Diamond DA42 do-over
Out with the Thielerts, in with the AE300s
Like the Thielerts, the AE300s use Mercedes-Benz automobile engines as their platforms. But where TAE made modifications, Austro sticks with the stock Mercedes. The AE300’s pistons, camshafts, valves, cylinder heads, and crankshaft are straight from the Mercedes assembly line. Austro figured that with Mercedes’ experience—and its $550 million investment in development and testing costs—the two-liter, inline four-cylinder would be best if left as originally designed.