5 Yrs. Building Engine

| November/December 1968

410 S. 8th St.,Holland, Michigan 49423

Am enclosing a picture of my half scale Five H.P. Steam Traction Engine. It's a free lance resembling a Port Huron simple cylinder with the exception of rear wheels. This engine has all the appearance of a factory built engine with all brackets bolted on boiler such as counter shaft, rear wheels axle shafts and inter-medium gear and engine bed bearings.

Now for those contemplating building a half size engine, this makes a nice size to build, so am enclosing size of boiler here below, as this makes a very easy steaming engine, never lifts the water or blows over, no matter how hard you pull it, which is a great advantage, which waves water and fuel. Boiler size diameter 16 in., length of boiler 91 inches, smoke box 12 inches, length of flues 48% in. by 1% in diameter. 19 flues in number, flue sheet 3/8 in. thick in fire box, 5/16 in. in smoke box, rear boiler head 5/16 in. thick, throat sheet 3/8 in. thick, fire door size 6 x 8 in. dome size 8 x 9 in. boiler in. thick, crown sheet 5/16 in. thick with a 2 in. drop at the rear end of fire box, with 18 stay bolts 5/8 in. size. All stay bolts are threaded, riveted, light float weld for seepage, 4 5/8 size bolts in dome, 6 rows of 6 stay bolts on each side of fire box, 6 in row, or 72 stay bolts in all, with 9 stays in throat sheet, and the same in rear end of boiler. 1 in of water clearance on fire box sides and 1 in. clearance on both ends. Grate size in fire box 25 in by 13 in. or 331 sq. in. of heating surface or 7 sq. in of grate service to every gallon of water as boiler holds 45 gals, of water, with glass of water. Cylinder size 4 in. bore by 5 in. stroke.

For size of wheels, rear 39 x 10% in., front wheels 26 x 6 in. axle (front) VA in. rear axle shaft in 2 in. of diameter. Boiler Hydrostated tested at 240 lbs. sq. in. cold water.

Last, but not least, to the builders of Model Traction Steam engines, be sure and use all new material, and a good grade of steel boiler plate for boiler.

I started operating steam engines and threshers in the year 1913, so now if I blew my whistle too much, just let the steam go down.