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Unformatted text preview: ost Office requires its pilots to: Pass a qualifications exam
Have 500 flying hours
Pass periodic medical exams Post Office planes were routinely inspected with a 180 item checklist
Engine inspections occurred every 100 hours
Airframe inspections every 750 hours Airmail
Airmail 1911 Government begins experimenting with air mail delivery
1916 $50,000 appropriated for trial airmail route
1918 $100,000 for purchase, operation, and maintenance of planes for use by the Post Office
Originally planes and pilots provided by the Army as a training device for them Airmail
Airmail The first route was between New York and Washington D.C.
Despite a rugged start (Lt Boyle) after 3 months the Post Office had completed 88% of flights attempted – remember that there is no radio and no navaids at this time
Mostly flown in Curtiss Jenny’s
The WWI surplus Havilland D4’s (with Liberty engines) Airmail
Airmail The airmail did not operate when there was weather, or at night
Two significant problems severely limited airmail’s potential Lack of instrumentation that would allow blind flying – manufacturer’s problem
Lack of any navigational infrastructure – government problem By 1920 service extended westward to Omaha, Nebraska...
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- Spring '12