... passing fixed obstructions in channels, such as bridge piers and Venturi flumes. The theoretical treatment is essentially the same. 52. Curiously, however, self-propelled ships can move only in the sub-critical range. Acceleration into, and beyond, the critical range is prevented at a barrier speed...

... that for the practical analysis of vortex wanderings and mutual reactions to be effectivemore precise information is necessary (U) on the mini-flow propeller probes and their orientation, so that it may be clear exactly what velocitiesare being measured (b) on the exact positions of the propeller probes relative...

...SIR A J SIMS; J FORREST MINISTRY OF DEFENCE WARSHIPS DESIGN SHIPS SCIENCE ENGINEERING NAVAL CONSTRUCTION MARINE HISTORY COMPUTERS AIDS CAD SEAKEEPING STRUCTURAL MATERIALS SHOCKS PROPELLERS PROPULSION NUCLEAR SYSTEMS AUTOMATIC MACHINERY ELECTRIC POWER SUPPLY...