See also: Beans, Dried; Beans
Navy beans are a variety of kidney bean, also known as Boston bean and Yankee bean.
Navy Beans are small, white and oval with a refined texture and delicate flavor. These are the beans used for the famous Boston and English baked beans. Because their skin and fine texture do not break up on cooking. These beans were named for their part of the U.S. Navy diet during the second half of the 19th Century.
CDC.gov - 5 a Day
The navy bean is the official Bean of Massachusetts, the Baked Bean State.