Calbear said:
The 8 rockets of the Typhoon came to 480lb
The RP-3 (from Rocket Projectile 3 inch), was a British rocket used in the Second World War. Though primarily an air-to-ground weapon, it saw limited use in other roles. The use of a 60 lb (27 kg) warhead gave it the alternative name of the "60 lb rocket"; the 25 lb (11.3 kg) solid-shot armour piercing variant being the "25 lb rocket".
http://en.wikipedia.org/wiki/RP-3
But the Tiny Tim was actually only a 150lb warhead.
The Tiny Tim, was an American air to ground rocket used near the end of the Second World War. One source states it was built in response to a US Navy requirement for an anti-shipping rocket capable of hitting ships outside of their anti-aircraft range, with a payload capable of sinking heavy shipping.[1] However, according to the China Lake Weapons Digest,[2] Tiny Tim was
... designed by the CalTech-China Lake team as a bunker-buster, Tim was the first large aircraft rocket, and, although it saw only limited service in WWII, it helped form the foundations of many postwar developments in rocketry.
Tiny Tim had a 150 lb (68 kg) high explosive warhead, and had a maximum range of 1,500 meters (1,640 yards).
http://en.wikipedia.org/wiki/Tiny_Tim_(rocket)
I expect this little known weapon would serve its purpose though.