Crew Requirements

References
Apollo Command and Service Module System Specification (Block I) 28 August 1964 – North American Aviation

Apollo Crew Member Life Support Consumption

Material/Item

CSM Routine Flight

CSM Emergency Decompression

Heat Output
(BTU/day)

11,200

12,000

Oxygen
(lb/day)

1.84

1.97

Carbon Dioxide
(lb/day)

2.12

2.27

Latent Heat (lungs)
(BTU/day)

2,800

3,000

Latent Heat (sweat)
(BTU/day)

1,310

7,230

Sensible Heat
(BTU/day)

7,090

1,870

Urinary Loss
(g/day)

1,200

1,200

Sweat Loss
(g/day)

600

3,140

Lung Loss
(g/day)

1,200

1,300

Total Water Requirement
(g/day)

3,000

5,640

Total Water Requirement
(lb/day)

6.6

12.4