The reason I ask is that an "ex crew" stated to me that "any of the 5 crew could initiate ejection, the three rear crew having ejection handles on their seats" and then the "three rear crew were slid along rails in their seats towards the hatchway whose door had been blown off with explosive, and slid out of the aircraft!!!!Before the pilot /CP could eject as normal!"
Doesnt sound like the vulcan or victor I know!