411(a)(8) defines the term normal retirement age as the earlier of (a) the time a. participant attains normal retirement age under the plan or (b) the later of the time a. plan participant attains age 65 or the 5th anniversary of the time a plan participant. commenced participation in the plan.
A steamboat is a boat in which the primary method of marine propulsion is steam power, typically driving propellers or paddlewheels.Steamboats sometimes use the prefix designation SS, S.S. or S/S (for 'Screw Steamer') or PS (for 'Paddle Steamer'), however these designations are most often used for Steamships.he worst of all steamboat accidents occurred at the end of the Civil War in April 1865, when the steamboat Sultana, carrying an over-capacity load of returning Union soldiers recently freed from a Confederate prison camp, blew up, causing more than 1,700 deaths.
Power Plant. The heart of the steamboat is the steam engine. Many different designs and variations of steam engines were developed and tried during the era of steam ships. The basic Watt engine was the most important design.To start the process, water is fed to a boiler that heats it up until it produces steam.The steam is then fed into a piston cylinder. It pushes the piston up to the top of its stroke. When it reaches the top, a valve is opened in the side of the cylinder to vent out the steam.o start the process, water is fed to a boiler that heats it up until it produces steam. The steam is then fed into a piston cylinder. It pushes the piston up to the top of its stroke. When it reaches the top, a valve is opened in the side of the cylinder to vent out the steam.