Falcon-I, Propulsion

Propulsion Falcon-I

Merlin-1A	Merlin-1Ci (Falcon-I)	Merlin-1C (Falcon-Ie)
Merlin-1A	Engine Kestrel	Merlin-1C (Falcon-Ie)

Falcon- I (2006)

Stage	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp.
Stage	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	Merlin -1A	324.7	2488	369.2	2829	21.092	161.6	0.1305	59.7
2	Kestrel			30.5	3109	3.856	395	0.0098	12.0

Falcon- I (2008)

Stage	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp.
Stage	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	Merlin -1Ci	348.7	2594	394.6	2934	21.092	156.9	0.1345	61.9
2	Kestrel-2			30.7	3138	4.037	410	0.0098	12.7

Falcon- Ie (canceled)

Stage	Engines	Thrust s.l.	Isp s.l.	Thrust vac	Isp vac	Propellant	Burn time	Flow rate	Total Imp.
Stage	Engines	kN	N*s/kg	kN	N*s/kg	tons	s	t/s	MN*s
1	Merlin -1C	422.6	2618	482.6	2989	39.463	182.5	0.1615	88.0
2	Kestrel-2			30.7	3138	4.037	410	0.0098	12.7