Tranquility

 2010-004

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Node 3 is built by Alenia. It is 7.19m long 4.48m dia. (6.7m long in ESA docs). Node 3 is the Hub Control Zone. 50 percent larger than Node 1, it will hold 8 racks. Node 3 will dock to Node 1 port (opposite Quest); the Cupola is launched attached to Node 3 port and will be relocated to Node 3 nadir. PMA-3 will be transferred from Node 2 zenith to Node 3 port. (Since Node 3 is attached to Node 1 port, the end ports on node 3 are 'port' and 'starboard' instead of forward and aft.)

Zenith port on Node 3 will be a base for Dextre and cannot be used as a CBM berth.

Manifested for STS-130/20A

Mass is 15500 kg at launch according to ESA, but according to FRDR baseline it is 14809 kg with Cupola, so 13004 kg without.

Combined Operational Load Bearing External Resistance Treadmill (COLBERT) will be transferred there as well as ARS (Air Revitalization System) rack.

Regen ECLSS racks also deleivered on 130.

Node 3 is launched with 5 racks and 3 empty rack positions. The ISP racks will return on STS-131.

The operational (post STS-131) rack layout will be

Payload:

• Avionics rack 1

• Avionics rack 2

• ARS Air revitalization system

• OGS Oxygen Generation system

• WRS1 Water Recovery System 1

• WRS2 Water Recovery System 2

• WHC Waste Hygiene Compartment Rack (toilet)

• T2 Colbert Treadmill

and in addition an ARED (Advanced Resistive Exercise Device) will be in the node.

The launch rack layout is:

Payload:

• Avionics rack 1

• Avionics rack 2

• ISP rack 1 (Integrated Stowage Platform)

• ISP rack 2 (Integrated Stowage Platform)

• ISP rack 3 (Integrated Stowage Platform)