CZ-3, Propulsion

Propulsion CZ-3, CZ-3A CZ-3B, CZ-3C

Booster	Stage 1		Stage 2	+Verniers (4)	(YF=Yeiti Fadong)	Launcher
	4 x YF-20A	= YF-21A	YF-22A	YF-23	= YF-24A	CZ-3
	4 x YF-20B	= YF-21B	YF-22B	YF-23B	= YF-24B	CZ-3+, CZ-3A
	4 x YF-20C	= YF-21C	YF-22E ( l.n.)	YF-23B	= YF-24D	CZ-3A+
	4 x YF-20C	= YF-21C	YF-22E ( l.n.)	YF-23F	= YF-24E	CZ-3A+

YF-20B	4 x YF-20B	= YF-21B	YF-22B	YF-23B	= YF-24B	CZ-3B
YF-20C	4 x YF-20C	= YF-21C	YF-22E ( l.n.)	YF-23B	= YF-24D	CZ-3BE, CZ-3C
YF-20C	4 x YF-20C	= YF-21C	YF-22E ( l.n.)	YF-23F	= YF-24E	CZ-3BE, CZ-3CE
DaFY-5-1	DaFY-6-2		DaFY-20-1	DaFY-21-1		another term for engines

YF-21	YF-24B	YF-24D
YF-73
YF-75

CZ-3	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	YF-21A	2,804.0	2557	3,020.3	2754	134.0	127.6	1.0968	385.4
2	YF-24A			719.8	2834	34.99	129.3	0.2540	99.0
2	YF-23 (4)			44.1	2756	34.99	134	0.0160	99.0
3	YF-73 (4)			44.15	4119	8.65	810	0.0107	35.6

CZ-3+	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3+	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	YF-21B	2,961.6	2557	3,190.0	2754	142.0	122.6	1.1584	391.1
2	YF-24B			742.4	2922	34.93	128.5	0.2540	101.7
2	YF-23B (4)			46.1	2762	34.93	137	0.0167	101.7
3	YF-73+ (4)			44.43	4168	8.50	795	0.0107	35.4

CZ-3A	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3A	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	YF-21B	2,961.6	2557	3,190.0	2754	169.0	145.9	1.1584	465.4
2	YF-24B			742.4	2922	29.70	109.5	0.2540	85.5
2	YF-23B (4)			46.1	2762	29.70	114	0.0167	85.5
3	YF-75 (2)			156.9	4295	17.54	480	0.0365	75.3

CZ-3A+	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3A+	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	YF-21C	2,992.8	2557	3,223.4	2754	174.8	149.3	1.1706	481.3
2	YF-24D l.n.			784.5	2971	35.10	110	0.2640	91.7
2	YF-23B (4)			46.1	2762	35.10	115	0.0162	91.7
3	YF-75 (2)			156.9	4295	17.54	480	0.0365	75.3

CZ-3B	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3B	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
Booster (1)	YF-20B	740.4	2557	797.5	2754	36.84	127.2	0.2896	101.4
1	YF-21B	2,961.6	2557	3,190.0	2754	171.79	148.3	1.1584	473.0
2	YF-24B			742.4	2922	49.12	180.6	0.2540	143.3
2	YF-23B (4)			46.1	2762	49.12	200	0.0167	143.3
3	YF-75 (2)			156.9	4295	18.27	500	0.0365	78.4

CZ-3B+	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3B+	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
Booster (1)	YF-20C	748.2	2557	805.8	2754	40.72	139.1	0.2926	112.1
1	YF-21C	2,992.8	2556	3,223.4	2754	171,79	146.7	1.1706	473.0
2	YF-24D l.n.			784.5	2971	49.60	175.6	0.2640	147.2
2	YF-23B (4)			46.1	2762	49.60	200	0.0162	147.2
3	YF-75 (2)			156.9	4295	18.27	500	0.0365	78.4

CZ-3C	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3C	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
Booster (1)	YF-20C	748.2	2557	805.8	2754	36.49	124.7	0.2926	101.0
1	YF-21C	2,992.8	2556	3,223.4	2754	176.43	150.7	1.1706	485.8
2	YF-24D l.n.			784.5	2971	49.60	175.6	0.2640	147.2
2	YF-23B (4)			46.1	2762	49.60	200	0.0162	147.2
3	YF-75 (2)			156.9	4295	18.27	500	0.0365	78.4

CZ-3BE	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3BE	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
Booster (1)	YF-20C	748.2	2557	805.8	2754	44.57	152.3	0.2926	122.7
1	YF-21C	2,992.8	2557	3,223.4	2754	186.27	159.1	1.1706	512.9
2	YF-24E l.n.			742.4	2922	49.60	175.6	0.2540	147.2
2	YF-23F (4)			47.2	2911	49.60	200	0.0167	147.2
3	YF-75 (2)			156.9	4295	18.27	500	0.0365	78.4

CZ-3CE	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
CZ-3CE	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
Booster (1)	YF-20C	748.2	2557	805.8	2754	44.57	152.3	0.2926	122.7
1	YF-21C	2,992.8	2556	3,223.4	2754	186.27	159.1	1.1704	512.9
2	YF-24E l.n.			784.5	2971	49.60	175.6	0.2640	147.2
2	YF-23F (4)			47.2	2911	49.60	200	0.0162	147.2
3	YF-75 (2)			156.9	4295	18.27	500	0.0365	78.4