In these, valves are on the side of the combustion chamber, in the engine block, and fuel and air enter from the side and exhaust exits out the same side. A cross section of this type of combustion chamber looks like an upside down letter L. So, flatheads are sometimes known as L-head engines.
They are American iconsâthey're on our dollars and coins, they are the subject of our monuments, and we live our daily lives in the world their ideas helped create. America's Founding Fathers include George Washington, John Adams, Thomas Jefferson, James Madison, Alexander Hamilton, James Monroe and, of course, Benjamin Franklin.
The following list of national founding figures is a record, by country, of people who were credited with establishing their nation. National founders are typically those who played an influential role in setting up the systems of governance,, of the country. They can also be military leaders of a war of independence that led to the existence of the country.