ISA+
8°C
TBE-DHT OAT
= 9°C
ISA Condition
ISA+
17°C
DHT-AMA
OAT =
10°c
ISA Condition
lSA + 18°C
August
1982
5-6
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