While developing the Challenger tank the British devised an urgent conversion for their US-supplied M4 Sherman tanks to mount the 17-pounder being in service in time for D-Day as the Sherman Firefly.
While developing the Challenger tank the British devised a conversion for their US-supplied M4 Sherman tanks to mount the 17-pounder. This was applied in sufficient numbers to put them into service in time for D-Day as the Sherman Firefly.