Seat Belts And Shoulder Harness; Powerplant; Carburetors And Fuel Pumps; Exhaust System - Rans S-7LS Courier Pilot Operating Handbook

Rans Inc.
Model S-7LS COURIER
SEAT BELTS AND SHOULDER HARNESSES
The aircraft is equipped with a four-point pilot restraint system. At any time the pilot is
seated in the aircraft with the intent of moving it, the pilot restraint system must be
securely fastened. Always ensure the buckle is snapped into its locking position and the
belt tension is snug and the shoulder harness are placed over the shoulders and
properly adjusted. The empty seat restraint system must be secured even when not
in use. NOTE: Always ensure the pilot restraint systems are not restricting any control
system movement.

POWERPLANT

The S-7LS is powered by a Rotax four stroke, four cylinder horizontally opposed engine.
The cylinders are ram air-cooled and the cylinder heads are water- cooled. The ignition
is of the electronic type.
The propeller is driven via a reduction gear. The RPM indicated is engine- RPM. The
engine is started through an electrical starter.
Number of Engines:
Engine Manufacturer:
Engine Model Number:
Engine type:
Horsepower rating and
Engine speed:
Maximum Takeoff (max off 5 min):
Max. Continuous :
Idle (aprox.):

CARBURETORS AND FUEL PUMPS

Two Bing carburetors with float chambers are used on the Rotax engine.
An engine driven fuel pump supplies fuel to both carburetors. A electrical back up fuel
pump (fire wall mounted) is used during take off, climb out, landing and in case of engine
pump failure.
A separate air filter is attached to each carburetor.

EXHAUST SYSTEM

The exhaust system consists of an after muffler and four pipes made from stainless
steel. A stainless steel wrap around the muffler provides cabin heat and heat cups
attached to both sides of the muffler canister provide heated air for the carburetor heat.
Revision - B
1
Rotax
912 ULS
Normally aspirated, four stroke, horizontal opposed, gear
drive, liquid cooled cyl.- heads, air cooled cyl., carburetor
equipped four cylinder engine with 1352 cm³(82.5in³)
displacement.
General Information
98.5 HP at 5800 RPM
92.5 HP at 5500 RPM
1400 RPM
Section 1
May 8, 2007 1- 6