Description Of Systems; Overview - DG Flugzeugbau LS8 Maintenance Manual

1

Description of systems

1.1 Overview

Wings
LS8 and LS8-a: Wingspan 15 m with removable winglets.
LS8-b and LS8-18: Wingspan variable by exchange of 15m winglets with
18m tips with Winglets.
Aileron Controls
Aileron system activated via pushrods guided in longitudinal motion ball
bearings, connection of system by automatic coupling during rigging.
Dynamic aileron mass balance in wings.
Only LS8: Aileron parted at wing contour brake
LS8-b and LS8-18: Additional ailerons at 18m wingtips.
Elevator Controls
Elevator system activated via pushrods guided in longitudinal motion ball
bearings, automatic coupling of system during rigging. 100% mass
balance in vertical tail fin pushrod.
Rudder Controls
Rudder system activated via steel cables guided in polyamide tubing, no
closed control circuit. mass balance at rudder.
Wheel Brake
Feet operated, activated by bowden cable from rudder pedals.
With TN8019 executed: The wheel brake Bowden cable is connected to the
airbrake drive instead of the rudder pedals.
Air Brakes
Activated via pushrods, guided partly in longitudinal motion ball bearings,
partly in plain bearings. Automatic connection of system during rigging.
Locking mechanism in wings. Upper surface double height air brakes with
spring loaded cover blades. Friction damper in box to prevent oscillations
during extension.
Water Ballast System
LS8:
One double water bag per wing, maximum capacity per wing 75 Liters
<19.8 US gallons, 16.5 Imp. gallons>. Optionally one single water bag ,
maximum capacity per wing 50 Liters <13.2 US gallons, 11 Imp.
gallons>. Double valve or single valve at wing root, one loading and
dumping orifice on under side of wings near root. Automatic
connection during rigging.
In the vertical tail fin either battery receptacle or ballast tank allowing
to compensate C.G. movement due to wing water ballast or mass of
heavy pilots, maximum capacity 5.5 Liters <1.45 US gallons, 1.21 Imp.
gallons>. When the tail fin tank is combined with a battery receptacle,
the maximum capacity is 4.1 Liters <1.08 US gal., 0.9 Imp.gal.>.
(Maximum permissible compensation allowed for in tables)
Issued: February 2011
Copyright DG Flugzeugbau GmbH - any copy or publishing prohibited
Manual valid with the up-to-date cover page only
Maintenance Manual LS8
TN8019 1-1