A B-25D Mitchell Bomber from the Historic Flight Foundation named “Grumpy” taxis down the flightline to prepare for take off at Ellsworth Air Force Base, S.D., April 20, 2012. The visit to Ellsworth was a part of its return journey to Snohomish County Airport north of Seattle, Wash., from the final Doolittle Raider reunion event held at the National Museum of the U.S. Air Force in Ohio. “Grumpy” is one of the oldest flying B-25s in the world, and most closely resembles the variant of the 16 bombers flown by Lt. Col. James Doolittle and his crews. (U.S. Air force photo by Airman 1st class Zachary Hada/Released)