And when I thought I had scrouged all DTIC/NASA PDFs, I find a nice B2707 (-100 ?) "Aerodynamic Development Model" , with 3 fins (!) and blended wing and fuselage :
From Document AD0804723 , page 58, :
From Document AD0804723 , page 58, :
DTIC AD0804723: SUPERSONIC TRANSPORT DEVELOPMENT PROGRAM. PHASE 3 PROPOSAL. BOEING MODEL 2707. VOLUME 2-3. AERODYNAMIC DESIGN REPORT : Defense Technical Information Center : Free Download, Borrow, and Streaming : Internet Archive
Contents: Summary; Performance; Performance Substantiation; Stability and Control; and Flight Controls and Stability Augmentation System.
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