HF
Link should work now. For info it is a link to avsaf.org and is a report on 2 ST's which were lost while being operated by Okanagan back in '85. The second one was lost while testing to figure out what happened to the first one. Pretty tragic circumstances and as I said previously, not entirely conclusive.
A Kiwi outfit operated one on logging for a while but possibly not that successful and they did have a B prior so there are possibly guys around who could tell you the difference.
PR aka Ned should have some contacts - I left there about 20 years ago.