USAF RAT‑55 NT‑43A radar test‑bed 737 and WB‑57 rehearse in Artemis II launch airspace
USAF's secretive RAT‑55 (NT‑43A) radar test‑bed 737 has entered a new operational phase after flying under a NASA callsign in airspace reserved for the Artemis II launch. The NT‑43A and a WB‑57 performed rehearsals in restricted launch corridors to support the upcoming mission.