Instrument Flight
Constant Airspeed Climbs and Descents
turn, and 50 ft prior to the end of the 1,000-ft descent.) At the transition point, begin 200 KIAS, 1,000 fpm
rate climb while continuing the 1/2 SRT in the same direction for another 90 degrees of turn. During the
climb, adjust AOB to maintain rate of turn and power and pitch to maintain 200 KIAS, 1,000 fpm climb on
the clock.
At the appropriate lead point of the climb, simultaneously reverse 1/2 SRT for another 180 degrees of turn
and begin the 1,000 fpm descent on the clock. The maneuver is complete at the end of the second climb.
Use the same checkpoints on the clock as used for the timed turn 1/2 SRT and S-1 pattern timed climbs
and descents. Trim throughout the maneuver to keep pressure off the stick.
Power setting: Climb approximately 1,500 pph; descent approximately 700 pph
Pitch: Climb = 2-3 degrees noseup; descent = 1-2 degrees nosedown
Bank angle: Adjust to maintain 1/2 SRT and reverse turn at start of each descent
Airspeed: 200 KIAS
Heading: 90 degrees of change for each climb and descent
NOTE: If you get ahead of the turn schedule,
reduce AOB so to arrive on heading and on time.
Always begin reversal turn with descent on the
clock.
O
SLOW FLIGHT MANEUVER
The slow flight maneuver allows you to practice
N
instrument landing procedures, at altitude, prior to
your first actual instrument approach. Although this
maneuver may appear complex, it is actually just a
M
compilation of individual maneuvers that you have
already performed (Figure 10).
A.
LEVEL FLIGHT
L
B.
LEVEL SPEED CHANGE
Begin the maneuver from level flight at 250 KIAS.
C.
90-DEGREE TURN (30 AOB)
D.
LANDING CONFIGURATION
Decelerate to 200 KIAS by performing a level-
E.
45-DEGREE TURN (20 AOB)
speed change using the speed brakes. When you
K
F.
45-DEGREE TURN (20 AOB)
change the power setting and extend the speed
G.
FINAL APPROACH SPEED
brakes, you’ll have to trim the nose up to maintain
H.
30-DEGREE TURN (10 AOB)
level flight. Retract the speed brakes 5 kts before
I.
30-DEGREE TURN (10 AOB)
J
you reach 200 KIAS and retrim the nose to
J.
ON-SPEED DESCENT
K.
ON-SPEED LEVEL FLIGHT
maintain level flight. You should expect a change
L.
MISSED APPROACH
I
in pitch when you extend or retract the speed
H
M.
SLOW CRUISE
brakes.
N.
LEVEL SPEED CHANGE
O.
LEVEL FLIGHT
G
Next, roll into a 30-degree AOB turn and hold it for
90 degrees of heading change, adjusting pitch and
F
power as needed to maintain altitude and airspeed.
E
Lead the roll-out by about one-third of your bank
angle, readjusting pitch and power to maintain level
D
flight.
After completing the turn, lower the gear, and set
A
B
full flaps/slats. Adjust pitch to maintain level flight
C
throughout the transition. At 155 KIAS, advance
Figure 10: SLOW FLIGHT MANEUVER
power to maintain 150 KIAS and retrim the nose.
Page 32
(4-01) Original
Previous Page
