“I did read your post, but I dont believe the missile pictured is a scram jet type, look at the intake: you honestly think an orifice that small is going to receive enough air to force feed a scram jet that small?”
Yes. The scramjet design doesn’t require a dramatically larger inlet, as it doesn’t have a compressor up front. The air is compressed enough by the speed of the missile and the configuration of the nose cone. The nose cone of that missile is not a standard jet engine, it is an adjustable pressure/flow design similar to what the SR-71 used, which is a type of hybrid scramjet.
The only technology that exists today (AFAIK) to achieve these kind of missile speeds for extended time is with either rockets or ramjets.
The other reason I say it is a ramjet is that it’s based on the existing P-800 Oniks cruise missile design, which can fly at Mach 2.8 and utilizes a scramjet engine. Check out this pic:
http://en.wikipedia.org/wiki/P-800_Oniks.
As for the boost phase to get it to Mach 5, I’m not sure what they would be using to do that. Some of the experimental designs have used rocket assist to get them up to speed.
The initial picture is of the existing Brahmos missile-it’s a ramjet based weapon (evolved from the P-800) and in service with the Indian navy.