In the year.1902, they thought Find out how to make the flight to sift. far more effective and will be put on the engine, and the sieve, at the end of the year 1903 of the world's first airplane was built by William Wright No.12 horse-power put into the sieve ฮอร์ค" "Laura sat back, rotate the blade (2 sides and named it as "serving" by William number is a trial flight was the first one.
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