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Show uu- CHICAGO, April 23. Two dc Havl-land-4 mall planes left Chicago today on a trial flight to Omaha. Walter J. Smith was pilot of the first plane, leading the way for the second pilot, who hacl not been over tho Chicago-Omaha Chicago-Omaha route before. Threo hundred pounds of mail were carried. Aerial mall officials here say they hope to open tho Chicago-Omaha route permanently on May 1. The aerial mail department is experimenting ex-perimenting with a new typo of plane which may be used on tho Omaha route lato Jn the summer. It Is the DII-1, equipped with two 220-horse-powor engines. The speed of this plane will be 105 miles .per hour and 11 will carry about 700 pounds of mall. The bl-motored plane will be safer than single-motored planes, for in case one engine fails It Is possible to glide many miles, with tho air of tho other, to a proper landing field. I According to plans of the postoffico department and tho congressional committee, this trial flight to Omaha is tho first step In extension of the aerial mall service westward through I Ogden to the Pacific coast. Commll-I Commll-I tees are at work to provide the landing land-ing field In this city. |