PAYLOAD LAUNCH EQUATIONS

LAUNCH VEHICLE

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We will be operating from Spaceport America (SA).

LAUNCH SITE LATITUDE: 33.0o

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ORBITAL INCLINATION = 33.0o

Equation
PAYLOAD = –8.182 x ORBITAL ALTITUDE + 31085

Example
ORBITAL ALTITUDE = 185 km

PAYLOAD = –8.182 x ORBITAL ALTITUDE + 31085
PAYLOAD = –8.182 x 185 + 31085
PAYLOAD = 29,572 kg

Example
ORBITAL ALTITUDE = 500 km

PAYLOAD = –8.182 x ORBITAL ALTITUDE + 31085
PAYLOAD = –8.182 x 500 + 31085
PAYLOAD = 26,995 kg

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ORBITAL INCLINATION = 60.0o

Equation
PAYLOAD = –7.727 x ORBITAL ALTITUDE + 23182

Example
ORBITAL ALTITUDE = 185 km

PAYLOAD = –7.727 x ORBITAL ALTITUDE + 23182
PAYLOAD = –7.727 x 185 + 23182
PAYLOAD = 21,752 kg

Example
ORBITAL ALTITUDE = 500 km

PAYLOAD = –7.727 x ORBITAL ALTITUDE + 23182
PAYLOAD = –7.727 x 500 + 23182
PAYLOAD = 19,318 kg

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Graph A represents the payload capability of the VentureStar operating from Spaceport America. The endpoints range from 185 km to 500 km.

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