Safir IRILV, Propulsion

Propulsion Safir IRILV

Upgraded Nodong engine

Injector plate

LRE-4

Second stage engines with nozzle extension (area ratio ~9+7)

Single second stage engine without nozzle extension (area ratio ~9)

Cold gas propulsion system for satellites

Safir-1	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
Safir-1	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	Nodong (1)	284.4	2422	313.2	2667	18.20	155	0.1174	48.6
2	LRE-4 (2)			34.1	2736	3.05	245	0.0124	8.3

Safir-1A & 1B	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
Safir-1A & 1B	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	Nodong+ (1)	298.2	2540	325.8	2775	18.20	155	0.1174	50.5
2	LRE-4+ (2)			35.4	2844	3.05	245	0.0124	8.7

Safir-1B+	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
Safir-1B+	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	Nodong++ (1)	333.6	2658	363.1	2893	18.20	145	0.1255	52.6
2	LRE-4+ (2)			35.4	2844	3.05	245	0.0124	8.7