Electrical System; Pitot And Static System; Instrument Panel; Engine Instruments - Rans S-7LS Courier Pilot Operating Handbook

Rans Inc. Section 1
Model S-7LS COURIER General Information

ELECTRICAL SYSTEM

The S-7LS electrical system is a 12-volt negative ground system. An integral AC
generator mounted in the aft end of the engine powers it. It stores energy in a sealed
maintenance free battery, located in the tail cone. Power is regulated by a solid-state
regulator-rectifier located on the firewall.
Charge or discharge of the battery is indicated at a panel -mounted voltmeter.

PITOT AND STATIC SYSTEM

The S-7LS incorporates both pitot and static sources on the same probe. The probe
extends forward of the left wing. The probe is attached to the instruments with plastic
line joined with quick connectors.

INSTRUMENT PANEL

Engine Instruments

The aircraft is equipped with a tachometer, engine oil temperature gauge, engine oil
pressure gauge, cylinder head temperature gauge, fuel pressure gauge, voltmeter and
an hour meter. The cylinder head temperature gauge is used to monitor the coolant
temperature also.

Flight Instruments

The AC is equipped with airspeed indicator, vertical speed indicator, altimeter, slip
indicator, and compass.
Revision - B May 8, 2007 1- 14