barr and stroud height and rance finder 2m74 (9-ft.) base, type U.B.2A. on mounting type m.h. A.A. predictor equipment gun junction box A.A. Predictor equipment main junction box Training receiver for Vickers anti-aircraft fire control gear Elevation receiver for Vickers anti-aircraft fire control gear Vickers anti-aircraft fire control gear : general considerations Vickers anti-aircraft fire control gear : general description, [according to] drawing no. 14036D