The Air Craft Marine Engineering Co was a four place cabin, mid-wing monoplane amphibian twin-jet prototype fighter was reported under construction in 1958, but never completed. Assigned RS-695B project number by the Army Air Forces Air Materiel Command. "Anser" was acronymic for "Analytical Service Inc," involved in the project to an unknown degree. The COIN fighter selected at the time was North American OV-10A.