Also ICI.

Motor sostenedor a propelente sólido del “Thunderbird I” (impulsores Bristol-Aerojet).

Solid propellant holder engine "Thunderbird I" (Bristol-Aerojet impellers).

-IMI "Troy" is the solid rocket engine that is used by the Rapier missiles.

The Seacat missile engine is from IMI as well.

-IMI, together with Sperry, built the Kumar rocket engines. They delivered 3,600 Kgf of thrust.