The 34th Tactical Airlift Training Group (TATG) at Little Rock AFB provides initial and tactical mission qualification training to C-130 crewmembers. One of the new features of the newly delivered simulators is the inclusion of Stationkeeping Equipment (SKE). A complex set of procedures for proper utilization of SKE during formation airdrops forms a large portion of the tactical mission qualification training course. The Training Programs Branch of the 34 TATG conducted a study to explore the application of the IFS to pilot and navigator training. The study was conducted using four test classes. After a standard academic course, classes of pilots and navigators were divided into test and control groups. The test groups were trained using a pre-designed simulator syllabus and their performance was measured in the aircraft. The control groups received their training only in the aircraft before completing the same performance measurement. The study results in terms of subjective and objective data showed that the IFS could reasonably support a training effectiveness ratio of approximately 0.5. The best training strategy appears to be an integration of IFS missions among flying missions and ground training rather than in one block. We recommend inclusion of the IFS in mission qualification training. We also recommend a re-evaluation of the mechanics of the proficiency advancement concept.