Glaser-Dirks DG-800 A, Flight Manual

Page: 107 / 110

Flight manual DG-800
Issued: July 1997 9.3
9.3
Winglets at the 18m wingtips
Section 1
Introduction
In the following text the changes to those sections of the flight manual which are
effected by the installation of winglets at the 18m wingtips will be given
Brief description
In addition to the wing configurations described in sections 1 up to 8 of the
flight manual winglets at the 18m wingtips are approved.
The installation of the winglets to the 18m wingtips must be executed according
to the technical note TN 873/9.
The height of the winglets is 0,50m (19.7 in.).
Section 4
Assembly and disassembly of the winglets
To assemble the winglets pull off the wingtips and slot in the winglets. The
winglets are secured to the wings by means of a quarter turn fastener. With a
screw driver turn the fastener a 1/4 turn in clockwise direction until it engages.
Removal is the opposite of that described above.
To fly with wingtips instead of winglets, secure the wingtips to the wings by
taping the gap.
Section 5
Gliding performance
Comparison to 18m span:
Thanks to the winglets the max. L/D is increased by approx. 1.5 points.
The min. sink is reduced by approx. 0.03 m/s (0.6 ft/min.)