Powerplant; Engine; Engine Components - Pipistrel ALPHA Trainer LSA Pilot Operating Handbook

ALPHA Trainer LSA
Pilot Operating Handbook
7.6
7.6.1
The engine installed is a Rotax 912 UL (A2 version offered as option) engine
providing 59.6 kW takeoff power. All limits as defined by the engine manu-
facturer apply. The engine can be operated with MOGAS or AVGAS 100LL,
with max. 10% ethanol and the following antiknock properties: min. RON 90
(min. AKI 87) as by Rotax specification. The propeller is driven by a gearbox.
The engine is provided with a liquid cooling system for the cylinder heads
and a ram-air cooling system for the cylinders. There is also an oil cooling
system for oil common to engine and gearbox.
7.6.2
Oil System
The dry-sump lubrication system contains 3.5 liters of oil and consists of a
tank, an oil cooler and a a mechanically-driven pump and optionally with a
thermostat. Once the oil temperature reaches 80
allowing the oil to flow through the coolers. A dipstick is present on the oil
tank to check oil quantity.
CAUTION: The engine should not be operated with less than minimum in-
dicated quantity of oil (dipstick). For extended flights, oil quantity of at least
half-level between min and max deliminators is recommended.
Engine Cooling
The engine is air and water cooled. Cooling air enters the engine bay through
an inlet on the starboard side of the spinner and is then distributed over the
engine's cylinders. The water cooling system consists of a cooler and me-
chanically-driven pump to provide cooling to cylinder heads. The heated air
exits the engine compartment through a common outlet on the bottom aft
portion of the cowling. No movable cowl flaps are used.
Carburetors
Dual needle-type Bing carburetors are used, each serving one cylinder bank.
Lifetime fliters are installed directly on the carborettors. There is no addition-
al air induction system or carburettor heat, as the engine receives pre-heat-
ed air from the aft side of the cooling radiator.
POH-162-00-40-001
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POWERPLANT

ENGINE

ENGINE COMPONENTS

SECTION 7
AIRPLANE DESCRIPTION
C the thermostat opens,
o
PAGE
7-11