"Keith Willshaw" wrote...

A ramjet on the other hand could give better range and be less visible
in IR which may well be why the Meteor AAM is being designed round
one. Note though that Meteor has an active radar guidance system.

One problem with ramjets in the past has been the high initial velocity
(supersonic, or near so) required for ignition. Has any progress been made in
low-speed ignition?

IIRC, the V-2 had a "pulse ramjet" engine, which gave it the characteristic
sound and its "buzz bomb" moniker. I don't know if that would be suitable for
AAM use.