BMW Rolls-Royce is embarking on a weight-reduction programme for its BR715 engine, which is 45kg overweight. The company says that it will transfer the results of a similar programme for the smaller BR710, which trimmed off 35kg, to the new powerplant, and consultations are being held with suppliers to examine possible further weight cuts. Three out of seven test engines have been completed, and are undergoing altitude and crosswind studies. BMW R-R is aiming for certification in the third quarter of 1998, with first flight on a Boeing MD-95 in June 1999.
Source: Flight International
