Ran into this regarding the solid rocket booster used on the B-52H carrier
aircraft to get the drone up to ramjet ignition speed:
"The program called for the use of a solid rocket _which had been
previously qualified and man-rated for the Apollo program._
However, according to Col. Saunders, sometime after the reoriented program
was under way, Kelly Johnson ascertained that the new D-21B configuration
needed more thrust, and as a result the rocket had to be redesigned and
increased in size to accommodate the new requirement."
That's from here:
http://www.foia.cia.gov/docs/DOC_0001474971/0001474971_0002.gif
I always wondered where that booster came from; here's some photos of it:
http://www.wvi.com/~sr71webmaster/d21b001.html

Pat
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The only solid-rocket that i am aware of that woudl meet these requirements
would be the escape tower's solid rocket atop the Apollo Command Module for
the Saturn IB and Saturn V boosters.

I always wondered where that booster came from; here's some photos of
it: http://www.wvi.com/~sr71webmaster/d21b001.html