The British Response
In contrast to the laissez-faire attitude of the Americans, who correctly assumed that there would never be enough Tigers in the field to present a potent threat, the more experienced British had observed the gradual increase in German AFV armour and firepower since 1940 and had anticipated the need for more powerful anti-tank guns. As a result of the lessons learned in France work on the Ordnance QF 17 pounder had begun in late 1940 and in 1942 100 early-production guns were rushed to North Africa to help counter the new Tiger threat. So great was the haste that they were sent before proper carriages had been designed and constructed, and the guns had to be mounted in the carriages designed for 25-pounder howitzers.
Hasty efforts were also made to get Cruiser tanks armed with 17 pounder guns into operation as soon as possible. The A30 Challenger was already at the prototype stage in 1942 and was pressed into service, but this tank was poorly protected, having a front hull thickness of only 64mm. It was unreliable, and was fielded in only limited numbers - only around 200 were ever built although crews liked it for its high speed. The Sherman Firefly, armed with the 17-pounder, was a notable success even though it was only intended to be a stopgap design. Fireflies were successfully used against Tigers. In one famous engagement, a single Firefly destroyed three Tigers in 12 minutes with five shots and as a result of the superior Allied product capability over 2,000 Fireflies were built during the war. Five different 17-pounder-armed British tanks and self-propelled guns saw combat during the war. These were the A30 Challenger, the A34 Comet, the Sherman Firefly, the 17-pounder SP Achilles and the 17-pounder SP Archer.