What was the top speed of the PT boat?
What was the top speed of the PT boat? With a full loaded weight of 56,000 pounds, C-378 made a top speed of 37 kn (69 km/h; 43 mph) with 1,400 horsepower (1,000 kW), and maintained an average speed of 34.5 kn (63.9 km/h; 39.7 mph) in a winter northeaster storm with 12-to-14-foot (3.7 to 4.3 m) seas, which would still be considered exceptional even 100 years later. What causes steering wheel to shimmy at certain speeds? Steering wheel shimmy or vibration that occurs only at certain speeds is often related to dynamic imbalance in the tires, wheels, or axles....