” I went to the ‘Historic’ forum and typed ‘Strikemaster’ into the search box. 29 results came up -BUT- it seems that I have to pay £69-99 to read them!!!!!!!! “

The forum is part of key.aero. You have clicked on the Historic button in the yellow menu bar which takes you to news articles published by FlyPast, Aeroplane Magazine etc. For access to some of the articles requires a subscription. The forum is free.