It was realized in the Air Ministry by the summer of 1941 that to maximize the effect of firebomb attack the equivalent of the German Kampfgruppe 100 was required, skilled in navigation so that it could carry out a fire-raising attack that the following bombers could use for their own navigation.94 Portal used Kampfgruppe 100 as his example when he suggested in August 1941 to the government scientific adviser, Sir Henry Tizard, the need to move to a target-marking system as soon as possible.
Pathfinding and target designation
