Hi there
Many, many aircraft have visited the Don for, supposedly, trials.Invariably, the vendor/pilot was told, thanks but no thanks after the pilots had a jolly around the place in whatever the visitors brought.Such an aircraft was the Valmet Vinka, from Finland, which was on a sales tour of Europe.The pilots had a go of it and us techs crawled all over it but there was no hope of a buy so they shook the guy's hand and sent him on his way....it was a guage of official interest if any aircraft stayed for more than a few days and especially if it's sales literature started to appear on every surface, such as the S-92 stuff.I remember all the Maritime stuff that came in, before the Casas were bought.Every thing with two engines and a hole for crew and a radar was flown in, including some near-obsolete stuff(748, F27).One could also see sales vultures around the camp, pressing senior flesh and hawking their stuff.Ah, it could be very entertaining, to see who was being groomed by interested vendors...
regards
GttC