There are a number of cowl designs used on the Swiss/Dornier Jungmann that were converted to Lycoming power. Pilatus, Max Daetwyler and APM all contributed to these conversions. Some aircraft also received new wings with a semi-symetrical airfoil, and some of those received a higher turtle-deck, Jungmeister style. ("Fascination Bücker" explains the history and design of these aircraft in detail starting on page 124.) The APM cowl is a particularly clever design that has intrigued Brian Karli:
I have always liked the look of the Swiss APM cowling and often wondered where you could get one. Fearing they were long out of production, I emailed Albert Zeller who steered me in the proper direction. It seems the molds are alive and well at MSW Aviation in Switzerland. Hermann Diebold was kind enough to telephone them on my behalf. He found out that MSW will gladly make you a new APM cowl using carbon fiber.
Here are some pictures of my new cowl being produced.
The cowl is made of three layers of 240g/M^2 woven carbon fibre and incorporates several strengthening layers on the most stressed spots. It is delivered ready for paint and weighs 5.1 kg.
MSW Aviation also makes the engine mount, baffling and airbox for the APM conversion.
If anyone wants this style of cowl, contact MSW Aviation at:
MSW Avaition
Rigackerstrasse 24
5610 Wohlen
Switzerland
http://www.mswaviation.com/home.html
Contact Jakob at:
Cheers
Brian