FES Discus 2c - 7 General Sailplane and Systems Description; Introduction; Cockpit Controls; Instrument Panel

FES Flight Manual, v1.18 May 2020
Page 31 of 35
7. General sailplane and systems description
7.1 Introduction
This Chapter describes the sailplane, its systems and provided standard equipment
with instructions for use.
7.2 Cockpit controls
FES equipped sailplane adds a power switch to the controls of the standard version
of the sailplane. The power switch can be implemented as a toggle switch or a key switch,
depending on the type of sailplane. If a toggle switch is used, it is located on the right side
of the cockpit, whereas the key switch is mounted on the instrument panel.
7.3 Instrument panel
The FES equipped version of the sailplane has an FCU instrument mounted on the
instrument panel in addition to other instruments. The FCU should be in an easily
accessible location on the left side of the panel. The most suitable place depends on the
specific glider type and other instruments.
The FCU instrument manual describes the FCU instrument in detail.
7.4 Landing gear system
As described in the flight manual of the pure glider version of the sailplane.
7.5 Seats and safety harness
As described in the flight manual of the pure glider version of the sailplane.
7.6 Pitot and static system
The airspeed indicator must be connected to the pitot pressure source located on the
vertical stabilizer and to the static pressure source located on the aft part of the fuselage
(detailed location of ports depends on the specific glider type). On FES equipped
sailplanes the pitot probe cannot be located on the nose!
Note: Consult the sailplane manufacturer regarding the optimal configuration
of pneumatic sources for a specific FES equipped sailplane type.
For more info about measuring probes, visit www.esa-systems.com.
Total energy compensation source is generally located on the vertical stabilizer,
below pitot source. When FES is installed on a used sailplane and there is only one port
available (for total energy compensation but not for pitot), then this port is used as a pitot
source. In this case, electronic compensation can be used instead.