Beechcraft C-12C Operator And Technical Reference Manual page 848

TM 1-1510-218-10
8-41. OBSTACLE CLEARANCE APPROACH AND
MINIMUM RUN LANDING.
When landing over obstacles that require a
steeper than normal approach path or when greater
precision is required due to restricted runway lengths,
a stabilized approach/precision landing technique
should be employed. Prior to intercepting the descent
path, complete the landing check and stabilize
airspeed at V . After intercepting the desired
ref
approach angle, maintain a constant descent by
controlling the descent with power and airspeed with
elevator. Transition smoothly from approach to
landing attitude. Touchdown should be made on the
main gear with the nose slightly high, with power as
required to control rate of descent for a smooth
touchdown. Immediately after touchdown, allow the
nose wheel to make ground contact and, if necessary,
apply full reverse power and braking, as required. If
possible, remove reverse thrust as the aircraft slows to
40 KIAS to minimize propeller blade erosion.
8-42. LANDING.
Performance data
computations assume that the runway is paved, level,
and dry. Additional runway must be allowed when
these conditions are not met. Refer to Chapter 7 for
landing data. Do not consider headwind during
landing computations; however, if landing must be
downwind, include the tailwind in landing distance
computations. Plan the final approach to arrive at
50 feet over the landing area at V
gust speed. Perform the following procedures as the
aircraft nears the runway.
1. AP & YD – Disengaged.
2. GEAR DOWN lights – Check.
3. PROP levers – HIGH RPM.
a. Normal Landing. As the aircraft nears the
runway, flare slightly to break the rate of descent and
reduce power smoothly to IDLE as the nose of the
aircraft is rotated to landing attitude.
tendency to ride the ground effect cushion while
waiting for the aircraft to slow down to a soft landing.
As the aircraft touches down, gently lower the nose-
wheel to the runway and use reversing, brakes, or
beta range, as required. Normally, reversing will not
be used unless required, but if it is used, remove
reverse power as the aircraft slows to 40 KIAS. This
will help minimize propeller blade erosion.
b. Crosswind Landing. When landing in very
strong crosswinds, flaps extension should be limited to
obtain a faster approach and landing speed. Use the
8-22
charts for landing
plus one-half wind
ref
Avoid the
"crab-into-the-wind" method to correct for drift during
final approach. The "crab" is changed to a slip (aileron
into wind and top rudder) to correct for drift during flare
and touchdown. After landing, position ailerons as
required to correct for crosswind effect.
c. Soft Field Landing. When landing on a soft
or unprepared surface such as mud, tall grass, or
snow, plan a normal power approach with flaps fully
extended. Decelerate to the slowest possible airspeed
just prior to touchdown, using power to control the final
rate of descent to as slow as possible. Do not stall
prior to touchdown as the nose attitude and rate of
descent will become unacceptable.
apply full back (aft) elevator and reduce power slowly.
Do not use brakes unless absolutely necessary. Every
precaution must be taken to prevent the nose wheel
from digging into the surface.
d. Touch and Go Landings. The PNF should
select a point on the runway where all pre-takeoff
procedures will have been completed prior to the
pilot's initial application of power.
point, prime consideration shall be given to the
required accelerate-stop distance pre-computed for
the runway in use. The nose wheel should be on the
runway and rolling straight before the touch-and-go
procedures are initiated. After the PF applies power to
within 5% of target, the PNF's actions are the same as
during a normal takeoff. If training authorizing touch-
and-go landings is approved, use the following
procedure.
1. PROP levers – HIGH RPM.
2. FLAPS – As required.
3. Trim – Set.
4. Power stabilized – Check 27% minimum.
5. Takeoff power – Set.
8-43. GO AROUND.
When a go-around is started before the landing
check, use power as required to climb to or maintain
the desired altitude and airspeed. If the go-around is
started after the landing check, apply maximum
allowable power and simultaneously increase pitch
attitude to stop the descent.
APPROACH, adjusting pitch attitude simultaneously to
avoid an altitude loss. Retract the landing gear after
ensuring that the aircraft will not touch the ground.
+10, retracting flaps fully after
Accelerate to V
2
attaining 105 KIAS.
greatly enhanced by ensuring the CONDITION levers
On touchdown,
In selecting this
Retract the flaps to
Safety and recoverability are