DG Flugzeugbau GmbH
Flight manual DG-500M
Apply the controls in short periods.
It is not allowed to carry waterballast.
Caution:
1. At temperatures below -20°C (-4°F) there is the risk of cracking the gelcoat.
2. Attention must be paid to the fact that at higher altitudes the true airspeed is
grater than the indicated airspeed.
The max. speed VNE is reduced. See the following table:
Altitude in
Metres 0-2000 3000 4000 5000 6000
VNE IAS km/h 270 256 243 230 218
Altitude in
ft. 0-6600 10000 13000 16000 20000
VNE IAS kts. 146 138 131 124 117
3. Dump the water ballast before you reach freezing altitude or descend to lower
altitudes.
4. Do not fly below 0°C (32°F) when your glider is wet (e.g. after rain).
4.5.10 Flight in rain and thunderstorms
With light rain the stall speed and the sink rate increases slightly and the
approach speed has to be increased.
Warning: Flights and especially winch launches in the vicinity of
thunder storms should be avoided. Due to lightning discharge, carbon
fibre structures may be destroyed.
With the engine running
In normal rain, the rate of climb will be reduced by 1/3. The cross
country cruising speed will also be reduced by approx. 10 km/h (5 kts).
Take off in rain should only be done with a long enough airfield and
attention given to safety. A take off should not be attempted in heavy
rain. Rain increases the wear on the leading edge of the propeller so that
any flight in rain should be kept to the absolute minimum.
4.5.11 Cloud flying
(only without waterballast and with the engine retracted)
Take care to fly smoothly and coordinated. It is prohibited to use a spin
as a method for loosing altitude in the clouds. In case of emergency, pull
out the dive brakes fully before exceeding a speed of 200 km/h and dive
with max. 200 km/h (108 kts) to leave the cloud.
Warning: Flying in or near thunderstorm-clouds is prohibited.
Issued: May 2008 TN843/28 App. 4.25
To Next Page
Loading...