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33050 Mortegliano (UD) – Italy
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Maintenance Manual
FLY SYNTHESIS TEXAN
TOP CLASS 580 ISR
(For Rotax 912 ULS
versions)
Identification: MM_TC_580_Rev.2
Page: 15 of 77
Date: 15/02/11
Issued: C. Cosatto
Verified: C. Cosatto
Approved: C. Cosatto
Revision Description:
Placard update
3.1
ENGINE SPECIFICATION
The approved power plant installations for the TEXAN TOP CLASS 580 ISR is the
ROTAX 912 ULS. For full detail of engine construction see ROTAX manuals.
3.2 ROTAX 912 S/ULS
Version
Performance
Torque
Max.RPM
kw hp rpm
Nm ft.lb rpm
912 S/ULS
69.0 95.0 5500
128 94 5100
Continuous
max.5 min
73.5* 100* 5800*
*with Rotax air box and
exhaust system
5800
Bore
Stroke
Displacement
Compression ratio
84mm ( 3.31in )
61.0mm ( 2.4 in )
1352cm ( 82.6 cu.in.)
10.5 : 1
3.3 ENGINE OVERHAUL
Rotax:
After
1500
hours for Rotax 912ULS
3.4 ENGINE CONTROLS
Engine control is by one throttle control, operating both carburettors simultaneously. A
choke is provided for starting a cold engine. The twin-magneto ignition system is
controlled by the Master Key.
The engine starter is actuated by the Master Key, that control the starter relay, when the
master switch is ON. With master switch OFF the starter will not operate.
An Electric fuel pump supplies fuel pressure prior to the engine starting and running and is
used as back up for the engine driven fuel pump in case of failure.
3.5 ENGINE INDICATIONS
The rpm indicator indicates engine speed (RPM). This is an electronic unit.
The cylinder head temperature (CHT) indicator shows engine temperature.
The oil pressure indicator indicates oil pressure.
A separate indicator indicates the oil temperature. An Exhaust Gas Temperature system
(EGT) is also installed.