Originally Posted by
FE Hoppy
Light weight gives very high climb rate and therefore it will enter ALT CAP very early. If an engine fails at that point the capture manoeuvre is not modified and so the aircraft starts bleeding speed trying to fly the curve. This can put you into underspeed pretty quickly if not addressed. Transport Canada didn't like it. So the fix was to restrict the minimum take off weight and therefore thrust to weigh ratio.
Good. 25 years later after this:
https://aviation-safety.net/database...?id=19940630-0