Steam Power

| March/April 1960

219 N. Allen, Harrison, Arkansas

I am sending you a picture of a steam engine that is quite different from the pictures that you usually print in the Album. Instead of being old it is just about the latest. It was lately built by Allis-Chalmers. It is rated at 300,000 Kilowatt capacity so would develop about 400,000 horsepower.

Most people even including our steam engine fans believe that steam is completely out of date and out of use. This is far from the truth. Steam is still king in the field of electric power. The last authorative figures that I have seen show that over three fourths of the public electric power used in the United States is generated by steam and the trend has been toward steam for several years. About four times as much steam generating equipment is being installed as there is of water power and Diesel combined.

So far atomic power has only been utilized by steam. The propellers of the Nautilus, the Sea Wolf, and all our big carriers are turned by steam turbines.

These are very different from the old piston engines that we used to drive our threshers. They use steam at 1600 lbs. and over per square inch superheated to over 1000 degrees, and even the big ones with rotors six feet and over in diameter turn 3600 revolutions per minute.

The picture was taken from the Allis-Chalmers report to their stock holders for 1958. If you think that your readers would want to see it, Allis-Chalmers would probably be glad to give permission to print it.