FES Flight Manual, v1.18 May 2020
Page 33 of 35
8. Sailplane handling, care and maintenance
8.1 Introduction
This chapter contains the manufacturer's recommended procedures for proper
handling and servicing of the sailplane with FES. It also identifies certain inspection and
maintenance activities, which are needed to retain performance and dependability.
8.2 FES inspection periods
The instructions for continued airworthiness as provided in the FES Maintenance
manual must be followed.
8.3 Sailplane alterations or repairs
As described in the flight manual of the pure glider version of the sailplane.
8.4 Ground handling/road transport
a) Towing / Pushing
Follow the general information as described in the manual of the pure glider version with
the addition of the following remarks.
Protect the propeller blades on the ground with the special blade protection cover,
that prevents the propeller blades from opening. Do not forget to remove the propeller
cover before the flight!
On some newer FES equipped gliders, propeller tips have integrated metal plates.
Small permanent magnets are integrated into the fuselage to hold the propeller blades
folded. In this case, protection covers can be used as well, but are not necessary!
Caution:
Make sure that the propeller is in a horizontal position when lifting
aft part of the fuselage to attach tail dolly.
Warning:
Newer use a propeller or spinner for pushing, pulling or lifting the
tail!
b) Hangaring
Follow the general information as described in the manual of the pure glider version.
Observe FES-Battery specific instructions for storage. See FES BATTERY PACK GEN2
manual, section 8.
c) Tie-down
In dry conditions when rain is not expected during the night, the canopy cover is
sufficient to protect the motor from moisture. FES batteries must be protected against
moisture. It is enough to tape the battery compartment cover in dry conditions.
When rain is expected, do not leave an FES equipped sailplane outside it the rain,
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