The Messerschmitt 109TL was an alternative design proposed as a backup for a fighter version of a plane nicknamed what?
Messerschmitt Bf 109TL The Messerschmitt 109TL was a turbojet fighter designed in 1943 by the Messerschmitt company for the "Luftwaffe" during World War II. It was an alternative twin-jet design proposed as a backup for the Messerschmitt Me 262.
Heinkel HD 43 The Heinkel Doppeldecker 43 was a prototype German fighter aircraft of the 1930s. A single-engined, single-seat biplane, the HD 43 was designed to meet a secret German "Reichswehr" requirement for a single-seat fighter. It had two-bay wooden wings with a steel-tube fuselage, and was powered by a 750 hp (600 kW) BMW VI engine. The single prototype flew in 1931.