The normal probabilities of liftoff and touchdown airspeeds
are shown in Figure 13.
While power is accurately displayed via engine instruments, AOA is an enigma fleetingly glimpsed through airspeed
Flight test results have verified the accuracy of the airspeeds
computed by the technique in the present study when compared to that recorded in the light simulator.
The optimum airspeed
could vary by as much as 9 or 10 knots.
The literature review revealed that higher airspeeds
promote overall a better coverage in the middle and bottom portions of the plant canopy while lower airspeeds
are more appropriate for the top portion of the plant canopy.
The two flocks of Ross's gulls had airspeeds
of 12.2 m/s and 14.6 m/s (mean 13.4 m/s).
Short of pawing through the POH all the time, and appearing unprepared, one answer is to develop your own placard or list of target airspeeds
for various operations.
Color-coding is applied to traditional round airspeed
indicators and those displayed by integrated flight deck equipment like Garmin's G1000.
I compared my AOA and airspeed
before making my approach turn.
The FAA's Airplane Flying Handbook (FAA-H-8083-3A) includes the following discussion of accelerated stalls: "At the same gross weight, airplane configuration, and power setting, a given airplane will consistently stall at the same indicated airspeed
if no acceleration is involved.
The abort or waveoff call alone doesn't answer questions about approach- or waveoff-pattern altitudes, airspeeds
, a spot or a running landing, and the urgency of the problem.
It states, "Airplanes operate at low airspeeds
and at high angles of attack during the takeoff/departure and approach/landing phases of flight.
This controllability problem occurs when two key cross-checked airspeeds
differ by 25 knots.
Then you deployed flaps and began the descent, nailing the desired airspeeds
and following the pattern to the runway.