Water Tunnel Tests of the M-6, 2.36" A. T. Rocket with Five Designs of Shroud Tail

This report covers tests on the M-6, 2.36" rocket with the conical pointed nose in combination with on experimental shroud ring toil from the Aberdeen Ballistic Research Laboratory, also with a commercially manufactured Ordnance Deportment shroud ring tail, and with three types of specially made model tails on which the shroud length was varied. One of the specially made model tails was mounted on a plain boom with no nozzle. All of the other tails were mounted on a stepped venturi nozzle