Delta-I, Propulsion

Propulsion Delta-I

Castor II

MB-3 engine

Booster

Versions	Engines	Thrust s.l.		Isp s.l.	Thrust vac		Isp vac	Propellant	Burn time	Combustion		Total Imp
		kN		N*s/kg	kN		N*s/kg	tons	s	t/s		MN*s
1000, 2000	Castor II (TX-354)	max	189.1	1692	max	274.9	2460	3.728	40	max	0.1118	9.17
		min	157.7		min	229.2				min	0.0932
3000	Castor IV (TX-526)	max	407.2	2250	max	459.3	2538	9.394	56	max	0.1810	23.84
		min	377.5		min	425.9				min	0.1678
4000, 5000	Castor IVA (TX-780)	max	476.0	2332	max	536.0	2626	10.109	55.2	max	0.2041	26.55
		min	442.4		min	498.3				min	0.1897

Stage 1

Versions	Engines	Tank	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
Versions	Engines		kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1000, 4000	MB-3-III	ELTT	756.2	2456	858.5	2784	81.42	260.5	0.3080	226.5
2000, 3000, 5000	RS-27	ELTT	911.3	2579	1016.4	2873	81.42	227.4	0.3536	233.5
all versions	2 Verniers LR-101		8.9	1952	11.1	2442			0.0046

TR-201

AJ-10-118K

Stage 2

Versions	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp
Versions	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1000, 2000, 3000	TR-201			43.9	2927	4.586	305.8	0.0150	13.4
3000, 4000, 5000	AJ-10-118K			43.4	3143	6.004	435	0.0138	18.87

Upper stage

Versions	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Combustion	Total Imp
Versions	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1000, 2000, 3000	Star-37D (TE-M-364-3)			42.28	2846	0.653	44.0	0.0148	1.86
1000, 2000, 3000	Star-37E (TE-M-364-4)			66.72	2802	1.039	43.6	0.0238	2.91
3000, 4000, 5000	Star-48B (TE-M-711-18)			68.64	2885	2.010	84.5	0.0238	5.80