Heinrich Prinz zu Sayn-Wittgenstein (14 August 1916 – 21 January 1944) was a German night fighter pilot and flying ace during World War II.
 An ace is a military aviator credited with shooting down five or more enemy aircraft in aerial combat.
 At the time of his death, Sayn-Wittgenstein was the highest-scoring night fighter pilot in the "Luftwaffe" and still the third highest by the end of World War II, with 83 aerial victories to his credit.
The Focke-Wulf Ta 400 was a large six-engined heavy bomber design developed in Nazi Germany in 1943 by Focke-Wulf as a serious contender for the Amerika Bomber project.
 One of the first aircraft to be developed from components from multiple countries, it was also one of the most advanced Focke-Wulf designs of World War II, though it never progressed beyond a wind tunnel model.
The Focke-Wulf Ta 153 (GH+KV) was a prototype German fighter aircraft built during World War II.
 It was a development of the Fw 190C, a Fw 190A with a DB 603A engine.
The Focke-Wulf Fw 190 "Würger" (English: Shrike ) is a German single-seat, single-engine fighter aircraft designed by Kurt Tank in the late 1930s and widely used during World War II.
 Along with its well-known counterpart, the Messerschmitt Bf 109, the Focke-Wulf 190 Würger became the backbone of the Luftwaffe's "Jagdwaffe" (Fighter Force).
 The twin-row BMW 801 radial engine that powered most operational versions enabled the Fw 190 to lift larger loads than the Bf 109, allowing its use as a day fighter, fighter-bomber, ground-attack aircraft and, to a lesser degree, night fighter.
The Focke-Wulf Ta 254 was a proposed German development of the Ta 154 fighter, to have been produced by Focke-Wulf.
Hans Multhopp (17 May 1913 – 30 October 1972) was a German aeronautical engineer/designer.
 Receiving a degree from the University of Göttingen, Multhopp worked with the famous designer Kurt Tank at the Focke-Wulf Flugzeugbau AG during World War II, and was the leader of the team responsible for the design of the Focke-Wulf Ta 183 lightweight jet fighter, which was the winner of the 1945 Emergency Fighter Competition.
 Emigrating to the United Kingdom after the war, he assisted in the advancement of British aeronautic science before moving to the United States, where his work for Martin Marietta on lifting bodies provided aerodynamic experience that proved instrumental in the development of the Space Shuttle.
Kurt Waldemar Tank (24 February 1898 – 5 June 1983) was a German aeronautical engineer and test pilot who led the design department at Focke-Wulf from 1931 to 1945.
 He was responsible for the creation of several important Luftwaffe aircraft of World War II, including the Fw 190 fighter aircraft, the Ta 152 fighter-interceptor and the Fw 200 Condor airliner.
 After the war, Tank spent two decades designing aircraft abroad, working first in Argentina and then in India, before returning to Germany in the late 1960s to work as a consultant for Messerschmitt-Bölkow-Blohm (MBB).
The Focke-Wulf Ta 154 "Moskito" was a fast twin-engined German night fighter aircraft designed by Kurt Tank and produced by Focke-Wulf during late World War II.
 Only a few were produced, proving to have less impressive performance than the prototypes.
The Focke-Wulf Ta 183 "Huckebein" was a design for a jet-powered fighter aircraft intended as the successor to the Messerschmitt Me 262 and other day fighters in Luftwaffe service during World War II.
 It was developed only to the extent of wind tunnel models when the war ended, but the basic design was further developed postwar in Argentina as the FMA IAe 33 Pulqui II.
 The name "Huckebein" is a reference to a trouble-making raven ("Hans Huckebein der Unglücksrabe") from an illustrated story in 1867 by Wilhelm Busch.
The FMA IAe 33 Pulqui II (in the indigenous language Mapuche, "Pulqúi": Arrow) was a jet fighter aircraft designed by Kurt Tank in the late 1940s in Argentina, under the Perón government, and built by the "Fábrica Militar de Aviones" (FMA).
 Embodying many of the design elements of the wartime Focke-Wulf Ta 183, an unrealized fighter project, the FMA envisioned the IAe 33 Pulqui II as a successor to the postwar Gloster Meteor F4 in service with the "Fuerza Aérea Argentina".
 The Pulqui II's development was comparatively problematic and lengthy, with two of the four prototypes being lost in fatal crashes.
 Despite one of the prototypes being successfully tested in combat during the "Revolución Libertadora", the political, economic and technical challenges faced by the project meant that the IAe 33 was unable to reach its full potential, and the Argentine government ultimately chose to purchase F-86 Sabres from the United States in lieu of continuing development of the indigenous fighter to production status.

Question: The Focke-Wulf Ta 154 "Moskito" was a fast twin-engined German night fighter aircraft designed by an engineer born in which year ?
Answer: 1898