The most likely form, the Model 2707-300, showcased a slim, rounded fuselage with a very pointed nosecone at front and traditional single-finned tail unit at the rear. The nosecone would have been hinged to angle down and provide improved viewing for the piloting crew during ground maneuvering, take-off, and landing actions. The wings were of delta-wing configuration with well-swept leading edges and straight trailing edges. Under each wing member, and towards the trailing edge line, would be four podded engine nacelles each housing a single turbojet engine (two engines per wing). A tricycle undercarriage would be fitted for ground-running with the nose leg sporting twin wheels and the main legs given six wheels each (across three bogies) - such was the estimated weight of this massive aircraft.
Power was slated to come from 4 x General Electric GE4/J5P afterburning turbojet engines outputting 63,200lb of thrust each. This would have allowed for cruising speeds of 1,800 miles-per-hour, a range out to 4,250 miles, and a service ceiling of 73,000 feet.
Internally, the Model 2707 was to feature an advanced "glass" cockpit at a time when "steam" guages dominated instrument panels. The operating crew would have been at least three personnel.
Despite advancements in aviation technology, the age of the "supersonic airliner" never materialized to the levels originally envisioned so both the Concorde and Tu-144 saw only limited production numbers (20 and 16 units, respectively) and were restricted in their operational use. There proved too many issues in attempting to get passengers to their destinations in short-order: operating noises, shockwave concerns, excessive fuel burn (a common failing of early turbojets), and limited passenger seating / cargo-hauling capabilities within the slim and narrow fuselage designs. As such, air carriers eventually moved away from the concept of supersonic passenger flight in the subsequent decades and, only recently, has the topic been revisited through several upcoming, in-development designs detailed throughout this site.
Boeing managed to complete a single mock-up of its Model 2707.
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