733-101
This is the first proposal for Boeing's variable swept wing SST. This plan was created based on research on TFX (F111) and arrow wings, which Boeing Co. and NASA conducted.
733-204
During Phase I, Boeing considered how far a good SST could be made using fixed delta wing. As a result of the examination, the proposal 733-204 satisfied the target value in the payload and cruising range, but the low speed performance did not satisfy the target value.
From 733-197 to 733-290
SCAT15F advanced aerodynamic design was used to improve from 733-197 to 733-290.
SCAT15F
NASA continued research on fixed arrow wings the SCAT15F proposal.
SCAT15F
Boeing reassessed NASA's SCAT15F proposal. The payload and cruising range were excellent, but the low speed performance was poor and the development risk was large, so it was concluded that this scheme was disadvantageous.
733-467
Boeing reexamined various SST configurations because the 733-290 type wing-tail separation type variable swept wing plan got stuck due to exhaust and tail interference problems. As a result, the draft 733-290 was integrated with the good part of SCAT15 to create the draft 733-467.
B2707-200
Boeing has proceeded with design studies such as B2707, B2707-100, and B2707-200, and solved problems such as steering stability. However, the weight increased and the cruising performance could not satisfy the required value.
SAT15F
Boeing added a horizontal tail to improve the vertical maneuverability of the SCAT15F to the standard value.
962-302
The delta wing with tail wing, 969-302, has the best payload and cruising performance because it can reduce its own weight. Since the wing span was large and the swept angle was small, the low speed performance was good.
969-404
The 969-404 proposal for the separate tail and wing variable swept wing has the best landing performance. However, there is a large risk of interference between the tail and exhaust, and it is structurally complex.
969-320
The 969-320 proposal based on SCAT15 could have the best payload and range, but the low speed performance was the worst. In addition, there was a significant decrease in handling stability due to aircraft deflection. Boeing, however, continued to consider the 969-320 proposal as a baseline for aerodynamic technology, including solutions for low-speed performance.
B2707-300
Boeing compared the 969-302, 969-320, and 969-402 plans, and selected the B2707-300 as the basic form of SST trial production.
Excellent 2707-300 pictures here.
several pictures from aircraft design, my master and bachelor thesis... - by Miroslav Dorotcin
www.coroflot.com