US Air Force Rock Band performing June 26 Published June 17, 2014 28th Bomb Wing Public Affairs ELLSWORTH AIR FORCE BASE, S.D. -- The U.S. Air Force premier rock band Max Impact, will be performing at Main Street Square in Rapid City June 26 at 9 p.m. The free concert will feature many popular songs along with patriotic classics honoring our nation and its heroes. For more information, contact 28th Bomb Wing Public Affairs at (605) 385-5056.