Flight Manual STEMME S 10 Date of Issue Oct. 1, 1990 page: 44
Amendment No.: 3 Date: May 26, 1993
A4010013_08a-44/13.11.15/2:34
Fig.: Propulsion System Engine - Propeller
1. Retractable propeller
1.61 diameter in operating position. Extending
by centrifugal forces, retracting by readjusting
springs; the central body is of aluminum,
blades are of fiber composite.
2. Gear
Fivefold high-performance V-belt, gear reduc-
tion: 1.18; quiet operation, fail-safe.
3. Flexible disk
for compensation of angle errors and angular
movements.
4. Drive shaft
Carbon fiber composite, mass: 2 kg, diameter:
65 mm, length: 1.9 m, first critical bending
frequency: > 5,200 RPM.
5. Splined sliding joint
for compensation of axial movements.
6. Highly elastic clutch
for damping of torque oscillations and for redu-
cing the torsional proper frequencies.
7. Bivalent centrifugal clutch
with servo effects. It damps starting shocks
which could be critical for the extension of the
propeller, protects against overload, and allows
a decoupled slow down of the retractive
propeller after turning off the engine.
8. Engine
4 cylinders, 4 phase flat engine, single magne-
to ignition, cooled by ram air.
7.7 Fuel System
The fuel system consists of two independent fuel tank systems with one container at each outer area of the
inner wing, both have a fuel cock, water separator and filter. These have been constructed and fitted in such
a way that fuel delivery and pressure are available for the proper working of the engine in all normal operating
conditions. The left hand fuel tank is operated by the mechanical engine fuel pump and the right hand tank by
the electrical fuel pump.
Each fuel pump can only supply fuel out of the fuel tank it is connected to. When both systems are in
operation, the drawing down of fuel is not evenly balanced.
[One backup fuel pump (electrically driven) is located parallel to each of the two main pumps. They are
operated with one common switch labeled "Backup Fuel Pump" located on the right face of the instrument
panel. The circuit breaker (10 Amp.) is found directly above the switch.]
3a
Bild einkleben: Schema Antriebssystem
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