Flying the Canberra
Looking at photos and plans of the Canberra, I would guess that Vmca was rather high (widely spaced engines, tiny rear vertical area - and with the ECM version in particular a large vertical area ahead of the CG). I'd guess then that Vapp would be fairly high and that single-engine go-arounds would not be pleasant?
Also, were RAF crews drawn from the FJ stream, or ME stream?