Updated: 09-Dec-2019
Metallurgical Company dedicated to the construction of conversion equipment to adapt car and motorcycle engines to aviation. They used Volkswagen and Subaru car engines and BMW, Suzuki and Guzzi motorcycle engines.
-They built various gearboxes of different sizes and various reduction rates. They were specifically adaptable for each motor.
"Different gear boxes"
For the appliance to engines like the Subaru EA-81, we have the figure below that includes the adaptation of the starter engine and some other accessory.
"Subaru engine with an Aerotech PSRU"
-PSRU stands for Power Speed Reduction Unit or gearbox in general, regardless the design. Here are more examples of Subaru.
"Three Subaru examples"
"Aerotech-pl gearbox"
"Two Volswagen cases"
"BMW adaption"
"Guzzi gearbox, both sides"
"Susuki gearbox already installed"