
WORLD'S FIRST successful convertiplane, the McDonnell XV-1, has again shattered the world's speed record for helicopters, reaching 200 miles-an-hour during recent tests near St. Louis.
John Noll, McDonnell test pilot, has put the unique craft through 13 successful helicopter-to-airplane conversions to date and Captain Wayne W. Eggert, Air Force ARDC test pilot, has made five.
The XV-1 recently concluded an intensive flight evaluation program conducted by an ARDC flight test staff from Edwards Air Force Base California.
Pg 14, Fig. 16, from AHS Newsletter/Vertiflite, September 1956
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