Pipistrel Sinus 503 User Manual

16
SINUS motorglider
www.pipistrel.si
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17
SINUS motorglider
www.pipistrel.si
REV. 0
Limitations
Engine, fuel, oil
Engine manufacturer: ROTAX
Engine types: ROTAX 503, ROTAX 582, ROTAX 912
The engine
TEMPERATURE °C / ROTAX ENGINE 503 UL 582 UL 912 UL
cylinder head temp. (CHT); min., work, highest 100; 200; 250 110; 130; 150 80; 110; 150
max. CHT dierence 20 10 /
exhaust gas temp. (EGT); normal, max. 460-580; 650 500-620; 650 650-800; 900
max. EGT dierence 25 25 30
air intake temp. (AIR); highest 40 40 40
cooling uids temp. (WATER); min., highest / 50; 80 50; 110
oils temp. (OIL TEMP); min., normal, highest / 50; 90-110; 140
RPM, PRESSURE 503 UL 582 UL 912 UL
oil pressure (OIL PRESS); lowest, highest / / 0,2; 6,0
engine revolutions (RPM); on ground recom. 6400 6100 5500
RPM on ground; max. allowable 6800 6800 5800
magneto check at (RPM) 3500 3500 4000
max. single magneto drop (RPM) 200 200 300
Fuel and oil
ROTAX ENGINE 503 UL 582 UL 912 UL
recommended fuel leaded or
unleaded super
leaded or
unleaded super
unleaded super
fuel to be discouraged from using everything
under AKI 87
everything
under AKI 87
leaded* or
100LL*
recommended oil super 2-stroke
API-TC
super 2-stroke
API-TC
API SJ SAE
10W-50
*Engine life is reduced. Should you be forced to used this kind of fuel, change of engine oil every
50 ight hours is crucial. Please consult the manufacturer on which type of oil to use.
IMPORTANT!
Two-stroke engines should be powered only by fuel complying with MON 83 (or higher) or RON 90
(or higher) classication. As for mixing fuel and oil manually, it is best to use recommended oil (see
above). Dedicated lead additives should not be used (see detailed instructions in the engine manu-
al).
MIXING RATIO: 50 UNITS of FUEL and 1 UNIT of OIL (e.g. 2 dl of oil every 10 litres of fuel)
When using engines equipped with oil injection pump it is vital to monitor the oil level in its contain-
er. There should always be enough oil to suce for the intended ight duration, including reserve.
Four-stroke engines should only be powered by unleaded fuel, for lead sedimentation inside the en-
gine shortens its life. Provided you are unable to use unleaded fuel, make sure engine oil and the oil
lter are replaced every 50 ight hours.

Pipistrel Sinus 503 Specifications

General

Brand	Pipistrel
Model	Sinus 503
Category	Aircrafts
Language	English