
This is an aircraft rocket weapon, designed primarily for use against submarines and merchant shipping, although more recently wide use of the rocket has been made against land targets of an unarmored or lightly armored nature. The round consists of a 3-in. aircraft rocket motor and one of the five following heads: Shell, HE, 60 lb, F., No. 1 Mk I; Shell, HE, 60 lb, SAP, No. 1 Mk I (with delay); Shell, HE 60 lb, SAP, No. 2 Mk I (without delay) ; Shot, 25 lb, SAP, Mk I; Shot, 25 lb AP, Mk I; and Shot, 25 lb, AP, Mk II. In addition, two concrete practice heads are also used, one weighing 25 lb, the other 60 lb.
No information about functioning.
OP 1665, British Explosive Ordnance (1946)