Self-sustainer engine

Self-sustainer redefined
Our two-stroke self-sustainer system is trend-setting. We have consequently advanced the well-known and almost 30 year old self-sustainer concept, and completely re-engineered the propulsion system.
The second propulsion system besides our very successful electric self-launcher Antares 20E had to meet the following requirements:
- high climb rates, also at high altitudes
- a reliable engine start in the air
- noticeable improvements in terms of reliability
- a very low vibration level
- a high level of comfort
Safe return

When wind milling with 130 km/h, you will need 93 meters - almost twice the altitude as at 110 km/h. At 140 km/h the loss of height increases to a drastic 130 meters.
For security reasons the necessary windmill speed should not be higher than 120 km/h. Regarding these aspects our Antares 18T’s engine, which has an especially designed propeller, securely starts already at 110 km/h.
Another critical moment occurs because of a too small margin between the speed when the engine starts to windmill and the speed which triggers the engine speed limiter. The latter switches off the ignition. If this speed margin is too small, a pilot might - when the engine does not immediately fire up - more or less unintentionally fly too fast. At this point, the speed limiter will immediately shut the ignition back down while the engine tries to fire up. With our Antares 23T the margin between starting up the turbo and over-speeding is approximately 30 kph / 16 kts, a speed difference which even less experienced pilots should be able to safely manage.
The problem can be completely avoided when equipping the aircraft with a throttle lever. In this configuration an engine speed limiter is no longer required. We are offering this equipment optionally.
Finally, in-flight starting gets even safer by installing an electric starter motor, which is also available as an option.