Piper ARCHER II Pilot Operating Handbook page 28

PA-28-181, ARCHER II
GENERAL
VNE/MNE
VNo
Vs
Vso
VX
Vy
Never Exceed Speed or Mach Number is |
the speed limit that may not be exceeded at
any time.
Maximum Structural Cruising Speed is the |
speed that should not be exceeded except
in smooth air and then only with caution.
Stalling Speed or the minimum steady |
flight speed at which the airplane is con-
trollable.
Stalling Speed or the minimum steady |
flight speed at which the airplane is con-
trollable in the landing configuration.
Best Angle-of-Climb Speed is the airspeed |
which delivers the greatest gain of altitude
in the shortest possible horizontal distance.
Best Rate-of-Climb Speed is the airspeed |
which delivers the greatest gain-in altitude
in the shortest possible time.
(b) Meteorological Terminology
ISA
OAT
ISSUED: JULY 2, 1979
REVISED: FEBRUARY 2, 1990
International Standard Atmosphere in
which: The air is a dry perfect gas; The
temperature at sea level is 15° Celsius (59°
Fahrenheit); The pressure at sea level is
29.92 inches Hg (1013.2 mb); The tempera-
ture gradient from sea level to the altitude
at which the temperature is -56.5°C
(-69.7°F) is -0.00198C (-0.003564°F) per
foot and zero above that altitude.
Outside Air Temperature is the free air
static temperature, obtained either from
inflight temperature indications or ground
meteorological sources, adjusted for
instrument error and compressibility
effects.
REPORT: VB-1120
1-7