long range cruise speed definition
9th Aug 2006, 15:18. Long Range Cruise (LRC) speed is calculated as a speed faster than Maximum Range Cruise (MRC) speed that has 1% worse range performance than MRC. Your airplane will exhibit better speed stability flying at LRC rather than MRC.This is the reasoning behind the LRC definition.th Aug 2006, 15:18. Long Range Cruise (LRC) speed is calculated as a speed faster than Maximum Range Cruise (MRC) speed that has 1% worse range performance than MRC. Your airplane will exhibit better speed stability flying at LRC rather than MRC.