It would have come in two thrust ratings, 104,000 lbf (460 kN) and 114,000 lbf (510 kN), and has been tested up to 117,000 lbf (520 kN). As Boeing's thrust requirements increased, Rolls-Royce began developing the 115,000 lbf (510 kN) 8115 which was to be an enlarged version of the 8104, with a m (120 in) fan and a core scaled up percent from the 8104. It featured swept-back fan blades and a host of new technologies such as contra-rotating spools. The 8115 was never built, as Boeing signed a contract with General Electric to be the sole supplier of engines for the 777X aircraft, owing to GEs willingness to risk-share on the airframe part of the project, and sales of the aircraft to GECAS .
LessorCare enables lessors to swiftly call upon Rolls-Royce maintenance and/or availability services, normally, but not exclusively, when the aircraft is between operators. Technical data and advice is available to lessors whenever they need it and a wide range of asset management services are available which help lessors to reap the maximum return from their engine investments. A key part of LessorCare is the creation of a dedicated aircraft transitions team within Rolls-Royce who use their market and engine knowledge to proactively and reactively assist with the smooth exit of aircraft from one operator and its placement and service entry with its next operator. LessorCare also helps lessors to maximise the terminal asset value of their engine inventory when they decide to finally withdraw them from service.