ORIGINAL: kochj
When was the LAST time there was a rule change for WS or weight of the aircraft??
5kg or 11lb has been in place for a very long time....was never a consideration until the engine displacement rules increased.
I want to say the 2M limit went into place in late 1980s (when the 120 4C was allowed), but maybe it wasn't until the early 1990s.
Regards,
Dave