Only two German production aircraft used the 003. The first was the Heinkel He 162A "Spatz" (since the "Volksjäger" light fighter design competition mandated its use), with the "Spatz" utilizing an 003E version, designed to possess ventral mounting points to allow it to be mounted atop the fuselage of an aircraft. The other was the four-engined Arado Ar 234C reconnaissance-bomber variants, which were designed to use what was supposed to be the "more available" engine, despite its primary allocation for the He 162A.