There certainly was a proposal to convert the Voyagers to Bi-Modes a few years back, however, it was never followed through with. Certainly would have helped to ease Capacity issues on the XC routes somewhat as well if it had gone ahead. Virgin's fleet of 221s used to do the Birmingham to Edinburgh services, all the way under the wires, always thought that was a waste for them. They now seem to have been concentrated on the North Wales Coast now though, so at least they have a use for the diesel power.Kevo00 wrote:and I believe the 22xs could be easily converted.
You can read a little more about the proposals, and perhaps why they didn't go ahead here.