The Me-163B was equipped with two 30mm cannons mounted in the wing roots. The aircraft featured a revised 16B gun sight, a 90mm armoured glass beneath the plexiglass canopy and armour behind the pilot’s back over the nose cone. Nearly 300 Me-163s were in front line service at the end of the war but the aircraft gained only 9 victories. Although casualties were high in the Me-163 units only 14 of the aircraft were lost in combat. A full 80% of the losses came during landings and take offs. The Me-163 was an exceptional aircraft, many years ahead of its time.
In spring of 1944 the design of a two seat Me-163 version started to facilitate the training of the pilots that were for combat on the Me-163Bs. The first prototype was an adaptation of the stretched Me-163B airframe with the fuselage T-Stoff and ammunition tanks removed from the bays immediately aft of the cockpit to make space for the instructor’s cockpit. The Me-163S was ready in May 1944 and was flown for the first time by pilot Hohmann. It was flown as a glider, being towed off the ground by a Bf-110. Following trials a decision was reached to produce 42 of the S two seaters. The S version had a differently shaped instructor’s canopy. Only a small number were completed, as the combat version was more important.