"Sharing the Word" during chapel services Published Nov. 6, 2011 GRISSOM AIR RESERVE BASE, Ind., -- The 434th Air Refueling Wing chaplain's office hosts chapel services on Sundays of each primary unit training assembly. Protestant services are held at 11 a.m. on Sundays of the primary unit training assembly, and Catholic services held at 12:15 p.m. The 434th ARW is the largest KC-135R Stratotanker unit in the Air Force Reserve Command. Stay connected, visit Grissom on Facebook and Twitter.