PVD came to corporate/business aviation as well, long ago.
The Gulfstream One was thus fitted...but only one that I know of, it belonged to the American radio/television personality, Arthur Godfrey.
CATIIIA was possible.
BEA TriStars were fitted with PVD, and it worked very well indeed.
Of course, it was not absolutely required, as the L1011 was CATIIIB right out of the factory, not added on (certificated) later.
Ahhh, Lockheed, a superb aeroplane...