Feb 112019
The San Diego Air and Space Museums Flickr account recently added this illustration, showing a Convair “Big Stick” being launched off the back of mobile transporter. “Big Stick” was a Convair concept for a nuclear ramjet powered cruise missile of nearly unlimited range, a less-known competing design against Voughts Pluto vehicle.
A higher rez (though, sadly, not a whole lot higher) version is available HERE.
If you are interested in Big Stick and Project Pluto, I recommend Aerospace Projects Review issue V2N1, which covers both in detail.