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 ag-
type lever is found on the rewall 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 ag-type lever on the rewall. Deect the lever
so that its ag end points towards the rewall. Having done this correctly, you will feel the ag-lever
jam into position. Battery reconnection can be done in-ight as well (e.g. following a sucessfully rec-
tied emergency situation) but only from the left-hand seat, since you cannot reach the ag-lever
from the right-hand side of the cockpit.
Aircraft and systems on board