A common question from affordable aviation enthusiasts asks about four stroke engines, either for genuine Part 103 ultralights (available but somewhat more challenging) or for very light aircraft. Such inquiries are commonly for aircraft that have previously used a Rotax 582.
The last two-stroke offered by the big Austrian engine manufacturer — builder of the ubiquitous 9-series four-stroke engines — was the Rotax 582. Producing 65 horsepower and earning a good reliability rating over many years, the 582 has been a dependable powerplant for the lightest powered aircraft that are larger and heavier than genuine Part 103 ultralights.
2020 Sensation!
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