Did a spot of ME training on the Vickers Varsity which was powered by 2 Bristol Siddley Hercules 264 engines - it was a derivative of the Wellington and the Viking.
Rotation speed was around 85kts and 2 eng safety speed was 105kts. Thus, if an engine failed between 85 and 105kts, you were going to crash. Directional control between those speeds could only be maintained by reducing boost on the live engine.
Happy days!
mcdhu