65 knot limit for 40 year old aircraft in Sumburgh
The mighty Vickers Viscount with 4 noise converters for engines had an indirectly contractual limit of 65 knots when operating into Sumburgh. Reason? The self loading freight had to then get on a helo and land offshore on the North Sea rigs. At that wind speed, apart from equipment, even people get blown over.
At "gusting to 73" from tower it certainly gets your attention and reminds you to get that control lock in early.
Wind additives on final were arbitrary and both pilots simply went with what they felt comfortable with. NB; pre FOQA/QAR
But the job was done.