Maintenance Manual LS4
Issued: May 2011
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
1.7.2 Water Ballast System LS4-b
Waterbag 4F5-35 (approx. 85 Liters <22.45 US gallons > per wing),
optionally 4F5-13 (approx. 70 Liter <18.5 US gallons> per wing) or
waterbag 4F5-81 (50 Liters <13.2 US gallons> per wing).
Valves / loading and dumping port on lower side of wings. Automatic
hook-up during rigging. Drive of valves at root rib via push rods.
If installed: In the vertical tail fin either battery receptacle or ballast tank
allowing to compensate C.G. shift due to wing water ballast or mass of
heavy pilots, maximum capacity 5 Liters <1.32 US gallons). When the tail
fin tank is combined with a battery receptacle, the maximum capacity is 3.5
Liters <0.92 US gal.>
Water ballast system in wings LS4-b
Water ballast System LS4-b in fuselage,
optional fin tank