Table of Contents
Advertisement
Remedy
If, inadvertently you operate the latch out
of sequence, return to normal by the following
steps:
1. Pull the latch to the vertical position.
2. Raise the gear handle to UP position.
3. Return the gear handle to NEUTRAL
Wheels...Stop rotation with
brakes
Power reductions
Once you have attained a speed of 120
mph it is safe to make your first power reductions.
Note
Maximum cylinder head temperature
0
may exceed 232
C. but only for takeoff and
climb. At no time allow cylinder head tempera-
0
tures to exceed 260
C. For all level flight condi-
tions, regardless of altitude or power, keep
0
cylinder head temperatures at or below 232
C.
R-1830-90C ENGINES (WITH 2-STAGE BLOWER)
RPM
LOW BLOWER
MIX.
M.P.
min. max.
min.
max.
2450 - 2550
39"- 42"
Auto-Rich
2350 - 2450
36"- 39"
Auto-Rich
2250 - 2350
32"- 36"
Auto-Rich
2000 - 2250
28"- 32"
Auto-Lean
1700 - 2000
24"- 28"
Auto-Lean
27
Cowl Flaps .......Trail or Closed
Cowl Flaps can have a buffeting effect if
left open. Trail position is normal or Closed if at
higher altitudes or operating in cold conditions.
Mixtures ..........Auto-Lean
Fuel Selectors.......to Desired Tanks
Adjust power as required to suit alti-
tude and blower settings.
You are now ready to trim your airplane
for level flight.
CRUISE POWER SETTINGS
At cruising altitudes reduce power to
cruise conditions. For Grade91 fuel, these setting
are:
HIGH BLOWER
MIX.
MAX CYL. TEMP.
M.P.
min. max.
0
34"- 36"
Auto-Rich
232
C
32"- 34"
Auto-Rich
232
0
C
30"- 32"
Auto-Rich
232
0
C
27"- 30"
Auto-Rich
232
0
C
0
24"- 27"
Auto-Rich
232
C
SPERRY GYRO PILOT
When you are flying long distances you
can keep your airplane in straight and level flight
by means of the Speery Gyro Pilot. It detects
flight deviations the instant they occur and cor-
rects them immediately and with precision. Use
this pilot only in ordinary weather conditions and
never in extremely turbulent air.
To set the Gyro-pilot in operation, trim
your airplane then:
1. Align the adjustable index card (2) with the
gyro card (3) in the directional gyro unit.
2. Check Suction (13). It should read between
3.75" and 4.25" Hg.
3. Turn the shut-off valve control on the
hydraulic panel to the ON position.
4. Turn the Power control (1) ON
to ON or turn the automatic pilot control on
the pedestal base to ON.
5. Press the Heading Hold Button (5)
5.
6.
2.
3.
11.
4.
1. Power
2. Index Card
3. Heading Gyro
4. Index Adjuster
5. Heading Hold (push)
6. Pitch Hold (push)
6. Bank indicator
7. Pitch Reference
8. Pitch Reference Adjuster
9. Pitch Indicator Bar
10. Cage Knob
11. Gyro Cage (plate)
12. Attitude Wings Adjuster
13. Suction Gauge
The airplane will be held in this flight po-
sition unless adjusted, using the Sperry controls.
If you wish to enter a climb under Gyro-
pilot or if you need to adjust the pitch angle of
the nose, use the knob marked "ELEV" (8) which
will adjust the pitch reference (7) . The orange
horizon bar (9) will move to maintain its position
in the center of the pitch reference bar and the
aircraft's nose will rise (or fall). If you wish to
maintain the pitch of the aircraft, press the Pitch
Hold knob (6) You can still ajust the pitch using
the ELEV (pitch reference) knob (8) If you wish
to alter your heading while under automatic pilot
control, turn the knob marked "RUD" to adjust
the index (upper) card in the gyro. Now TURN
OFF the Heading Hold (5) The aircraft will turn
to the new heading and the index and gyro cards
will align again, to show your new heading.
NOTE: The servo controls (speed valves)
are INOP in this simulation.
8.
13.
7.
9.
10.
1.
12.
Note
The Sperry Gyro Pilot is NOT
the same as the more modern
autopilots you will be used to in flight simulators.
It was designed in the late 1930's as a device to
maintain an aircraft's flight attitude -that is level
flight and direction, once these are set by trim-
ming.
It should be remembered that this unit is
not designed as a navigation aid and was never
meant to be one. For that, you need more modern
equipment or do as the original pilots did - rely on
dead-reckoning, sextant and VFR.
28
Advertisement
Table of Contents
