CZ-1 (Chang Zheng), Propulsion

Propulsion CZ-1 & CZ-1D

The Chinese engine YF-2 is a cluster of four single engines YF-1	Photo: S.Grahn. Sweden Engine YF-3
YF-1 turbopump	Single engine YF-40

CZ-1B	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-1B	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	YF-2A (4)	1,019.9	2349	1,131.7	2606	60.79	140.0	0.4342	158.4
2	YF-3			294.2	2746	12.38	115.6	0.1071	34.0
3	FG-02			118.0	2491	1.806	38	0.0474	4.48

CZ-1C	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-1C	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	YF-2B (4)	1,101.2	2378	1,214.4	2622	60.90	131.5	0.4631	159.7
2	YF-3A			320.2	2814	12.38	108.8	0.1138	34.8
3	FG-02			118.0	2491	1.806	38	0.0474	4.48

CZ-1D	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-1D	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	YF-2B (4)	1,101.2	2378	1,214.4	2622	60.90	131.5	0.4631	159.7
2	YF-40 (2)			98.1	2893	12.38	365	0.0339	35.8
3	FG-36			44.6	2834	0.645	41	0.0157	1.83

Solid kick motor FG-02

FG-36