Coastal Forces Veterans

MTB 256 was built by JS White in Cowes to a 'modified Vosper' design.

What was the specification for MTB 256 and her sisters. How were they different from the Vosper boats?

What was the record for MTB 256?

See the specs here;

http://uboat.net/allies/warships/class/643.html

The main difference was the flush deck design and the different motors (Stirling Admirals rather than Packards).