Rotorcraft Flying Handbook, FAA-H-8083-21

50 60 70 80
40 TORQUE 90
30
100
20 PERCENT
110
10
0
120
Primary Power
Supporting Pitch
and Bank
Primary Pitch
Supporting
Power
Supporting Bank
Primary Bank
Supporting Pitch
Figure 12-15. Flight instrument indications in straight-and-level flight at normal cruise speed.
ENTRY
To enter a constant airspeed climb from cruise airspeed,
when the climb speed is lower than cruise speed, simultaneously
increase power to the climb power setting
and adjust pitch attitude to the approximate climb attitude.
The increase in power causes the helicopter to
start climbing and only very slight back cyclic pressure
is needed to complete the change from level to climb
attitude. The attitude indicator should be used to
accomplish the pitch change. If the transition from
level flight to a climb is smooth, the vertical speed indicator
shows an immediate upward trend and then stops
at a rate appropriate to the stabilized airspeed and attitude.
Primary and supporting instruments for climb
entry are illustrated in figure 12-17.
When the helicopter stabilizes on a constant airspeed
and attitude, the airspeed indicator becomes primary
50 60 70 80
40 TORQUE 90
30
100
20 PERCENT
110
10
0
120
Primary Power as Airspeed
Approaches Desired Value
Supporting Pitch
and Bank
Primary Pitch
Primary
Power
Initially
Supporting Bank
Primary Bank
Supporting Pitch
Figure 12-16. Flight instrument indications in straight-and-level flight with airspeed decreasing.
12-12