Turboprops were, for a long time, like blue moons in light aircraft, you rarely saw one.
Things are changing and there are more and more coming onto the market. To date this offering from Heron Turbines, in Greece, is the best fit for a Twister, if you can live with the 40 litres per hour fuel burn...
Weight is just 40kg dry, Power is 130shp - not sure what height that power is rated to but the service ceiling of the engine is 28,000 ft and finally the price. At Oshkosh they are offering a show price of just $35,000 USD (£28,700). This is around a third of the price of the Turbotech from France (see blog post from September 2021). Turbotech's price has gone up and is now around 90k Euros when I last checked.
Read more here: https://www.kitplanes.com/heron-turbine/
and here: https://www.heronengines.com/
