JS1 Jet Sustainer Flight Manual Supplement - Issue 1
Date of issue: 31.03.2016
Accepted section
Page 7–7
7.2. Electrical system
The electrical power of the jet sustainer system is supplied by
maintenance-free LiFePo type 12 volt batteries. One (or optionally
two) main batteries in the luggage compartment area are fitted with a
additional connector that is plugged into the jet sustainer electrical
system.
A fully charged 10Ah LifePo battery is sufficient for 6 extension-start-
retract cycles and 45 minutes of run time. At maximum RPM the
system consumes approximately 5.5A at 12V.
The Jet System battery is connected through a bulkhead fitting in the
fuselage center section shelves. The turbine ECU is located in the
center section and all related wiring is distributed throughout the glider
from this point. Three wiring looms connect the ECU to the individual
system throughout the glider.
The Main Loom contains the Glow plug/Starter, Limit Switches, Signal,
Fuel Panel, Power, Instrument and Kinematics cables. The engine box
loom contains the wires that connect the starter, glow plug, amplified
signal, kinematics and limit switches to the main loom. The fuel panel
loom connects the fuel flow sensor, fuel pump, solenoid valves and
capacitance probe to the main loom. The main loom provides the
connection to the instrument in the cockpit. All fuses are situated on
the ECU and are accessible through the inspection hole in the wheel
box.
Figure 7-6 illustrates the electrical schematic of the jet sustainer
system.
Note:
When the battery is connected to the system a leak current of
50mA is drawn by the Jet system, even if the Jet Master
Switch is in the OFF position. Disconnect the battery from the
jet system when not used to prevent battery drainage.