Info

Inbound deceleration

Inbound coast

Inbound acceleration

Outbound acceleration

Outbound coast

Outbound deceleration

Figure 1.4. Notional round trip to space destination from Earth involving four plus and minus accelerations used to establish mission mass ratios.

Table 1.3. Mass ratios for space exploration mission.

Two-way 21.2 114 382 986 2,163

Table 1.4. Current expendable and partially reusable rocket launchers.

Launcher

Nation

Payload (tons)

Gross wt/Payload

Number of lifts

Shuttle

0 0

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