FL170, the post was deleted from before mine that said that this aircraft actually was a Tomahawk. Next time I'll quote it for people reading later-on.
Perhaps someone should have told that pilot that a rotax being both water AND air cooled, if the coolant is lost (possible scenario) that it can be safely flown home at 4,000rpm or less (of a max 5,800'ish). There would be very few other reasons as to why it would overheat, eg busted hose, coolant dropped out etc etc. Also demonstrates the importance of multiple CHT and EGT gauges which are generally not standard these days, with these the pilot can make a more informed decision about what is going on under the hood before ditching.