NASHVILLE, TN -- Ongoing funding instability is hurting critical modernization efforts for Army aviation, a service official said at an annual gathering here hosted by the Army Aviation Association of America. Maj. Gen. Bob Marion, deputy for acquisition and systems management in the office of the Army acquisition executive, said that, in the absence of a fiscal year 2017 appropriation, key initiatives such as the Improved Turbine Engine Program and Future Vertical Lift face work stoppages and funding shortfalls, respectively...