Thank you so much, chaps. I had NO idea that any of the three weapons actually made it into squadron service - and none of the books and magazine articles made any mention of more than trials.
It's also cheering to know that despite all the niff-naff, bs and triv that has driven an understandable exodus there are still 'old and bold' blokes like Hairyeng and Old Dog and YS at the coal face, and it feels like a bit of a privilege to have them contributing to this thread.
YS: But Harpoon was originally intended to be carried underwing?