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H-II Transfer Vehicle KOUNOTORI (HTV)

Last Updated: January 18, 2011

Payload Carried on the HTV ULC

Photo: HTV Exposed Pallet (EP)

HTV Exposed Pallet (EP)

Cargo Transport Container (CTC)



Photo: Layout inside the CTC (STS-129)

Layout inside the CTC (STS-129)

The Cargo Transport Container (CTC) is a storage box that measures about 1.2 x 0.9 x 0.9 meters. The CTC accommodates small Orbital Replacement Units (ORUs) and is installed outside of the ISS. The CTC can be opened and their contents can be retrieved either by EVA crew or with the DEXTER (Special Purpose Dexterous Manipulator: SPDM). The CTC, which is delivered on the HTV2 Mission, contains the spare Remote Power Controller Modules (RPCMs).

Flex Hose Rotary Coupler (FHRC)



PhotoLayout of unpressurized cargo on the EP (Left: FHRC, Right: CTC)

Layout of unpressurized cargo on the EP (Left: FHRC, Right: CTC)

The FHRC is a component of the station’s External Thermal Control System and facilitates the transfer of liquid ammonia across the rotating Thermal Radiator Rotary Joints (TRRJs) located on S1 and P1 trusses. Two FHRC ORUs, which were delivered to the ISS on the STS-114 (LF-1) and the STS-126(ULF-2) Missions, are currently stored on the ISS exterior. The HTV2 delivers the third FHRC ORU.

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