Heinrich Himmler became interested in Bachem's design. The "Reichsführer-SS" granted Bachem an interview and fully supported the project. In the middle of September 1944 the Technical Office of the "Waffen-SS" made an order for Bachem to develop and manufacture the Natter at his Waldsee factory. In December 1944 the project came largely under the control of the SS and Hans Kammler. This decision is said to have been the only time the SS significantly interfered with aircraft design and air fighting strategy. Early-on in the project, the "Reichsluftfahrtministerium" ("RLM") undertook an engineering assessment of the Natter, which it reported on 28 October 1944.