The mechanism for controlling the trim tab on the rudder is causing issues.
Only two drawings are available, which are far from sufficient to build the gearbox. Thanks to the very straightforward support from the Aircraft Museum in Dübendorf, I was able to take direct measurements from the original aircraft. Using this data, the gearbox was then designed in CAD. It consists of 13 individual parts, 14 ball bearings, 4 plain bearings, bolts, and nuts.
Production of the individual parts has already begun.
Original Kompensationsmechanik
Die ausgesprochen massive Bauweise und die ungewöhnliche Nummerierung der beiden vorhandenen Zeichnungen lassen die Vermutung zu, dass es sich um das Originabauteil der N-20 Aiguillon handelt. Das würde auch erklären warum die Zeichnungen in den Unterlagen der N-20.2 Arbalète nicht zu finden sind.