Annular Pool

 The annular swimming pool (donut shaped) is 8' (2.5 m) wide and 8' (2.5m) deep and 60 m in circumference.  The pool is fully instrument for filtering and heating (40º C) and cooling (10º C).  Studies can be conducted at speeds up to 15 mph using a bridge suspended over the pool and driven by the centrifuge.  The water in the pool can also be pumped to produce a 1.0 m/sec current in the pool (water treadmill).  The pool has three 4' by 4' under water window through which videotaping can be conducted.  The monitoring bride can be fully instrumented and is direct wired to computer processing for control, data collection and data processing.