Found it took about 4 hours to dry 9 t-shirt like tops.  After 3 hours, half of them were dry and the remaining ones needed another hour/hour-an-half.  It was areas like the sleeves/neckline which took longer to dry.  Might get some plastic trouser/skirt hangers with the clips and do half-time hanging right and half time upside down to see if it will dry it all within the 3 hours.