Preliminary TCDL testing conducted at Dugway Proving Ground was a success. This led to an estimated fielding date of May 2010 for TCDL. In March 2015, the first Shadow unit was equipped with the upgraded RQ-7BV2 Shadow version. New capabilities for the BV2 include the TCDL, encryption of video and control data-links, software that allows interoperability between other UAS platforms, integration of a common control station and control terminal for all Army UAS platforms, an electronic fuel-injection engine, and increased endurance to nine hours through a lengthened wingspan of , with weight increased to . Shadow systems are being upgraded at a rate of 2-3 per month, with all Army Shadows planned to become BV2s by 2019.