The Valiant definately didn't have a chute. The Victor and the Vulcan has the same 45' diameter chute - the largest chute in regular use anywhere in the world. The Vulcan didn't use it much as it has a fairly low landing speed and could use aerodynamic braking. The Victor had to use it on nearly every landing as it had a higher apporach speed and brakes from a Ford Cortina. Landing without streaming was a big deal and required a landing distance available of over 9000', a headwind and a dry runway, and had to be specailly authorised.
The chute weighed 165lbs and was a b@stard to reload. It had a weak link which was designed to break at over 180 knots, so it's use in the air as a stall recovery aid would have been very limited.