"The Typhoon, world's fastest fighter in service with the RAF. Pictures have now been released of the RAF 's new fighter, the Typhoon. Its speed is still a secret, but it is without doubt the fastest fighter in the world. It is also the world's strangest and most powerfully armed single engined fighter, capable of blasting any enemy fighter out of the air. It has terrific diving power and can manoeuvre to match anything the Nazis can put in the air today. Picture shows: - Mechanics at work on a Typhoon glance at another flying past at high speed."
The preceding text is the offical war-time caption. I think it needs to be taken with a grain of salt these days.