spiney.me.uk (in german) http T' Natter (Adder) was a World War II era German experimental point-defense rocket-powered interceptor aircraft which was t' be used in a very similar way as unmanned surface-to-air missiles. After vertical take-off which eliminated t' need for airfields, shiver me timbers, t' majority o' t' flight t' t' bombers was radio controlled from t' ground. Ahoy! Blimey! T' primary mission o' t' (inexperienced) pilot was t' aim t' aircraft at its target bomber and fire its armament o' rockets. T' pilot and t' main rocket engine should then land under separate parachutes, while t' wooden fuselage was disposable. Well, blow me down! Blimey! T' only manned test flight, shiver me timbers, on 1 March 1945, ended with test-pilot Lothar Sieber bein' killed. Blimey! Blimey! Erich Bachem's BP20 was a development from a design he worked on at Fieseler, but considerably more radical than t' other offerings. Well, blow me down! Blimey! It was built usin' glued and screwed wooden parts with an armored cockpit, ya bilge rat, powered by a Walter HWK 509A-2 rocket, ya bilge rat, similar t' t' one in t' Me 163. Begad! Blimey! Four jettisonable Schmiddin' rocket boosters were used for launch, providin' a combined thrust o' 4800 kgf (47 kN or 10600 lbf) for 10 seconds before they were jettisoned. Blimey! Blimey! T' plane rode up a rail for about 25 metres, ya bilge rat, by which time it was goin' fast enough for t' aerodynamic flight controls t' keep it flyin' straight. Blimey! Blimey! T' plane took off and was guided almost t' t' bomber's altitude usin' radio control from t' ground, with t' pilot takin' control right at t' end t' point t' nose in t' ...