Jackonicko
It isn't quite true to say that all ab-initio Canberra pilots were ex Hawk studes. I joined 360 Sqn at Wyton after the 100hr JP3 course and METS on the Jetstream (plus 231 OCU at Marham in 1980). Two further guys on my Finningley course also went to the Canberra, one to 100 Sqn and one to 7 at St Mawgan.
I would have to admit that Idid find the performance of the Canberra T4 a bit terrifying after the sedate Jetstream, and I joined the Sqn with about 240 hours total in my logbook - which made the AEO's in particular look at me a bit sideways.
It was a wonderful aircraft though, and for a first tour it could hardly have been bettered. On the original question of single engined safety speeds, as I recall it was about 140/145 knots for the T17.