
Obsolete.
A safety wire is withdrawn when the bomb is loaded aboard the plane, and the vanes are freed when the bomb is released. The vanes and vane cap rotate off, and on impact a shear wire is sheared, and the striker hits the detonator.
No information about functioning.
No information about hazardous components.
Nothing else to see.
OP 1665, British Explosive Ordnance (1946)