Eiri KY PIK-20 E - Flying in Icing and Low Temperature Conditions; Flying at High Altitudes

PIK-20 E Flight manual
5.26 Flying in icing and low temperature conditions
The sailplane and engine have no deicing devices. Flying in icing con 
ditions is prohibited.
Note: The water ballast freezes rather quickly at low temperatures.
Frozen ballast will cause serious damages to the wing. If the ambient
temperature is below +4°C (40°F), the water ballast must be drained.
A water temperature gauge is recommended. When flying at tempera 
tures below 0°C antiicing fluid must be used in the fuel, see 5.3.
5.27 Flying at high altitudes
If the flight is made above 3500 m (11000 ft) altitude, oxygen equipment
must be used.
When using automobile gasoline the use of the electric fuel pump is
recommended at high altitudes because of the "wapor lock" possibility.
EIRI KY
J
Kisällinkatu 8
SF-15170 Lahti 17
page I-36