The lads have just got A-12 disassembled over the last few weeks, the upper wings and centre-section needed a lot of work due to mis-match of the profiles and interestingly one of the lower wings was found to be from an Aero built Bü133.
One problem that has never gone away is the RPM gauge which under-reads at high RPM and unfortunately is too badly worn to repair. I've attached a couple of pictures of it to see whether you recognise it and whether you know of a source for a replacement please? Let me know your thoughts.
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