“Lone Ranger” – The XPBB-1



The XPBB-1 “Sea Ranger” was Boeing’s effort at fulfilling the Navy’s need for a better long-range flying boat. Such aircraft are always a battle between aero and hydro dynamic engineers, but the XPBB was a remarkably streamlined and efficient design. Internal bomb bays with sliding doors were incorporated into the wing were one such aerodynamic feature.

First flown on July 7, 1942, the XPBB proved a winner from the start and seemed to have a bright future, but…other forces were at work. Despite the Navy’s satisfaction with the project, Boeing’s talents (and factories) were needed for the B-29 program. This was given priority, and, with only one example built, The XPBB project was cancelled. The B-29 program, coupled with the Navy’s growing lack of enthusiasm for the future of large flying boats, caused the one and only XPBB-1 Sea Ranger to became known as the “Lone Ranger”.

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