Photograph of (from left to right) Manning Butterworth, Brent Norlem, Bill Simon, and Vern Estes at the Estes Industries wind tunnel display during Fourth National Association of Rocketry Annual Meet (NARAM-4), United States Air Force Academy,…
Film footage of Estes model rocket engine demonstration, circa 1950s-1960s. The footage features several clips from multiple angles, some in slow-motion, demonstrating the thrust capabilities of Estes-brand model rocket engines. National Association…