It would take considerable time for Rover to make ready production lines for the Meteor, and it was not until a few months later, in January 1943, that sufficient Meteor engines were available and the A27M Cromwell began production.
Det varede temmelig længe for Rover at gøre en produktionslinje klar til Meteor-motoren, og først nogle måneder senere i januar 1943 var et tilstrækkeligt antal Meteor-motorer klar, og produktionen af A27M Cromwell begyndte.