PW 777 First Flight News Release

From:         tristar500@aol.com (TriStar500)
Organization: America Online, Inc. (1-800-827-6364)
Date:         13 Jun 94 19:31:48 
References:   1
Next article
View raw article
  or MIME structure

PW4084 POWERS FIRST 777 FLIGHT  EVERETT, Wash., June 13 /PRNewswire/
-- The Boeing 777 made its first successful flight yesterday, June
12, powered by two Pratt & Whitney PW4084 engines, the most powerful
engines to ever fly in a commercial aircraft. 

The flight, piloted by Captains John Cashman and Ken Higgins of
Boeing, lasted three hours and 48 minutes.  During the flight, some
30 systems checks were carried out as the aircraft was put through
various maneuvers.  The two PW4084s, each developing 84,000 pounds of
thrust, performed flawlessly throughout the flight. 

One test involved shutting down one engine and relighting it.  As it
came back up to power, Captain Cashman was quoted as saying, "Pratt &
Whitney, dependable again." 

"Everyone at Pratt & Whitney is proud of the role we played in
yesterday's flight," said Karl J. Krapek, company president. 
"Thousands have worked for four years to make this flight happen and
to give our customers the most reliable, service-ready engine in the
industry.  It's another first in the long line of first the people of
Pratt & Whitney have achieved." 

Yesterday's flight begins a year-long test program which will involve
five Pratt-powered 777s.  The aircraft will enter revenue service in
June, 1995 at United Airlines.  Pratt engines have been selected to
power nearly half the 777s ordered so far.  Besides United, customers
include All Nipon Airways, Japan Air System and Japan Airlines. 

The engine received formal Federal Aviation Administration
certification in April of this year.  While the flight tests are
underway at Boeing over the next year, Pratt & Whitney will continue
a series of parallel tests at its own facilities to assure Extended
Twin Operations (ETOPS) capability at entry into service. 

Starting later this month engines will be put through several
thousand cycles of endurance testing under ETOPS conditions.  They
will go through cycles that exactly simulate long distance flights
and will be operated and maintained with airline standards and tools.


The PW4084 test program involves 23 engines and has already built up
over 2,500 hours of operation and 6,000 flight cycles.  This includes
23 flights totaling 76 hours aboard a Boeing 747 flying test bed. 

This engine is the newest and largest member of the PW4000 family of
engines. The PW4084 has been certified at 84,000 pounds of thrust,
although many of the critical certification tests were carried out at
a 90,000 pound rating.  It has produced more than 100,000 pounds of
thrust in ground tests.  It has a 112-inch diameter fan, as compared
with the 94-inch fan of the original PW4000.  That engine went into
service in 1987 and is used today aboard the Boeing 747 and 767, the
Airbus A300/A310 series and the McDonnell Douglas MD-11.  A 100-inch
fan version of the engine, the PW4168, will enter service later this
year on the new Airbus A330. 

Pratt & Whitney is a unit of United Technologies Corporation (NYSE:
UTX) of Hartford, Connecticut U.S.A. 

-0-              6/13/94 /CONTACT:  Larry Churchill of Pratt &
Whitney, 203-565-8896/ (UTX) 
 CO:  Pratt & Whitney; United Technologies Corporation ST: 
Washington, Connecticut IN:  ARO SU: