
Sling LSA
Section 1
Pilot Operating Handbook
General Information
Document Number: DC-POH-002-X-A-6
Page | 1-11
Revision: 3.0
Date: 2021/04/23
1.5.2
Speed and Performance Terminology
Acronym Description
IAS
Indicated Airspeed.
KCAS
Calibrated Airspeed – the indicated airspeed corrected for position and
instrument error, expressed in knots.
KIAS
Indicated Airspeed – the speed shown on the airspeed indicator,
expressed in knots.
KTAS
True Airspeed – the airspeed of the aircraft relative to the undisturbed
air through which is passes.
TAS
True Airspeed.
V
A
Manoeuvring speed.
V
BG
Best Glide Speed – the speed
(at MAUW)
which results in the greatest
gliding distance for loss in unit altitude.
V
FE
Maximum Flap Extended Speed – the highest speed permissible with
wing flaps deployed.
V
H
Maximum Speed – the maximum speed in level flight at maximum
continuous power.
V
LOF
Lift-off Speed – the speed at which the aircraft generally lifts off from
the ground during take-off.
V
NE
Never Exceed Speed – the speed that may not be exceeded at any time.
V
NO
Maximum Structural Cruising Speed – the speed that should not be
exceeded, except in smooth air, and then only with caution.
V
REF
Reference Speed – the indicated airspeed, at 15 m (50 ft) above
threshold, which is not less than 1.3V
so
.
V
ROT
Rotation Speed – The speed at which the aircraft should be rotated
about the pitch axis during take-off (i.e., the speed at which the nose
wheel is lifted of the ground).
V
S
Stall Speed – the speed at which the aircraft stalls, at
MAUW
, engine
idling, flaps fully retracted.
V
SO
Stall Speed – the speed at which the aircraft stalls in the landing
configuration, at
MAUW
, engine idling, flaps fully down.
V
X
Best Angle of Climb Speed – the speed (at MAUW, flaps fully retracted)
which results in the greatest altitude gain over a given horizontal
distance (i.e., highest climb angle).
V
Y
Best Rate of Climb Speed – the speed (at MAUW, flaps fully retracted)
which results in the greatest altitude gain over a given time period.