28th BW to conduct pre-season motorcycle briefing Published March 7, 2016 By Airman Donald Knechtel 28th Bomb Wing Public Affairs ELLSWORTH AIR FORCE BASE, S.D. -- The 28th Bomb Wing will conduct two upcoming annual pre-season motorcycle briefings in accordance with Air Force Instruction 91-207, "The US Air Force Traffic Safety Program," March 24 and April 7. The Green Knights and Dakota Thunder Military Motorcycle Club will hold two mass briefings from 8 to 10 a.m. at the Deployment Center Auditorium, and all riders are highly encouraged to attend. For more information, call Staff Sgt. Kenneth Hill, 28th BW occupational safety technician, at (605) 385-7233, or Master Sgt. James Blair, 28th BW unit safety representative, at (605) 385-6167.