Piper ARCHER III - Page 23

Vne/Mne Never Exceed Speed or Mach Number is the
speed limit that may not be exceeded at any
time.
Vno Maximum Structural Cruising Speed is the
speed that should not be exceeded except in
smooth air and then only with caution.
V
S Stalling Speed or the minimum steady flight
speed at which the airplane is con-
trollable.
Vso Stalling Speed or the minimum steady flight
speed at which the airplane is con- trollable
in the landing configuration.
Vx Best Angle-of-Climb Speed is the airspeed
which delivers the greatest gain of altitude in
the shortest possible horizontal distance.
Vy Best Rate-of-Climb Speed is the airspeed
which delivers the greatest gain in altitude in
the shortest possible time.
(b) Meteorological Terminology
ISA 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.
OAT 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.
Vne/Mne Never Exceed Speed or Mach Number is the
speed limit that may not be exceeded at any
time.
Vno Maximum Structural Cruising Speed is the
speed that should not be exceeded except in
smooth air and then only with caution.
V
S Stalling Speed or the minimum steady flight
speed at which the airplane is con-
trollable.
Vso Stalling Speed or the minimum steady flight
speed at which the airplane is con- trollable
in the landing configuration.
Vx Best Angle-of-Climb Speed is the airspeed
which delivers the greatest gain of altitude in
the shortest possible horizontal distance.
Vy Best Rate-of-Climb Speed is the airspeed
which delivers the greatest gain in altitude in
the shortest possible time.
(b) Meteorological Terminology
ISA 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.
OAT 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.
SECTION 1
PA-28-181, ARCHER III GENERAL
SECTION 1
PA-28-181, ARCHER III GENERAL
ISSUED: JULY 12, 1995 REPORT: VB-1611
1-7
ISSUED: JULY 12, 1995 REPORT: VB-1611
1-7