The only model of the North American XB-28 in 6 mm scale. The XB-28 was designed to be a high-altitude medium bomber and a supplement to the company's B-25. The crew compartment was pressurized, which allowed a service ceiling of almost 35,000 feet. Top speed was a very impressive 372 miles per hour. Although a very successful design, the need for a high-altitude medium bomber disappeared and only two copies of the airplane were built.
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