DG Flugzeugbau GmbH
Flight manual DG-500M
2.4 Power plant
Engine manufacturer: Bombardier Rotax,
Gunskirchen Austria
Engine model: Rotax 535 C
Maximum power: Take off: 44 kw (60 PS)
continuous: 44 kw (60 PS)
Max. engine RPM at MSL: Take off
(max. 5 minutes): 7200 RPM
continuous: 6900 RPM
Max. cylinder head temperature 95°C
(cooling water): (203°F)
Cooling liquid: Water with anti-freeze for -20°C
(-4°F) for altitude flights increase anti freeze to -40°C (-40°F)
Oil for rotary valve drive: Super quality 2-stroke-oil
Propeller: Diameter 1.58 m (5.2 ft), Reduction 3:1
Manufacturer: mt-propeller Straubing W. Germany
Model: MT 158 R 125 - 1 A
2.5 Power plant instrument markings
Power plant instrument markings and their significance are shown below:
Engine speed indicator:
Centre LCD display, indication digital with 3 digits, limitation data printed
above display:
Green 6900 max. continuous RPM
Yellow 6900 – 7200 caution range
Red 7200 max. take off RPM
Max. continuous RPM:
When exceeding this RPM a blinking double point appears between the
second and the third digit in the display.
Max. take off RPM:
When exceeding this RPM the engine speed display starts blinking.
Issued: April 1997 2.5
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