DG Flugzeugbau GmbH
Flight manual DG-500M
2.2 Airspeed
Airspeed limitations and their operational significance are shown below:
Speed (IAS) Remarks
km/h(kts)
VNE Never exceed 270
speed (146)
flaps 0° up to
-10°
Do not exceed this speed in any
operation and do not use more
than 1/3 of control deflection.
with the 197 Do not exceed this speed
engine extended (106) with the engine extended (engine idling)
VRA Rough air speed 197
(106)
Do not exceed this speed except
in smooth air and then only with
caution Rough air is in lee-wave
rotor, thunderclouds etc.
VA Manoeuvring 197 Do not make full or abrupt
speed (106) control movement above this
speed, because under certain
condition the sailplane may be
overstressed by full control
movement.
VFE Maximum flap Do not exceed these speeds
extended speed with the given flap setting
L = + 15° 150
( 81)
+10°, +5° 197
(106)
VW Maximum
winch-
140
launching speed ( 76)
Do not exceed this speed during
winch- or auto-tow-launching
VT Maximum aero- 197 Do not exceed this speed
towing speed (106) during aerotowing
VLO Maximum
landing
197
gear operating (106)
Do not extend or retract
the landing gear above this speed
speed
VPO Max. speed to 110 Do not extend or retract
extend and re- ( 59) the powerplant above this
tract the power- speed
plant
Warning: At higher altitudes the true airspeed is higher than the indicated
airspeed, so VNE is reduced with altitude see sect. 4.5.9.
Issued: April 1997 2.3
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