Airmen Mark Heitkamp pulls a fuel service hose from an R-11 fuel truck. U.S. Air Force Airmen Mark Heitkamp pulls a fuel service hose from an R-11 fuel truck in preparation for refueling a KC-135 Stratotanker aircraft with JP-8 fuel at an air base in Southwest Asia on May 31, 2006. Heitkamp is a fuels distribution operator with 379th Expeditionary Logistics Readiness Squadron. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 443066-N-SGO53-617.jpg Photo Gallery