Sheet
1 of 2
ASH 26 TN No. 4
ASH 26 E
TN No. 7
Alexander Schleicher
GmbH & Co.
Segelflugzeugbau
D - 36163 Poppenhausen
Subject: Modification for optional operation with 0.45 m high winglets including a short wing piece
which are fitted at a wing separation joint.
Serial number
applicability:
All sailplanes ASH 26 and powered sailplanes ASH 26 E; all production versions.
Compliance: None, optional mod on customer request.
Reason: The positive experience regarding flight performance and characteristics which were
demonstrated with winglets on other Schleicher aircraft, suggested to develop winglets also
for the ASH 26 and ASH 26 E. As it was not feasible to fit these relatively high winglets of
0.45 m at the existing wing tip, it was necessary to develop a wing separation joint at y = 8.7
where the winglet including a short wing piece (but without additional aileron) can be fitted.
The cut short wingtip is available as another option so that the aircraft may be operated with
or without winglets. It is also permissible to fit first only the wing separation joint with the
standard wing tip and then to retrofit the winglets at a later stage.
Action: The winglets must be ordered from A. Schleicher GmbH & Co., together with the installation
parts. Because molds are required the manufacture of the parts is only permissible by the
manufacturer.
In accordance with the „Installation Instructions Wing Separation Joint 8.7m“ and Drawing
No. 260.51.9034 the original wing tip must be cut off and the parts belonging to the wing
separation joint must be installed.
The following manual pages must be exchanged for new pages with the same page
no., but with the revision entry & date "TN 7 / April 99", or "TN 4 / April 99" respectively.
The exchange of the pages in the Manuals must be documented on the respective
pages "Record of Revisions" in both manuals. In the "Index of Effective Pages"
(Section 0) the date of the exchanged pages must be changed to “09.04.99” by hand.
Legend: Flight Manual pages = FM p. // Maintenance Manual pages = MM p.
ASH 26 E :
Rev. Entry TN 7
FM p.: 1.5 1.6 4.2 thru
4.6
4.25 8.4
April 99 MM p.: 1.2 1.4 2.59 6.2 6.3 7.4 8.3 12.5
ASH 26:
Rev. Entry TN 4
FM p.: 1.5 1.6 4.2 4.3 4.4 4.6 4.13 8.4
April 99 MM p.: 1.2 1.4 1.5 2.31 6.2 6.3 7.4 8.3
12.5
Material and
Drawings:
Winglets Mod Kit for ASH 26 and ASH 26 E, made by A. Schleicher GmbH & Co.
The following drawings were new issued:
260.51.9030 Layer scheme drawing for winglet
260.51.9031 Wing separation joint at 8.7m
260.51.9032 Zig zag tape location winglet
260.51.9033 Survey drawing winglet
260.51.9034 Installation instructions wing separation joint 8.7m
260.51.9035 Wing tip survey drawing
260.51.9036 Winglet, location of tip skid / wing wheel
260.51.9037 Wooden parts of wing separation joint 8.7m / winglet / wing tip
Drawings of hardware are contained in the survey drawings.
Mass & C.G.: As the empty mass will change a little, It is necessary to redetermine the mass and C.G.
data by weighing.
\TM\26E\ 268TM07E.DOC \ //translated\RBG//
To Next Page
