The Soviet Union’s premier twin-engine attack bomber was the Pe-2, also known as Peshka, the Pawn. Designed by Vladimir Petlyakov, the Pe-2 was put in production in 1940. More than 450 had been produced by the time of the German attack on Russia in the summer of 1941, however, only only a few dozen aircraft were operational.
Originally powered by a pair of Klimov M-105-R engines the aircraft had a top speed of 445 kilometers per hour at sea level. Initial offensive armament was a 12.7 mm machine gun on the starboard and a 7.62 mm machine gun on the port side of the nose. Initial defensive armament was a rearward firing 7.62 mm flexible machine gun fired by the navigator from the rear of the cockpit canopy. The ventral gun, also a 7.62 mm weapon, was aimed by the gunner, alone in the middle of the fuselage, using a periscopic mechanism attached to the gun mount. In the field some units installed flexible 7.62 mm machine guns firing through portholes in the sides of the fuselage just behind the wing root.
Maximum bomb load was 1,000 kilograms. Normal bomb load was 600 kilograms. Four 100 kg bombs could be carried on mounts in the internal bomb bay. Initially a 100 kilogram bomb could be carried in each engine nacelle behind the landing gear. These were ultimately closed off. The external bomb load was carried under the wing center section between the engines: four 250 kilogram bombs, or two 500 kilogram bombs.
In 1942 experiments were conducted using the Pe-2 as a dive bomber. Using the extendible slatted speed brakes outboard of the engines the Pe-2s would dive at a 70 degree angle in line astern, spaced at 500 to 600 meters. After each aircraft dropped its bombs the attackers would form a ‘carousel’ keeping the target under constant attack. Fighters established a high cover over the bombers with two or three fighters diving with the bombers to provide support.
German pilots flying the Bf 109E found it difficult to catch the speedy little dive bomber. Later German fighters, with higher powered engines and greater speed potential could catch and down the Pe-2. As a result, aircrews complained about weak armament and insufficient armor plate protection for the ventral gunner. The 7.62 mm defensive guns were replaced with heavier caliber 12.7 mm weapons and armor protection for the navigator/rear gunner and the ventral gunner was extended. This change affected the speed of the aircraft which required a power plant change to the M-105-PF. The 130 horsepower increase allowed the Pe-2 to reach 460 kilometers per hour at sea level in a clean condition. The increased weight of the weaponry, armor, and external mounting of the bombs compromised the speed under operational conditions. and the pilots of the Bf 109Fs and Gs took notice of the increased caliber of the defensive weapons.
The Pe-2 had a reputation for difficult handling and inexperienced pilots found it impossible to land with one engine out. It proved demanding but not impossible to fly.
Sources: Soviet Combat Aircraft of the Second World War: Volume Two: Twin-Engined Fighters, Attack Aircraft and Bombers, Yefin Gordon and Dmitri Khazanov with Alexander Medved, Midland Publishing Ltd., Leicester, England, 1999
Profile 216: Petlyakov Pe-2, Malcolm Passingham and Waclaw Klepacki, Profile Publications Ltd., Windsor, England, 1971