Quote:
Originally Posted by Paper Kosmonaut
On the pre-launch pictures Rassvet had a couple of extra cargo parts on its back, an airlock module as I remember correctly, an elbow piece for one of the grappling arms
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With regards tot that elbow piece: that's the spare elbow for ERA. We have the funny situation that a structural spare for the European Robot Arm has been on the ISS for some time now, but ERA itself is still awaiting launch with the Nauka module (MLM - now scheduled for launch no earlier than 2014).