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[[preprinted]] May, 1911 AVIATION 23 revolutions per minute. This enables the engine to be run without the aeroplane being held back. Owing to the engine being of the radial type and having seven cylinders on one crank, absolute correct mathematical balance is obtained, and as the cylinders fire at equal angels of the crank, that is to say, three and a half in each revolution, and as the reaction from these is radial, perfect firing balance is also obtained. The turning effort of the crank is exceedingly even owing to the large number of impulses per revolution, and no fly wheel is required. The inlet pipes are of solid drawn aluminum fixed into a concentric ring solid with crank case. By this method the set of seven pipes to the set of cylinders are equal to each other in length. A suitable White & Poppe Carbuerator especially made to suit the engine is supplied. The weight of the motor is 195 pounds. [[line]] ESCAPED. Who Left the Gate Open? The following letter was received from Anto Boerder of New York City by the mayor of Los Angeles: "I wish to inform you," the letter runs, "that in the month of August I intend to make a transcontinental flight with my monster airship which is 733 feet long, 94 feet wide, and 133 feet deep, and capable of carrying 100 passengers. With this in view I wish to make a landing for a few days and exhibit the airship to the people, for which a certain fee can be charged for the benefit of the city, if a landing is made without considerable difficulty and cost. I would like to know if your Honor could oblige me with a good landing, and how much the city would give toward such an act." He signs himself "Inventor and Constructor," 122 East Twenty-ninth street, New York City. Dear Anton: You must think we are still wild and woolly out in this part of the country. Buy a "Ladies' Home Journal" and read up. We've got a hot landing place for with iron grill work on the windows. Say, pard, take the advise of an old time, and keep away from these parts, unless you want to get pumped full of lead ballast. A Cowboy Aviator. [[line]] A FEW DON'T FOR THE AMATEUR. Don't leave your motor uncovered in the shed or elsewhere. Make it a practice to keep it tightly covered except when working on or running it. Don't expect you motor to do good work unless you keep it in good shape. Don't think that a know don't hurt the motor. Remedy it at once. Don't run your motor if you think there is anything wrong with it. Don't try any experiments on motors you care for or where human lives are in danger. Don't overlook the lubricating oil supply or fail to see that the oil pump and pipes are working right. Don't use any lubricating that has not made good in the hardest kind of running. Don't use any graphite in your lubricating oils no matter how good the sales agent or would be mechanic says it is. Don't use ordinary oils on your magneto. Use the kind the manufacturer recommends and you may save yourself a lot of trouble. Don't expect a dirty spark plug to do good work. Don't expect good results from your motor, unless you keep the valve action timed perfectly, and the valves ground in well. [[line]] Radley-"I say, ole chap, what does aviation bread consist of?" Ely- "Give it up, Jimmie, what does it consist of?" Radley-"A little Graham-White. 'ow's that, Gene? Eh?" [[/preprinted]]
