The RN had faced Italian SM79 torpedo bombers since not long after the outbreak of war with Italy in June 1940. HMS Kent was torpedoed by one on 17 Sept 1940 & Liverpool on 14 Oct 1940. The first aircraft to attack Illustrious on 10 Jan 1941 were two SM79 torpedo bombers attacking at low level and intercepted by her Fulmars. Fortunately the Italians didn't have the numbers at that time for the kind of mass attack faced by Force Z.
In 1940 the RN had also faced the threat from Luftwaffe torpedo bombers, although again these made few attacks and were in small numbers.
- In the morning of October 7, 1939, a concentration of British warships were located in the North Sea by a Heinkel He 111 H-6 reconnaissance aircraft of the KG 26 photographic unit.
This powerful naval group was attacked by 127 Heinkel He 111 and 21 Junkers Ju 88 bombers from the X
Fliegerkorps.
The
Kriegsmarine staff was also ordered to co-ordinate an aerial attack of its naval air arm. Five Heinkel He 59 torpedo-bomber floatplanes and 23 Dornier Do 18 reconnaissance flying boats were deployed but, despite hours of searching, they failed to contact the enemy and no concerted
Luftwaffe attack was mounted.
On October 22, a new
Luftwaffe-Kriegsmarine joint action was attempted against convoy FN24 from Methil to Orfordness.
The attack involved three Ju 88s of the 1.KG 30 and ten Heinkel He 115 floatplanes of the 1./Kü.Fl.Gr.406, but it turned out that the Ju 88s were faster and reached the convoy much earlier than the He 115, alerting the British defenses. When the naval planes began the attack, they were intercepted by Hawker
Hurricane and Supermarine
Spitfire fighters of the 46th and 72nd RAF squadrons that managed to shoot down four floatplanes and damaged others.
The disaster was used politically to the benefit of the
Luftwaffe. In November 15,
Reichsmarshall Hermann Göring ordered the reduction of the
Küstenflieger units to just nine long-range reconnaissance and nine multipurpose
Staffeln.