Rolls and GE are also competing on the closely linked Highly Efficient Embedded Turbine Engine (Heete) program, which is demonstrating extreme high-pressure-ratio core technology aimed at lowering fuel burn by up to 35% compared to current engines. Geared more toward future mobility, reconnaissance and transport platforms, Heete is an adjunct to Advent and part of the Air Force’s Versatile Affordable Advanced Turbine Engine program. “We have a compressor rig which will be tested this year, and we will get data from that this year,” Wilson says.