Space Agency has approved 2 extra STS mission, STS-29 and 30, that will precede STS-28.
Due to the excess of heating produced by the station, extra radiators are needed, but the space actually available on the trusses is not enough.
So the 2 shuttles will deliver to CSS 2 new trusses that will be interposed between the existent 2 and the P3/4 and S3/4 segments.
The 2 long duration missions will be very challenging: in fact it will be needed to remove and temporarly relocate the solar arrays yet installed, to allow the interposition of Extra-Truss 3 and 4.
Then STS-31 will then bring up the 1st set of radiators.
Finally STS-28, with the 4th set of solar arrays will visit the station, followed by STS-32 with the second set of radiators for the starboard side.
Due to the excess of heating produced by the station, extra radiators are needed, but the space actually available on the trusses is not enough.
So the 2 shuttles will deliver to CSS 2 new trusses that will be interposed between the existent 2 and the P3/4 and S3/4 segments.
The 2 long duration missions will be very challenging: in fact it will be needed to remove and temporarly relocate the solar arrays yet installed, to allow the interposition of Extra-Truss 3 and 4.
Then STS-31 will then bring up the 1st set of radiators.
Finally STS-28, with the 4th set of solar arrays will visit the station, followed by STS-32 with the second set of radiators for the starboard side.
