Posted in ROTAX PRESS RELEASES Sun-n-Fun 2021 – Day 2 William 2021-04-14 Author: William Related Articles Rotax announces 915 iS engine. EAA AIRVENTURE 2023 – Specialized tools to aid in Rotax iS engine diagnostics. LAG Ultralight offers training in Latin America. Rotax iS with single lever control on display at SnF 2017.