Beechcraft C-12C Operator And Technical Reference Manual page 847

2. CABIN SIGNS switch – As required.
3. POWER levers – IDLE.
4. PROP levers – HIGH RPM.
5. GEAR – UP.
6. FLAPS – UP.
7. Airspeed – V
mo
8. ICE & RAIN switches – As required.
9. RECOG lights – As required.
b. DESCENT
Configuration). If required to descend at a low
airspeed (e.g., to conserve airspace or in turbulence),
approach flaps and landing gear may be extended to
increase the rate and angle of descent while
maintaining the slower airspeed.
maximum rate of descent in landing configuration,
perform the following.
1. Cabin pressurization – Set. Adjust CABIN
CONTROLLER dial as required and
adjust RATE control knob so that cabin
rate of descent equals one-third aircraft
rate of descent.
2. CABIN SIGNS switch – As required.
3. POWER levers – IDLE.
4. PROP levers – HIGH RPM.
5. FLAPS – APPROACH.
6. GEAR – DN.
7. Airspeed – 181 KIAS maximum.
8. ICE & RAIN switches – As required.
9. RECOG lights – As required.
8-38. DESCENT - ARRIVAL.
Perform the following checks prior to the descent
for landing.
1. Cabin pressurization – Set. Adjust CABIN
CONTROLLER dial as required.
2. CABIN SIGNS switch – As required.
3. ICE & RAIN switches – As required.
4. WSHLD ANTI-ICE – As required.
maximum.
– Max Rate (Landing
To perform the
Set windshield anti-ice to normal or high as
required well before descent into icing
conditions or into warm moist air to aid in
defogging. Turn off windshield anti-ice
when descent is completed to lower
altitudes and when heating is no longer
required. This will preclude possible wind-
screen distortions.
5. RECOG lights – ON.
6. Radio altimeter – As required.
7. Altimeters – Set to current altimeter
setting.
O
8. TCAS – Set as required.
9. Arrival briefing – Complete.
Paragraph 8-68 for arrival briefing outline.
8-39. APPROACH.
1. HSI NAV SOURCE – As required.
a. Ensure the correct navigational source
for the approach has been selected.
2. TCAS – Set as required.
O
8-40. BEFORE LANDING.
1. CABIN SIGNS switch – BOTH.
2. PROP SYNC switch – OFF.
3. AUTOFEATHER switch – ARM.
4. BRAKE DEICE – As required.
5. PROP levers – As required.
During approach, propellers should be set
at least to 1900 RPM to prevent glideslope
interference (ILS approach), provide better
power response during approach, and
minimize attitude change when advancing
propeller levers for landing.
6. FLAPS (below 199 KIAS) – APPROACH.
7. GEAR (below 181 KIAS) – DN.
8. LANDING/TAXI lights – As required.
9. CONDITION levers – HIGH IDLE.
10. TCAS – Set as required.
O
TM 1-1510-218-10
NOTE
Refer to
NOTE
8-21