The desirability of employing leakproof process pumps for handling the corrosive and radioactive process solutions in the H.A.P.O. separations plants has led to the establishment of a program for the development and testing of packless pumps with particular emphasis on evaluation of commercially available units. One such pump, its operating characteristics and behavior, are described in this report.

Cluster fuel elements meet many of the requirements of high temperature recirculating water reactors and have several advantages over solid fuel elements. Operation at higher specific power levels for a given temperature limit are attainable because of the larger heat transfer surface. Failure of a single rod in cluster does not restrict coolant flow as severely as failure of a solid fuel element, hence the number and severity of stuck charges can be reduced.

Report presenting an investigation conducted in the 4- by 4-foot supersonic pressure tunnel at Mach number 1.41 and 2.01 to determine the static lateral and directional stability and control characteristics of a scale model of the Republic F-105 airplane. Results regarding the static lateral and directional stability and lateral and directional control are provided.