Honeywell 757 Engine Testbed N757HW
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Honeywell operates Boeing 757-225 N757HW as an engine testbed at Phoenix Sky Harbor Airport. It is powered by a pair of Rolls royce RB211-535E4B37 turbofans. It carries a third jet engine on the right side of the forward fuselage. The construction number of N757HW is 22194. It first flew on February 4, 1983. It was delivered to Eastern Airlines as N504EA on February 28, 1983. It was withdrawn from use at McCarren Airport, Nevada in January 1991. Airtours International Airways registered it as G-JALC on February 1, 1995. Airtours International Airways changed its name to MyTravel Airways on May 1, 2002. Honeywell International Incorporated gave it its current registration on October 4, 2005. It was flown to Pinal Airpark for painting on October 24, 2005. It made its first flight with three engines on December 20, 2008.
Honeywell's 757 engine testbed is based on the north side of the airport. A portable work shelter is visible to the left of the airplane.
N757HW departed from Runway 8 at 9:30 AM MST on February 1, 2010. It was conducting a production acceptance test of an AS907-1-1A turbofan engine for the Bombardier Challenger 300 business jet.
You can buy framed prints and greeting cards of this photograph.
You can buy framed prints and greeting cards of this photograph.
N757HW flew southeast and made four and a half circuits of a racetrack pattern in the "Gunslinger" restricted operating area over Southern Arizona and New Mexico at an about 32,000 altitude. Its ground speed varied from under 300 knots to over 500 knots.
See the track of this flight (downloaded from Flightwise.com) in Google Earth.
The Honeywell 757 engine testbed returned to Runway 8 at Sky Harbor 2 hours and 44 minutes after taking off.
N757HW deployed its thrust reversers to decelerate
Camelback Mountain serves as a backdrop as N757HW taxis back to its place on the flightline.
Honeywell's 757 engine testbed on approach to land on Runway 26 at Phoenix Sky Harbor International Airport on March 26, 2010. It was returning from a flight over southern Arizona and New Mexico. It flew over Gila Bend and made some circuits of a racetrack pattern in the "Gunslinger" restricted operating area. It is trailing an airspeed calibration cone from the tip of the vertical stabilizer.
See the track of this flight (downloaded from Flightwise.com) in Google Earth.
N757HW is conducting production acceptance tests of an HTF7000 turbofan engine for the Bombardier Challenger 300 and Gulfstream G250 business jets. It is testing an improved combustor system that will provide better lite-off and longer life. The HTF7000 was previously designated AS907. That designation is still used for legal and regulatory use.
Close-up of the test engine installation.
The HTF7000 has a thrust rating of 6,500 to 7,500 pounds. It has a bypass ratio of 4.4. Its fan diameter is 34.2 inches, and it weighs 1,364 pounds.
Honeywell's 757 engine testbed taxiing out for a test flight on May 1, 2010.
N757HW is testing a Honeywell TFE731-60 geared turbofan with approximately 5,000 pounds of static thrust. It has a bypass ratio of 3.9. The TFE731 was introduced by Garrett-AiResearch in 1972. It was derived from the core of the TSCP700 which was the auxiliary power unit of the McDonnell-Douglas DC-10. A wide variety of business jets are powered by variants of the TFE731. The TFE731-60 is used on Dassault Falcon 900DXs. It is 72 inches long and weighs 988 pounds
N757HW lines up with Runway 26 at 8:27 AM.
N757HW starts its take-off roll.
N757HW lifts of of Runway 26. The portable workstand used to shelter the technicians working on the test engine can be seen in the background.
N757HW headed southeast to the Gunslinger restricted operating area in southern Arizona and New Mexico.
N757HW on approach to land on Runway 26 at 11:39 AM. It had made three circuits of a racetrack pattern in Gunsliger and then three touch and go landings at Mesa Gateway Airport.
Close up of the test engine mounted on the right side of the forward fuselage of N757HW. The test engine nacelle was used for testing ear;ier models of the TFE731 in Dassault Falcon 20 FTB N200GT and Boeing 720 N720H.
N757HW trails an airspeed calibration cone from the tip of the vertical stabilizer.
You can buy a 2011 calendar featuring my photographs of Boeing Jetliner Prototypes and Testbeds.
A dozen photos of Boeing Jetliner Prototypes and Testbeds. Aircraft pictured include:
367-80 Stratoliner Prototype, N70700, MASDC, November 12, 1973
EC-137D Airborne Warning and Control System Prototype, 71-1408, Boeing Field, Seattle, June 18, 1973
727-63 General Electric Unducted Fan Testbed, N32720, Mojave Airport, November 9, 1986
747-121 General Electric Engine Testbed, N747GE, Kramer Junction, California, August 24, 1999
#1 737-900 Prototype, N737X, Edwards Air Force Base, November 2, 2000
NT-43A Radar Test Bed, 73-1155, Death Valley, January 24, 2003
#1 767-200 Airborne Surveillance Testbed, N767BA, Southern California Air Logistics Center, Victorville, June 17, 2005
#1 757-200 F-22 Avionics Testbed, N757A, Air Force Plant 42, Palmdale, California, February 13, 2006
747-273C Evergreen International Supertanker, N470EV, San Bernardino, May 31, 2006
720-051B Honeywell engine testbed N720H, Phoenix Sky Harbor International Airport, December 27, 2007
757-225 Honeywell engine testbed N757HW, Phoenix Sky Harbor International Airport, February 1, 2010
#4 787-8 Prototype N7874, Mesa Gateway Airport, Arizona, May 23, 2010
Put a copy of the Boeing Jetliner Prototypes and Testbeds: 2011 Calendar in your Lulu.com shopping cart.
Honeywell used former Northwest Airlines Boeing 720-051B N720H as a jet engine testbed at Sky Harbor until December 2007.
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