Pipistrel Sinus 503, Flight And Maintenance Manual

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SINUS motorglider
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SINUS motorglider
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Schematic of fuel system - model 912 (with fuel return circuit)
Electrical system
description: Double separated magneto ignition. Standard, 12 V circuit charges the
battery and provides power to all appliances and instruments.
master switch:
key type
magneto switches:
separated for each magneto
other switches:
fused and equipped with control lights
battery:
12 V, 8 Ah or 5 Ah
Measured power
comsumpiton of some
circuit brakers:
Landing light: 4.5 A,
Nav/Strobe lights: 1 (steady) - 2 (peak) A , Cockpit light: 0.5 A,
Radio & Transponder: Please consult item’s operating manual
Battery disconnection system
On Sinus ultralight motorglider, the main battery can be disconnected from the circuit.
There are two handles in the cockpit used to operate the battery disconnection, the battery discon-
nection lever and the battery disconnection ring. The battery disconnection lever, which is a red flag-
type lever is found on the firewall above the main battery on the left-hand side of the cockpit. This
lever has an attached wire which leads to the battery disconnection ring on the instrument panel’s
switch column.
To disconnect the battery from the circuit, simply pull the battery disconnection ring on the instru-
ment panel’s switch column.
To reconnect the battery back to the circuit, use the flag-type lever on the firewall. Deflect the lever
so that its flag end points towards the firewall. Having done this correctly, you will feel the flag-lever
jam into position. Battery reconnection can be done in-flight as well (e.g. following a sucessfully rec-
tified emergency situation) but only from the left-hand seat, since you cannot reach the flag-lever
from the right-hand side of the cockpit.
Aircraft and systems on board