Mission Specialistshave the overall responsibilityfor the
coordination,with the Commanderand Pilot, of Space Shuttle operations
in the areas of crew activityplanning,consumablesusage, and Shuttle
Spacelab,developed and financedby l0 Europeannations under
agreementsconcludedwith the EuropeanSpace Agency, will be carried
in the cargo bay of the Shuttle Orbiter.
supply investigator with
laboratoryadapted for the weightlessenvironmentof space and pres-
surized for working without spacesuits.
In addition to the Commander,Pilot and two Mission Specialists,
Spacelab1 will include two Payload Specialists,one Europeanand
U.S. citizen who
have primary responsibilityfor operating the
With six crewmen onboard it will be possible to have two
operationalshifts of three crewmen each, consistingof a Mission
Specialist,CommanderPilot, and Payload Specialist. ###