Mast (botany) some domestic animals consume. Mast is found in two forms. Mast is generated in large quantities during mast seeding events (or masting, mast events). Mast seeding is a population-level phenomenon that is hypothesized to be driven by economies of scale, weather, and resources. These pulses of resources drive ecosystem-level functions and dynamics. Tree species such as oak, hickory, and beech produce a hard mast—acorns, hickory nuts, and beechnuts. It has been traditional to turn pigs loose into forests to fatten on this form of mast. Other tree and shrub species produce a soft mast, such as raspberries, blueberries, and greenbriar.
Walter Beech Stearman, and Clyde Cessna formed Travel Air Manufacturing Company. When the company merged with Curtiss-Wright, Beech became vice-president. In 1932, he and his wife, Olive Ann Beech, along with Ted Wells, K.K. Shaul, and investor C.G. Yankey, co-founded the Beech Aircraft Company in Wichita, Kansas. Their early Beechcraft planes won the Bendix Trophy. During World War II, Beech Aircraft produced more than 7,400 military aircraft. The twin Beech AT-7/C-45 trained more than 90 percent of the U.S. Army Air Forces navigator/bombardiers and 50 percent of its multi-engine pilots. Beech died from a heart attack on November 29, 1950. He and