DG Flugzeugbau LS4 - 8 Permanent installation of fixed ballast and equipment; 8.1 Fixed ballast under instrument panel

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
8-1
8 Permanent installation of fixed ballast and equipment
Caution: After permanent installation of fixed ballast, empty mass C.G.
position and loading limits should be redetermined by weighing. See Chapter 2.
8.1 Fixed ballast under instrument panel
If empty mass C.G. position is too far back to allow 70 kg <154 lbs> as
Minimum Cockpit Load, permanent installation of ballast under seat in
front of control stick is possible.
Lever arm 1050 mm <41.3 in.> in front of datum).
Mass should be fixed in flight direction, using large washers and self-
locking nuts such that vibration will not allow mass to rotate.
One mass of 2.45 kg <5.4 lbs> reduces the min. cockpit load by about 3 kg
<6.6 lbs.>.