For construction, Jorg and I have divided the 216 antenna stations into 
three groups, the Central Cluster, the Inner Array, and the Outer Array. 
These groups reflect the budget responsilibities of NRAO (60%) and ESO 
(40%). Outside the central cluster, the stations are far enough apart 
there should be little or no interference beween construction activities 
and antenna operations. Inside the central cluster, on the other hand, I 
expect antenna operations will not be practical until the entire cluster 
is finished. At the moment, the schedule is driven by the design and 
contracting processes. To minimize the cost, we will probably leave the 
order of station construction within the groups to the discrection of 
the contractor. If there are specific science or operations requirements 
for particular stations at particular times, please let us know.

Simon

NRAO:
   Central Cluster
      79 stations:     1-78 & 84
      Contract signed            30-Nov-2004
      Provisional Acceptance	30-Jun-2007
   Inner Array
      51 stations, < 617 m from array center:
        79-83, 85-124, 127, 128, 140, & 170-172
      Contract signed            30-Jun-2004
      Provisional Acceptance	01-Jun-2006

ESO:
   Outer Array
      86 stations, > 618 m from array center:
        125, 126, 129-139, 141-169, & 173-216
      Contract signed            01-Mar-2008
      Provisional Acceptance     01-Oct-2011

PS: This note is my response to the action item in Christoph's list.