RB199 Engine

Performance data		Current production engines
uninstalled, ISA, SLS		Mk 103	M k104	Mk 105
Thrust - maximum dry	kN	40.5	40.5	42.5
	lb	9100	9100	9550
Thrust - with reheat	kN	71.2	73.0	74.3
	lb	16000	16400	16700
Air mass flow	kg/s	72.6	72.6	75.3
	lb/s	160	160	166
Bypass ratio		1.08	1.08	0.97
Dry sfc	mg/Ns	18.38	18.38	18.41
Installation data
Overall lenghth	m	3.25	3.61	3.30
	in	128	142	130
Intake diameter	m	0.72	0.72	0.75
	in	28.3	28.3	29.6
Typical engine weight	kg	915	975	990
	lb	2017	2151	5186