Revision as of 00:53, 22 October 2012

A three-stage rocket featuring each of the default parts as of 0.8.5

This page lists the rocket parts that are included with the latest paid version of Kerbal Space Program, currently 0.17. These parts are also called vanilla parts, default parts, and stock parts.

For a list of all the parts available in the demo version of Kerbal Space Program, look at the demo parts page.

The game separates parts into seven categories for use within the Space Plane Hanger and the Vehicle Assembly Building, though two of these categories are currently unused. The five that can be selected from are Command Pods, Propulsion, Command & Control, Structural & Aerodynamic and Utility & Scientific.

Units of measure

While units of mass and thrust are not specifically labeled in-game, a bit of logic can quickly determine that thrust is measured in kilonewtons (kN) and mass in metric tons (t). For example, if measured in kilograms(kg), a "9 kg" Rockomax X200-16 Fuel Tank on Kerbin, having a surface gravity of 9.81 m/s2, would be roughly the size of a 48 oz coffee tin and only hold about 1.5 L of fuel. If measured in metric tons, a 9 t Rockomax X200-16 Fuel Tank under the same gravity would be about 0.67 m tall and 2 m in diameter, easily capable of holding the advertised 1600 L of fuel. Only a rocket engine with a thrust around 100 kN could have any chance to lift a 9 t fuel tank.

Thrust to weight ratio at sea level on Kerbin is calculated by the following equation, which applies only to liquid or solid fuel rocket engines, jet engines use a complicated formula on a vehicle to vehicle basis.

{\frac {T}{W}}={\frac {T\ \mathrm {kN} }{(m\ \mathrm {t} )(g_{\rm {0}})(1000)}}

where:

T

is the thrust is the thrust obtained from the engine, in kilonewtons.

W

is the weight of the engine at sea level on Kerbin's surface.

m

is the mass of the engine in metric tons (t).

g_{\rm {0}}

is the acceleration at sea level on Kerbin's surface, in m/s² (≈9.807 m/s²).

Specific impulse at sea level on Kerbin is is calculated by the following equation. To reduce confusion, specific impulse is given in both velocity and time units. Please see the discussion page for further reading on ways of expressing specific impulse.

\mathrm {I_{\rm {sp}}} ={\frac {F_{\rm {thrust}}}{{\dot {m}}\cdot g_{\rm {0}}}}

where:

I_{\rm {sp}}

is the specific impulse measured in seconds.

\mathrm {F_{\rm {thrust}}}

is the thrust obtained from the engine, in newtons.

${\dot {m}}$ is the mass flow rate in kg/s, which is negative the time-rate of change of the vehicle's mass since propellant is being expelled.

g_{\rm {0}}

is the acceleration at sea level on Kerbin's surface, in m/s² (≈9.807 m/s²).

Command Pods

Parts/Command Pods

Propulsion

Liquid Fuel Engines

								Thrust (kN)		T/W ratio		Max. Fuel Consumption (/s)	I_sp (s)		TVC
Image	Part	Radial size	Cost ()	Mass (t)	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	atm	vac	atm	vac	Max. Fuel Consumption (/s)	atm	vac	Gimbal (°)
	LV-1R "Spider" Liquid Fuel Engine	Radial mounted	120	0.02	2 000	7	50	1.79	2.0	9.14	10.20	0.141	260	290	10.0
	24-77 "Twitch" Liquid Fuel Engine	Radial mounted	230	0.08	2 000	7	50	15.17	16.0	19.34	20.39	1.125	275	290	8.0
	Mk-55 "Thud" Liquid Fuel Engine	Radial mounted	820	0.90	2 000	7	50	108.20	120.0	12.26	13.60	8.024	275	305	8.0
	O-10 "Puff" MonoPropellant Fuel Engine^{[Note 1]}	Radial mounted	150	0.09	2 000	7	50	9.60	20.0	10.88	22.66	2.039	120	250	6.0
	LV-1 "Ant" Liquid Fuel Engine	Tiny, Radial mounted	110	0.02	2 000	7	50	0.51	2.0	2.59	10.20	0.129	80	315	—
	48-7S "Spark" Liquid Fuel Engine	Tiny	240	0.13	2 000	7	50	16.56	20.0	12.99	15.69	1.275	265	320	3.0
	LV-909 "Terrier" Liquid Fuel Engine	Small	390	0.50	2 000	7	50	14.78	60.0	3.01	12.24	3.547	85	345	4.0
	LV-T30 "Reliant" Liquid Fuel Engine	Small	1 100	1.25	2 000	7	50	205.16	240.0	16.74	19.58	15.789	265	310	—
	LV-T45 "Swivel" Liquid Fuel Engine	Small	1 200	1.50	2 000	7	50	167.97	215.0	11.42	14.62	13.703	250	320	3.0
	S3 KS-25 "Vector" Liquid Fuel Engine	Small, Radial mounted	18 000	4.00	2 000	22	50	936.51	1 000.0	23.87	25.49	64.745	295	315	10.5
	T-1 Toroidal Aerospike "Dart" Liquid Fuel Engine	Small, Radial mounted	3 850	1.00	2 000	20	50	153.53	180.0	15.66	18.35	10.797	290	340	—
	LV-N "Nerv" Atomic Rocket Motor^{[Note 2]}	Small	10 000	3.00	2 500	12	50	13.88	60.0	0.47	2.04	1.530	185	800	—
	RE-L10 "Poodle" Liquid Fuel Engine	Large	1 300	1.75	2 000	7	50	64.29	250.0	3.75	14.57	14.568	90	350	4.5
	RE-I5 "Skipper" Liquid Fuel Engine	Large	5 300	3.00	2 000	8	50	568.75	650.0	19.33	22.09	41.426	280	320	2.0
	RE-M3 "Mainsail" Liquid Fuel Engine	Large	13 000	6.00	2 000	7	50	1 379.03	1 500.0	23.44	25.49	98.683	285	310	2.0
	LFB KR-1x2 "Twin-Boar" Liquid Fuel Engine^{[Note 3]}	Large, Radial mounted	17 000 (14 062.4)	42.50 (10.50)	2 000	20	50	1 866.67	2 000.0	4.48 (18.13)	4.80 (19.42)	135.964	280	300	1.5
	Kerbodyne KR-2L+ "Rhino" Liquid Fuel Engine	Extra large	25 000	9.00	2 000	7	50	1 205.88	2 000.0	13.66	22.66	119.968	205	340	4.0
	S3 KS-25x4 "Mammoth" Liquid Fuel Engine	Extra large	39 000	15.00	2 000	20	50	3 746.03	4 000.0	25.47	27.19	258.978	295	315	2.0
	CR-7 R.A.P.I.E.R. Engine^{[Note 4]}	Small	6 000	2.00	2 000	20	50	162.30	180.0	8.27	9.18	12.036	275	305	3.0

↑ Consumes monopropellant. (the density of monopropellant is less: 4kg/unit)
↑ Consumes liquid fuel only.
↑ The LFB KR-1x2 is a liquid fuel booster -- a combination of a "normal" engine and a fuel tank.
↑ The R.A.P.I.E.R. Engine is a combination of liquid fuel and jet engine. Only the liquid fuel engine properties are shown.

Jet Engines

Part	Radial size	Cost ()	Mass (t)	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	Thrust (kN)	TWR	Fuel (/s)	Intake (/s)	I_sp (s)	TVC (°)	Reverse
J-20 "Juno" Basic Jet Engine	Tiny	450	0.25	2 000	7	50	20.0 _{Mach 0} 20.6 _{Mach 1.3}	8.16 _{Mach 0} 8.40 _{Mach 1.3}	0.064	1.402	6 400	—	No
J-33 "Wheesley" Turbofan Engine	Small	1 400	1.5	2 000	7	50	120.0 _{Mach 0}	8.16 _{Mach 0}	0.233	29.601	10 500	—	Yes
J-404 "Panther" Afterburning Turbofan	Small	2 000	1.2	2 000	7	50	85.00 _{Mach 0} 107.89 _{Mach 1.75} / 130.00 _{Mach 0} 219.48 _{Mach 2.5}	7.22 _{Mach 0} 9.17 _{Mach 1.75} / 11.05 _{Mach 0} 18.65 _{Mach 2.5}	0.193 / 0.663	7.705 / 7.954	9 000 / 4 000	10.0	No
J-X4 "Whiplash" Turbo Ramjet Engine	Small	2 250	1.8	2 000	7	50	130.00 _{Mach 0} 386.66 _{Mach 3.0}	7.36 _{Mach 0} 21.90 _{Mach 3.0}	0.663	5.303	4 000	1.0	No
J-90 "Goliath" Turbofan Engine	Radial mounted	2 600	4.5	2 000	7	50	360.0 _{Mach 0}	8.16 _{Mach 0}	0.583	132.273	12 600	—	Yes
CR-7 R.A.P.I.E.R. Engine^{[Note 1]}	Small	6 000	2.0	2 000	20	50	105.00 _{Mach 0} 465.64 _{Mach 3.75}	5.35 _{Mach 0} 23.74 _{Mach 3.75}	0.669	4.015	3 200	3.0	No

↑ The R.A.P.I.E.R. Engine is a combination of liquid fuel and jet engine. Only the jet engine properties are shown.

Solid Fuel Boosters

Solid Fuel Density is 7.5 kg/unit				Mass (t)					Fuel ()	Thrust (kN)		TWR				I_sp (s)		Burn (s)
Solid Fuel Density is 7.5 kg/unit				Mass (t)						Thrust (kN)		Full		Empty		I_sp (s)
Image	Part	Radial size	Cost ()	Full	Empty	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)		atm	vac	atm	vac	atm	vac	atm	vac
	RT-5 "Flea" Solid Fuel Booster	Small, Radial mounted	200 (116)	1.50	0.45	2 000	7	50	140	162.91	192.0	11.07	13.05	36.92	43.51	140	165	8.8
	RT-10 "Hammer" Solid Fuel Booster	Small, Radial mounted	400 (175)	3.56	0.75	2 000	7	50	375	197.90	227.0	5.66	6.50	26.91	30.86	170	195	23.7
	BACC "Thumper" Solid Fuel Booster	Small, Radial mounted	850 (358)	7.65	1.50	2 200	7	50	820	250.00	300.0	3.33	4.00	17.00	20.39	175	210	42.2
	S1 SRB-KD25k "Kickback" Solid Fuel Booster	Small, Radial mounted	2 700 (1 140)	24.00	4.50	2 200	7	50	2 600	593.86	670.0	2.52	2.85	13.46	15.18	195	220	62.8
	Sepratron I	Radial mounted	75 (70.2)	0.0725	0.0125	2 000	7	50	8	13.79	18.0	19.40	25.32	112.51	146.84	118	154	5.0
	FM1 "Mite" Solid Fuel Booster	Tiny, Radial mounted	75 (51.0)	0.375	0.075	2 200	7	50	40	11.012	12.5	2.93	3.33	14.68	16.66	185	210	49.44
	F3S0 "Shrimp" Solid Fuel Booster	Tiny, Radial mounted	150 (96.0)	0.875	0.155	2 200	7	50	90	26.512	30.0	3.22	3.65	17.1	19.35	190	215	47.44
	S2-17 "Thoroughbred" Solid Fuel Booster	Large, Radial mounted	9 000 (4 200.0)	70.00	10.00	2 200	10	50	8 000	1 515.217	1 700.0	2.16	2.43	15.15	17.0	205	230	79.6
	S2-33 "Clydesdale" Solid Fuel Booster	Large, Radial mounted	18 500 (8 660.0)	144.00	21.00	2 200	10	50	16 400	2 948.936	3 300.0	2.05	2.29	14.04	15.71	210	235	85.9

Liquid Fuel Tanks

Liquid fuel and oxidizer density are both 5 kg/unit				Mass (t)					Liquid Fuel ()	Oxidizer ()
Image	Part	Radial size	Cost ()	Full	Empty	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	Liquid Fuel ()	Oxidizer ()
	R-4 'Dumpling' External Tank	X	50 (39.90)	0.1238	0.0138	2 000	5	50	9.9	12.1
	R-11 'Baguette' External Tank	X	50 (25.21)	0.3038	0.0338	2 000	5	50	24.3	29.7
	R-12 'Doughnut' External Tank	Small	147 (119.46)	0.3375	0.0375	2 000	6	50	27	33
	Oscar-B Fuel Tank	Tiny	70 (51.64)	0.225	0.025	2 000	6	50	18	22
	FL-T100 Fuel Tank	Small	150 (104.1)	0.5625	0.0625	2 000	6	50	45	55
	FL-T200 Fuel Tank	Small	275 (183.2)	1.125	0.125	2 000	6	50	90	110
	FL-T400 Fuel Tank	Small	500 (316.4)	2.25	0.25	2 000	6	50	180	220
	FL-T800 Fuel Tank	Small	800 (432.8)	4.5	0.5	2 000	6	50	360	440
	Rockomax X200-8 Fuel Tank	Large	800 (432.8)	4.5	0.5	2 000	6	50	360	440
	Rockomax X200-16 Fuel Tank	Large	1 550 (815.6)	9	1	2 000	6	50	720	880
	Rockomax X200-32 Fuel Tank	Large	3 000 (1 531.2)	18	2	2 000	6	50	1 440	1 760
	Rockomax Jumbo-64 Fuel Tank	Large	5 750 (2 812.4)	36	4	2 000	6	50	2 880	3 520
	Kerbodyne S3-3600 Tank	Extra large	3 250 (1 597.6)	20.25	2.25	2 000	6	50	1 620	1 980
	Kerbodyne S3-7200 Tank	Extra large	6 500 (3 195.2)	40.5	4.5	2 000	6	50	3 240	3 960
	Kerbodyne S3-14400 Tank	Extra large	13 000 (6 390.4)	81	9	2 000	6	50	6 480	7 920
	Mk2 Rocket Fuel Fuselage Short	Mk2	750 (566.4)	2.29	0.29	2 500	50	50	180	220
	Mk2 Rocket Fuel Fuselage	Mk2	1 450 (1 082.8)	4.57	0.57	2 500	50	50	360	440
	Mk3 Rocket Fuel Fuselage Short	Mk3	2 500 (1 352.5)	14.29	1.79	2 700	50	50	1 125	1 375
	Mk3 Rocket Fuel Fuselage	Mk3	5 000 (2 705)	28.57	3.57	2 700	50	50	2 250	2 750
	Mk3 Rocket Fuel Fuselage Long	Mk3	10 000 (5 410)	57.14	7.14	2 700	50	50	4 500	5 500
	C7 Brand Adapter - 2.5m to 1.25m	Small, Large	800 (433.0)	4.57	0.57	2 300	20	50	360	440
	C7 Brand Adapter Slanted - 2.5m to 1.25m	Small, Large	800 (433.0)	4.57	0.57	2 300	20	50	360	440
	Mk2 to 1.25m Adapter	Small, Mk2	550 (366.4)	2.29	0.29	2 500	50	50	180	220
	Mk2 to 1.25m Adapter Long	Small, Mk2	1 050 (682.8)	4.57	0.57	2 500	50	50	360	440
	Mk2 Bicoupler	Small, Mk2 x 2	860 (676.4)	2.29	0.29	2 500	50	50	180	220
	2.5m to Mk2 Adapter	Large, Mk2	800 (432.8)	4.57	0.57	2 500	50	50	360	440
	Mk3 to Mk2 Adapter	Mk2, Mk3	2 200 (1 282.0)	11.43	1.43	2 600	50	50	900	1 100
	Mk3 to 2.5m Adapter	Large, Mk3	2 500 (1 353.0)	14.29	1.79	2 600	50	50	1 125	1 375
	Mk3 to 2.5m Adapter Slanted	Large, Mk3	2 500 (1 353.0)	14.29	1.79	2 600	50	50	1 125	1 375
	Mk3 to 3.75m Adapter	Extra large, Mk3	2 500 (1 353.0)	14.29	1.79	2 600	50	50	1 125	1 375
	Kerbodyne ADTP-2-3	Large, Extra large	1 623 (246.0)	16.88	1.88	2 000	6	50	1 350	1 650

Fuselages (Jet Fuel Tanks)

Jet fuel is identical to the liquid fuel in liquid fuel tanks. Топливо для ВРД идентично жидкому топливу для ЖРД.

Liquid Fuel Density is 5 kg/unit				Mass (t)					Liquid Fuel ()
Image	Part	Radial size	Cost ()	Full	Empty	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	Liquid Fuel ()
	Engine Nacelle^{[Note 1]}	Small	600 (480)	0.925	0.15	2 000	10	50	150
	Engine Pre-cooler^{[Note 1]}	Small	1 650 (1 618)	0.375	0.15	2 000	10	50	40
	Mk1 Diverterless Supersonic Intake^{[Note 1]}	Small	720 (560)	1.18	0.17	2 000	10	50	200
	Mk0 Liquid Fuel Fuselage	Tiny	200 (160)	0.275	0.025	2 000	10	50	50
	Mk1 Liquid Fuel Fuselage	Small	550 (230)	2.25	0.25	2 000	10	50	400
	Mk2 Liquid Fuel Fuselage Short	Mk2	750 (430)	2.29	0.29	2 500	50	50	400
	Mk2 Liquid Fuel Fuselage	Mk2	1 450 (810)	4.57	0.57	2 500	50	50	800
	Mk3 Liquid Fuel Fuselage Short	Mk3	4 300 (2 300)	14.29	1.79	2 700	50	50	2 500
	Mk3 Liquid Fuel Fuselage	Mk3	8 600 (4 600)	28.57	3.57	2 700	50	50	5 000
	Mk3 Liquid Fuel Fuselage Long	Mk3	17 200 (9 200)	57.14	7.14	2 700	50	50	10 000
	NCS Adapter	Small, Tiny	320 (256)	0.5	0.1	2 400	10	50	80
	FAT-455 Aeroplane Main Wing^{[Note 2]}	X	2 800 (2 320)	3.78	0.78	1 200	15	50	600
	Big-S Wing Strake^{[Note 2]}	X	1 000 (920)	0.6	0.1	2 400	15	50	100
	Big-S Delta Wing^{[Note 2]}	X	3 000 (2 760)	2.0	0.5	2 400	15	50	300

↑ ^1.0 ^1.1 ^1.2 The Engine Nacelle, Engine Pre-cooler, and Mk1 Diverterless Supersonic Intake are a combination of air intake and liquid fuel tank. Only the tank properties are shown. They are located in the "Aerodynamic" category in the game.
↑ ^2.0 ^2.1 ^2.2 The FAT-455 Aeroplane Main Wing, Big-S Wing Strake, and Big-S Delta Wing are a combination of lifting surface and liquid fuel tank. Only the tank properties are shown. They are located in the "Aerodynamic" category in the game.

RCS Fuel Tanks

RCS Fuel Density is 4 kg/unit				Mass (t)					Monopropellant ()
Image	Part	Radial size	Cost ()	Full	Empty	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	Monopropellant ()
	FL-R20 RCS Fuel Tank	Tiny	200 (176)	0.10	0.02	2 000	12	50	20
	FL-R120 RCS Fuel Tank	Small	330 (186)	0.56	0.08	2 000	12	50	120
	FL-R750 RCS Fuel Tank	Large	1 800 (900)	3.4	0.4	2 000	12	50	750
	Mk2 Monopropellant Tank	Mk2	750 (270)	1.89	0.29	2 500	50	50	400
	Mk3 Monopropellant Tank	Mk3	5 040 (2 520)	9.8	1.4	2 700	50	50	2 100
	Stratus-V Roundified Monopropellant Tank	X	200 (176)	0.10	0.02	2 000	12	50	20
	Stratus-V Cylindrified Monopropellant Tank	X	250 (190)	0.23	0.03	2 000	12	50	50

Xenon

								Thrust (kN)		TWR		I_sp (s)		Max. Consumption
Image	Part	Radial size	Cost ()	Mass (t)	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	atm	vac	atm	vac	atm	vac	Electricity (⚡/s)	Xenon (/s)
	IX-6315 "Dawn" Electric Propulsion System	Tiny	8 000	0.25	2 000	7	50	0.048	2.0	0.019	0.816	100	4 200	8.741	0.486

Xenon density is 0.1 kg/unit				Mass (t)					Xenon ()
Image	Part	Radial size	Cost ()	Full	Empty	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	Xenon ()
	PB-X50R Xenon Container	Radial mounted	2 220 (600)	0.054	0.014	2 000	12	50	405
	PB-X150 Xenon Container	Tiny	3 680 (800)	0.100	0.024	2 000	6	50	720
	PB-X750 Xenon Container	Small	24 300 (1 500)	0.76	0.19	2 000	6	50	5 700

Command & Control

SAS modules

Image	Part	Radial size	Cost ()	Mass (t)	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	S.A.S. level	Electricity (⚡/s)
	CH-J3 Fly-By-Wire Avionics Hub	Tiny	5 200	0.08	2 400	7	50	3	0.03

Reaction wheels

Part	Radial size	Cost ()	Mass (t)	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	Torque (kN·m)	Electricity (⚡/s)
Small Inline Reaction Wheel	Tiny	600	0.05	2 000	9	50	5	0.25 (15 ⚡/min)
Advanced Inline Stabilizer	Small	1 200	0.1	2 000	9	50	15	0.45 (27 ⚡/min)
Advanced Reaction Wheel Module, Large	Large	2 100	0.2	2 000	9	50	30	0.6 (36 ⚡/min)

RCS thrusters

Part	Radial size	Cost ()	Mass (t)	Max. Temp. (K)	Tolerance (m/s)	Tolerance (g)	Thrust (kN)	Fuel (/s)	I_sp (s) (atm)	I_sp (s) (vac)
RV-1X Variable Thruster Block	Radial mounted	30	0.005	1 500	12	50	0.1	0.01	100	240
Place Anywhere 1 Linear RCS Port	Radial mounted	15	0.001	1 500	12	50	0.2	0.02	100	240
RV-105 RCS Thruster Block	Radial mounted	45	0.04	1 500	15	50	1.0	0.11	100	240
Place-Anywhere 7 Linear RCS Port	Radial mounted	25	0.02	2 600	15	50	2.0	0.21	100	240
Vernor Engine^{[Note 1]}	Radial mounted	150	0.08	2 000	15	50	12.0	0.94	140	260

↑ The Vernor Engine uses a liquid fuel/oxidizer mixture.

Structural & Aerodynamic

Parts/Structural & Aerodynamic

Utility & Scientific

Parts/Utility & Scientific

Decals

Parts/Decals

Crew

Parts/Crew

Template:Languages

[1] Consumes monopropellant. (the density of monopropellant is less: 4kg/unit)

[2] Consumes liquid fuel only.

[3] The LFB KR-1x2 is a liquid fuel booster -- a combination of a "normal" engine and a fuel tank.

[4] The R.A.P.I.E.R. Engine is a combination of liquid fuel and jet engine. Only the liquid fuel engine properties are shown.

[5] The R.A.P.I.E.R. Engine is a combination of liquid fuel and jet engine. Only the jet engine properties are shown.

[lftint-6] 1.0 ^1.1 ^1.2 The Engine Nacelle, Engine Pre-cooler, and Mk1 Diverterless Supersonic Intake are a combination of air intake and liquid fuel tank. Only the tank properties are shown. They are located in the "Aerodynamic" category in the game.

[wing-7] 2.0 ^2.1 ^2.2 The FAT-455 Aeroplane Main Wing, Big-S Wing Strake, and Big-S Delta Wing are a combination of lifting surface and liquid fuel tank. Only the tank properties are shown. They are located in the "Aerodynamic" category in the game.

[8] The Vernor Engine uses a liquid fuel/oxidizer mixture.

[Note 1]

[Note 2]

[Note 3]

[Note 4]

[Note 1]

[Note 1]

[Note 2]

[Note 1]

@@ Line 11: / Line 11: @@
 *[[w:Thrust-to-weight_ratio|Thrust to weight ratio]] at sea level on Kerbin is calculated by the following equation, which applies only to liquid or solid fuel rocket engines, jet engines use a complicated formula on a vehicle to vehicle basis.
-:<math>\frac{T}{W}=\frac{3,820\ \mathrm{kN}}{(5,307\ \mathrm{kg})(9.807\ \mathrm{m/s^2})}=0.07340\ \frac{\mathrm{kN}}{\mathrm{N}}=73.40\ \frac{\mathrm{N}}{\mathrm{N}}=73.40</math>
+:<math>\frac{T}{W}=\frac{T\ \mathrm{kN}}{(m\ \mathrm{t})(g_{\rm 0})(1000)}</math>
+where:
+:<math>T</math> is the thrust is the thrust obtained from the engine, in [[w:newton (unit)|kilonewton]]s.
+:<math>W</math> is the weight of the engine at sea level on [[Kerbin|Kerbin's]] surface.
+:<math>m</math> is the mass of the engine in metric tons (t).
+:<math>g_{\rm 0}</math> is the acceleration at sea level on [[Kerbin|Kerbin's]] surface, in m/s² (≈9.807 m/s²).
 *Specific impulse at sea level on Kerbin is is calculated by the following equation. To reduce confusion, [[w:Specific_impulse|specific impulse]] is given in both velocity and time units.  Please see the discussion page for further reading on ways of expressing specific impulse.
@@ Line 21: / Line 27: @@
 :<math>\mathrm{F_{\rm thrust}}</math> is the thrust obtained from the engine, in [[w:newton (unit)|newton]]s.
 :'''<math>\dot m</math>''' is the [[w:mass flow rate|mass flow rate]] in kg/s, which is negative the time-rate of change of the vehicle's mass since propellant is being expelled.
-:<math>g_{\rm 0}</math> is the acceleration at the [[Kerbin|Kerbin's]] surface, in m/s² (≈9.807 m/s²).
+:<math>g_{\rm 0}</math> is the acceleration at sea level on [[Kerbin|Kerbin's]] surface, in m/s² (≈9.807 m/s²).
 = Command Pods =

Difference between revisions of "Parts"

Revision as of 00:53, 22 October 2012

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