Launch Vehicle Performance Calculator

This utility performs an approximate calculation of launch vehicle payload performance from any launch site to any orbit. The methodology used is described here. Blame, credit, and/or comments to John Schilling.

Disclaimer: This is an estimate only, and should not be used for detailed mission planning. For exact performance, please contact the launch service provider.

And yes, Javascript is most definitely required.

Launch Vehicle:
Current	Proposed	Historic	User-defined

Launch Vehicle Family:

Number of Stages:	1	2	3

Strap-on Boosters?	Yes	No	# Boosters

	Booster	1^st Stage	2^nd Stage	3^rd Stage
Dry Mass, kg
Propellant, kg
Thrust, kN
Isp, seconds

Residuals, %

Default Propellant Residuals?	Yes	No

Restartable Upper Stage?	Yes	No

Paload Fairing:	Mass, kg		Jettison, s

Note: user-defined launch vehicles limited to simple 3-stage configurations. Most operational constraints are not supported. For more detailed modeling of new launch vehicles, please contact us.

Launch Vehicle Model:

Orbiter:

Payload Type:

Core Stage Type:

Series:

Payload Module Type:

Payload Fairing Type:

Upper Stage Type:

Payload Fairing Type:

Orbit Insertion Stage:

Solid Motor Type:

Number of SRBs:

Model:

Payload Fairing Type:

External Tank Type:

Earth Departure Stage:

Fairing:

Multi-Payload Adapter:

Atlas V nomenclature:
1st digit = 400 or 500 series
2nd digit = number of solid boosters
3rd digit = single or double-engine Centaur
Atlas V Heavy not yet available
Atlas V extended mission kit implemented as required

Delta II nomenclature:
1st digit = 6000 or 7000 series (6000 series obsolete)
2nd digit = number of solid boosters
4th digit = kick motor (5: Star-48B, 6: Star-37FM)
'H' suffix = GEM-46 SRBs

Delta IV M+ nomenclature:
1st digit = upper stage diameter, m 2nd digit = number of SRBs
Delta IV extended mission kit implemented as required

Taurus nomenclature:
1st digit = SSLV, Commerical, or XL series
2nd digit = fairing (1: 63-in, 2: 92-in)
3rd digit = 3rd stage (1: Orion 38, 3: Star 37)
4th digit = 4th stage (0: None, 3: Star 37)

H-IIA nomenclature:
1st digit = number of core stages
2nd digit = number of liquid boosters
3rd digit = number of SRB-A solid boosters
4th digit = number of SSB solid boosters

Note: Upper stage not recommended for Low Earth Orbit missions

Commercial Soyuz nomenclature:
Starsem 'Soyuz ST' = Soyuz FG or Soyuz 2-1A
Starsem 'Soyuz ST+' = Soyuz 2-1B

Commercial Zenit nomenclature:
'Sea Launch' = Zenit 3SL
'Land Launch' = Zenit 2SLB or Zenit 3SLB

Ariane 4 nomenclature:
1st digit = family designation
2nd digit = number of strap-on boosters
suffix = booster type (P: solid, L: liquid, LP: both)

Launch Site:
Launcher-specific	Complete List	User-defined

Site Name:

Latitude, deg:
Minimum Azimuth, deg:
Maximum Azimuth, deg:

Destination:
Earth Orbit		Escape Trajectory
Apogee, km		Hyperbolic C3, km²/s²
Perigee, km		Perigee, km
Inclination, deg		Declination, deg

Note: Perigee altitudes <100 km not recommended

Trajectory:	Direct Ascent	Two-Burn	Optimal

Shutdown Mode:	GCS	MRS

Calibration:	Raw Data	Mixed	User's Gude

Note: May require up to one minute for complex missions