Not a good video – you get a view of the scale model that the mock-up was based on and the rest is footage of the F105 Thunder Chief – which consisted of 1 B52 engine – fuel tanks – and wings – and not a whole lot more . . .
There were several scale model kits made over the years . . .
Here is a drawing depicting some of the engine ducting . . .
Had it been built the xf-103 would have been interesting to say the least – take off and run up to mach 1 plus then switch over to a ramjet – one Hell of a ride – that never made it past the mock up stage . . .
Have Fun! – Run the Gun! – and remember Fish Heads are Cheap!