Dr. Konrad and his collaborators of the DVK (German Aviation Establishment for Experimental Propulsion) (see DVK).

-They designed take-off rocket engines for devices such as the Henschel Hs-117 “Schemeterling” series based on fuels such as the S-toff and Visol.

-In the tests the Schmidding 109-533 base Dyglicol engines  were used for takeoff boosters and as RATO, which we see above and below the missile.

“Hs-117”

-Apart from the Konrad other main engines were used such as the Walter 210B running on SV-Stoff = nitric acid and Br-Stoff = low octane oil, the BMW 109-558 and the Walter 109-729.

“Rheintochter”

-Dr. Konrad also designed the engines used in the Rheinmetall-Borsig "Rheintochter", used in the R-I and R-III models. They ran on Visol and SV-Stoff.

-The combustion chamber was fueled by nitrogen under pressure.

-The Messerschmitt factory also made a missile designed by H. Würster and G. Madelung. This is the "Enzian" to be launched against allied bomber formations. It was radio guided.

“Enzian on ramp”

-The Enzian were launched from a ramp with solid rocket engines like the Walter Ri-202, which we see attached to his body.

-The Enzian E-4 model mounted a Konrad-DVK with 2,000 Kgf of thrust and using Visol and SV-Stoff. The E-5 model was powered by the same engine running on Br-Stoff and SV-Stoff raising the thrust to 2,500 Kgf.

-The fuel supply was by means of pressurizing the tanks with nitrogen instead of compressed air when Walter engines were mounted.