Rans Inc.
Section 1
Model S-7LS COURIER
General Information
Revision - B May 8, 2007
1- 6
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:
1
Engine Manufacturer:
Rotax
Engine Model Number:
912 ULS
Engine type:
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.
Horsepower rating and
Engine speed:
Maximum Takeoff (max off 5 min):
98.5 HP at 5800 RPM
Max. Continuous :
92.5 HP at 5500 RPM
Idle
(aprox.):
1400
RPM
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.