Rotax 535

The Rotax 535 is an Austrian aircraft engine, that was designed and produced by Rotax of Gunskirchen for use in motor gliders.

The first application for type certification to JAR 22, Appendix H, was made on 29 June 1982 and the first certification was granted on 27 April 1983. It is out of production and is no longer offered for sale by Rotax.

Design and development
The Rotax 535 is a twin cylinder two-stroke, in-line, 521.2 cc displacement, liquid-cooled, gasoline engine design, with a 3:1 belt reduction drive. It employs dual Bosch or Ducati magnetic high-voltage condenser ignition systems, one or two carburetors and produces a maximum of 60 hp at 7200 rpm. It runs on 96 octane automotive gasoline or 100LL avgas. Lubrication is 50:1 super two stroke oil premixed with the fuel.

Variants

 * 535A
 * Equipped with twin Tillotson HR or Mikuni BN 38 diaphragm carburetors and a Mikuni DF 44 diaphragm fuel pump. Produces 60 hp at 7200 rpm. First certified on 27 April 1983.


 * 535B
 * Equipped with twin Tillotson HR or Mikuni BN 38 diaphragm carburetors and a Mikuni DF 44 diaphragm fuel pump. Produces 55 hp at 7200 rpm. First certified on 27 April 1983.


 * 535C
 * Equipped with one Mikuni BN 38 diaphragm carburetor and a Mikuni DF 44 diaphragm fuel pump. Produces 60 hp at 7200 rpm. First certified on 12 June 1987.

Applications

 * Glaser-Dirks DG-500M
 * Rolladen-Schneider LS9 - prototype
 * Schempp-Hirth Janus
 * Schempp-Hirth Nimbus-4
 * Schleicher ASH 25