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MD 520N COMPLETES SUCCESSFUL HAWAII DEMONSTRATION; NOISE COMPLAINTS NIL; AIRCRAFT PERFORMANCE NEAR PERFECT

 MESA, Ariz., Sept. 28 /PRNewswire/ -- It's three thumbs up for the MD 520N's eight-week evaluation in environmentally sensitive Hawaii.
 The passengers, the pilots and the neighbors have each given high marks to the NOTAR(R) system-equipped McDonnell Douglas MD 520N helicopter for its performance, low-vibration ride and low-noise operations during a two-month evaluation with a major Hawaiian aerial tour operator.
 The helicopter was used on high-density tour operations by Papillon Hawaiian Helicopters to test its performance in very tough operating circumstances. It flew 234 hours during the period.
 Approximately 1,000 tourists flew in the aircraft, getting a breath-taking aerial view of Hawaii's spectacular scenery.
 In typical tourist operations, helicopters fly grueling daily flight schedules. The MD 520N carried four passengers per flight and often flew six hour-long flights a day.
 With a pilot and four passengers aboard, the flight routine included sea-level departures in temperatures up to 90 F (32 C).
 The flight would cover the coastal areas and canyons and then climb to near 5,000 ft (1524 m) for views of the Mauna Loa Volcano.
 "The entire evaluation was successful," said Jon Knapp, McDonnell Douglas marketing manager. "In a location where noise complaints average 100 per week, virtually none were directed at the MD 520N."
 Knapp added, "Papillon's customers were thrilled with the smoothness of the flight, the visibility from their window seats and the opportunity to ride in the latest technology available in helicopters."
 Pilots, who routinely fly multiple flights daily, also had high praise for the smoothness and ease of handling of the helicopter. Chuck Benson, who logged 170 hours of tour flights in the MD 520N, lauded its performance.
 "Upwind, downwind or cross wind, it makes no difference to the helicopter and the NOTAR system," Benson said. "I was able to conduct segments of the tours, especially hovering segments, that would be impossible in a conventional tail rotor-equipped helicopter."
 "Each of the pilots who flew the aircraft reported less fatigue and stress at the end of their daily flight routine," Knapp said.
 Aircraft reliability also met company expectations.
 "Despite the rigorous flying schedule, the helicopter performed flawlessly, never missing a flight during the eight-week test," he said. "I think Papillon has proven to the world that the MD 520N is a very safe and reliable helicopter that also is very friendly to the environment."
 -0- 9/28/93
 /CONTACT: Ken Jensen, McDonnell Douglas Helicopter Systems, 602-891-2119/


CO: McDonnell Douglas Helicopter Systems ST: Arizona IN: AIR SU:

JB-EH -- LA010 -- 6347 09/28/93 11:44 EDT
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Publication:PR Newswire
Date:Sep 28, 1993
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