Boeing Sonic Cruiser

The Sonic Cruiser design was about the size of the 767 with seating for approximately 250 passengers. The airframe featured an aft-mounted double-delta wing with very large, thick root extensions to provide significant fuel volume. Canard surfaces mounted near the nose would provide pitch control. This arrangement had the advantage of providing a large, constant diameter fuselage in between the canards and wing to maximize the size of the passenger compartment and provide space for fuselage inserts in future stretch models. Engine pods installed along the wing trailing edge were partially blended into the wings to reduce drag. Plans called for fitting engines derived from those used on the 777.