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BEECHCRAFT Sundowner
180
Section I
C23 (M-1 285 and After)
General
DESCRIPTIVE
DATA
NOTE
M-1285
thru
M-2178
are
14-volt
systems. The
battery switch
is placarded
BATTERY & ALT
and
the
alternator
switch
is placarded
ALT
(or
ALT
FlELD).
28-volt
systems,
M-2179
and
after,
are
placarded
BATTERY for the battery
switch
and ALT
FIELD
for the alternator switch.
All
items
throughout
this
handbook
that refer
to battery switch
refer
to
either
BATTERY &
ALT switch
or
BATTERY switch
depending
upon
configuration.
ENGINE
Airplane
is equipped
with
an Avco
Lycoming
O-360-A2G,
O-360-A4G,
O-360-A4J
or
O-360-A4K engine
rated
at
1
80
horsepower.
Take-off
and
maximum
continuous
operation
(sea
level):
2700
rpm,
full throttle.
Engine
cooling
has
been demonstrated
for a
100° F
day.
PROPELLER
Sensenich
M76EMMS-O-60
or
76EM8S5-0-60
fixed
pitch,
two blade
propeller.
Static
rpm
at maximum
per-
missible
throttle
settings:
Not
over 2350 rpm
and
not
under
2250
rpm. No additional
tolerance
permitted.
FUEL
Aviation Gasoline
91/96
(blue)
minimum
grade
or 100
(green)
or
100LL
(blue).
M-1285
thru M-1516:
*59.8-gallon
system
(29.9
gallons
each tank)
.......
*58
gallons
usable
Each tank has provisions
for
partial
filling to:
20 gallons
each tank
.........
38.2
gallons
usable
15 gallons
each
tank
.........
28.2
gallons
usable
Revised:
April 1979
1-9
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