B-70 with SST GE4 engines

[Archibald]

It was proposed to put one GE4 in place of 2*J93s inside a Valkyrie engine bay.

Now for the fun of it - how about going 100% GE4 on a B-70 ?
Simple maths...
6*J93 = 6*13 = 78 tons of thrust
6*GE4 = 6*28 = 168 tons of thrust
4*GE4 = 4*28 = 112 tons of thrust
4 non afterburning GE4 = 4*22 = 88 tons

So how about a Valkyrie with 4 non AB GE4 ? this smells "supercruise" but could it still hit Mach 3 ?
Otherwise put AB only on two out of four GE4... should be enough !

Hell of a terrific engine and aircraft !

 

[Foo Fighter]

Sounds good, any cheaper to build? Operate?

 

[Archibald]

Not as a bomber, obviously, for well known reasons. Rather, as an experimental aircraft. Wouldn't be too much of stretch...
- J93 and GE4 were related
- it was proposed to remove two J93 to make room for a single GE4

On a strict thrust basis, it would only need THREE GE4 with reheat, or four non-afterburning ones.

I think non-after burning GE4s make more sense. Could it supercruise ? It would save enormous amounts of fuel, trading 6-AB for 4-non-AB turbojets... also some internal space.

Reminds me of Concorde-B no longer needing afterburners on its upgraded Olympus engines.

 

[Orionblamblam]

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