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.
Founding Fathers of the United States. Declaration of Independence, a painting by John Trumbull depicting the Committee of Five presenting their draft of the Declaration of Independence to the Congress on June 28, 1776. Trumbull's painting appears on the reverse of the United States two-dollar bill. The Founding Fathers of the United States are the individuals of the Thirteen British Colonies in North America who led the American Revolution against the authority of the British Crown and established the United States of America.