Page Date: 20. April 2002 7 - 9
Section 7
Description and Operation of Aircraft and Systems
PilotĀ“s Operating Handbook
EXTRA 300S
7.10.2 OIL SYSTEM
The oil is cooled by a Two Cooler System mounted on the left hand side in the engine
compartment.
Alternatively a Single Cooler System is available. In this case the oil is cooled by one oil
cooler mounted on the aft, right hand side of the engine. The oil level is determined by a dip-
stick.
Oil capacity:
Max sump capacity: 16 qts.
Min sump capacity: -Acro 12 qts.
-Normal 9 qts.
For temperatures and oil grades refer to Section 1.7.
7.10.3 ENGINE INSTALLATION
The engine is mounted with four shock-mounts (Type LORD or BARRY CONTROLS) to the
tig-welded steel tube engine support, which is attached to the fuselage with four bolts on the
firewall axis.
The engine cowling is divided into two parts, a lower and an upper part both made of glass-
fibre reinforced epoxy. The parts are fixed by a number of screws and the upper cowling has
a separate hatch for easy access to the oil dip-stick.
7.10.4 PROPELLER
The propeller is a 4-blade wood composite, constant speed propeller type MTV-14-B-C/
C190-17 with a diameter of 1,9 m, or optional with a 3-blade propeller type MTV-9-B-C/
C200-15 with a diameter 2,0 m .
7.10.5 THROTTLE
Control lever (cub-type) mounted on the left side in cockpit.
7.10.6 MIXTURE
Vernier control located at right side of cockpit (red knob).
7.10.7 RPM-CONTROL
Vernier control located at left side of cockpit (blue knob) Push-pull type with friction lock on
the left side of the rear cockpit.
Preselection of RPM possible due to constant speed governor.
Page Date: 31. January 2006
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