Rolls-Royce AE 3007H, also designated F-137 in U.S. Air Force Global Hawk support records, is a high-bypass, two-shaft turbofan variant of the AE 3007 family. Rolls-Royce places the family in the 8,000-lbf thrust class and identifies a single AE 3007H on the RQ-4A Global Hawk and Triton; NATO specifies 7,600 lbf (33.8 kN) for the RQ-4D Phoenix installation. This row preserves its canonical AE 3007 family link and exact Global Hawk/RQ-4D installations.