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Rolls-Royce AE 3007

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AE 3007
AE 3007 on a Cessna Citation X
Type Turbofan
National origin United States
Manufacturer Allison Engine Company
Rolls-Royce North America
First run 1991[1]
Major applications Boeing MQ-25 Stingray
Cessna Citation X
Embraer ERJ family
Northrop Grumman RQ-4 Global Hawk
Northrop Grumman MQ-4C Triton
Number built 3,400+
Developed from Rolls-Royce T406

The Rolls-Royce AE 3007 (US military: F137) is a turbofan engine produced by Rolls-Royce North America, sharing a common core with the Rolls-Royce T406 (AE 1107) and AE 2100. The engine was originally developed by the Allison Engine Company, hence the "AE" in the model number.

Development

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AE 3007 on an Embraer ERJ 145

In 1988, Allison Engine Company (then owned by General Motors) and Rolls-Royce plc began joint studies of a 33 kN (7,400 lbf) RB580 to power the proposed Short Brothers FJX regional jet, combining the T406 core with a Rolls-Royce low-pressure spool. By late 1989, amid growing importance of the Rolls-Royce Trent engine and uncertainty over the Short Brothers project, Rolls-Royce quit. Allison Engine Company pursued the engine alone, revising the design as a new wide-chord snubberless (or clapperless) titanium fan and low-pressure turbine.[1]

On March 23, 1990, Allison's GMA 3007 was selected to power the Embraer EMB-145 regional jet.[2] In September 1990, it was selected for the Cessna Citation X.[1] The engine was first ground tested in mid-1991.[3] On August 21, 1992, the engine had its first test flight on a Cessna Citation VII testbed aircraft.[4] In 1995, Rolls-Royce bought Allison Engine Company and the engine had its first flight on the EMB-145. The Citation X AE3007C, producing 28.655 kN (6,442 lbf), was certificated by the FAA in February 1995; while the EMB-145 AE3007A, producing 39 kN (8,800 lbf), was certificated in mid-1996.[1]

In 1995, Teledyne Ryan selected the AE3007H for the Tier II+ unmanned surveillance aircraft (now the Northrop Grumman RQ-4 Global Hawk), which required long-endurance at up to 70,000 ft (21,000 m). It was tested at these altitudes in February 1996 at the Arnold Engineering Development Center in Tennessee and the first was delivered in May 1996.[1]

More than 3,400 engines have been delivered.[5] In 2014, 2,976 civil engines were installed.[6] In 2017, the AE 3007 in the ERJ family had flown over 53 million hours and over 44 million cycles.[7] It was flown for more than 60 million hours.[8] The engine is manufactured at the Rolls-Royce North America engine plant in Indianapolis, Indiana.[9]

Design

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The AE 3007 is a direct drive turbofan engine with a single stage fan, a 14-stage axial compressor with 6 stages of variable vanes including inlet guide vanes, an annular combustor, a two-stage high pressure turbine and a 3-stage low pressure turbine. The accessory gearbox is mounted at its bottom and two single channel FADEC units are mounted in the aircraft. It has fore and aft mounting provisions for underwing pylon or aft fuselage installation.[10] The AE 3007 has a thrust-specific fuel consumption (TSFC) of 0.36 lb/(lbf⋅h) (10 g/(kN⋅s)) at static sea level takeoff and 0.65 lb/(lbf⋅h) (18 g/(kN⋅s)) at a cruise speed of Mach 0.8 and altitude of 35,010 ft (10,670 m).[11] The engine's A variant was designed to produce a cruise thrust of 6.3 kN (640 kgf; 1,420 lbf) at Mach 0.8 and 41,000 ft (12,000 m) altitude.[12]

Variants

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AE 3007C, C1, C2
AE 3007A, A1, A1/1, A1/3, A3, A1P, A1E, A2
AE 3007G
Proposed powerplant for the 48-50 seat Fairchild Dornier 528JET[13]
AE 3007H (F137)
AE 3007N
GMA 3008
A proposed 8,000 lbf (36 kN; 3,600 kgf) thrust variant with a 38.5 in (98 cm) diameter fan[14]
AE3009
A proposed 9,000 lbf (40 kN; 4,100 kgf) thrust version with a new high-pressure turbine ceramic-matrix composite tailcone[15]
GMA 3010 / AE 3010
A 10,000 lbf (44.5 kN; 4,540 kgf) thrust variant, which was to power the Yakovlev Yak-77 twin-engine business jet[16] as a derated variant of the GMA 3012 with a 44 in diameter (112 cm) fan[17]
GMA 3012 / AE 3012
A proposed 12,000 lbf (53 kN; 5,400 kgf) thrust variant with a 44 in diameter (112 cm) fan, two-stage intermediate compressor, an extra stage in the low pressure turbine, and an advanced high pressure turbine[14]
GMA 3014 / GMA 3014 ADV
A proposed variant targeted toward the Regioplane consortium's 80-130-seat Regioliner RL 92/RL 122 (the successor to the MPC 75),[18] with a 55 in diameter (140 cm) fan,[17] 14,000–20,000 lbf (62–89 kN; 6,400–9,100 kgf) of thrust, a new eight-stage compressor, dual-bank combustor, and a four-stage low pressure turbine[19]

Applications

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Specifications

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Undergoing maintenance
AE 3007 data sheet[20]
Variant AE 3007C AE 3007A
Compressor Single-stage fan and 14-stage axial HP[10]
Fan 24 blades, 38.5 in (98 cm) diameter[21]
Combustor Annular[10]
Turbine 2-stage HP, 3-stage LP[10]
Takeoff thrust 6,442–7,042 lbf (28.66–31.32 kN) 7,580–9,500 lbf (33.7–42.3 kN)
Fan shaft rpm 7,344–7,518 7,716–8,248
Gas generator rpm 15,196–15,452 15,452–16,245
Length 115.08 in (292.3 cm)
Width 46.14 in (117.2 cm)
Height 55.70 in (141.5 cm)
Weight 1,614–1,641 lb (732–744 kg) 1,657–1,681 lb (752–762 kg)
Thrust to weight 4–4.3 4.6–5.6
TSFCSSL 0.36 lb/(lbf⋅h) (10 g/(kN⋅s))[11]
Interstage Turbine Temperature[10] 888–907 °C (1,630–1,665 °F) 921–970 °C (1,690–1,778 °F)
Overall Pressure ratio 23:1[21]
Bypass ratio 5:1[21]

See also

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Related development

Comparable engines

Related lists

References

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  1. ^ a b c d e Guy Norris (10 April 1996). "Baby big fan". Flight International.
  2. ^ "Allison Gas Turbine wins pact". Indianapolis Star. 24 March 1990. p. D–12. ISSN 1930-2533.
  3. ^ "Allison begins ground tests of GMA 3007 commercial turbofan engine". Headline News. Aviation Week & Space Technology. New York City, New York, USA. 5 August 1991. p. 64. ISSN 0005-2175.
  4. ^ "Mix and match". Flying. Vol. 119, no. 11. November 1992. p. 32. ISSN 0015-4806.
  5. ^ "AE 3007 for Transport, Tanker, Patrol & Tactical". Rolls-Royce.
  6. ^ "Civil engine deliveries installed base" (PDF). Rolls-Royce. 2017.
  7. ^ "AE 3007 infographic" (PDF). Rolls-Royce. 24 October 2017.
  8. ^ "AE 3007 for business aviation". Rolls-Royce.
  9. ^ "Rolls-Royce AE3007: Power for Embraer and Cessna" (PDF). Rolls-Royce.
  10. ^ a b c d e "Type Certificate Data Sheet No. IM.E.044 for AE 3007 Series Engines" (PDF). EASA. 22 May 2015.
  11. ^ a b Élodie Roux (2007). Turbofan and turbojet engines: Database handbook. Elodie Roux. p. 50. ISBN 9782952938013. OCLC 879328119.
  12. ^ Moll, Nigel (June 1991). "Citation X is a 10". Flying. pp. 106–108, 110, 114. ISSN 0015-4806.
  13. ^ Bombeau, Bernard (May 1997). "Regional manufacturers carve up the market". Cover story. Interavia. Vol. 52, no. 609. pp. 33–38. ISSN 1423-3215. OCLC 203451782.
  14. ^ a b Moorman, Robert W. (July 1993). "The leader of the pack". Air Transport World. Vol. 30, no. 7. pp. 58+. ISSN 0002-2543. Gale A14069032.
  15. ^ Sweetman, Bill (October 1994). "New power for regionals". Finance, markets & industry. Interavia. Vol. 49, no. 583. Minneapolis, Minnesota, U.S.A. pp. 16–18. ISSN 1423-3215. OCLC 199793280.
  16. ^ Gethin, Howard; Pite, Jennifer (7 March 1995). "Better business: Business improved for corporate-aircraft makers in 1994 and the upswing is expected to continue". FlightGlobal. London, England, U.K.
  17. ^ a b "Allison stakes much of civil and commercial future on T406: Core will carry division from 6,000 lbst. to 12,000 lbst". Aerospace Propulsion. Vol. 3, no. 10. 14 May 1992. pp. 1+. ISSN 1050-5245 – via Factiva.
  18. ^ Thomalla, Volker K. (February 1992). Regioplane consortium to develop 80-130-seat passenger liner. Science & Technology: Europe (Report). JPRS Report. Translated by Foreign Broadcast Information Service (published 27 March 1992). pp. 5–7. {{cite report}}: Unknown parameter |agency= ignored (help)
  19. ^ Moorman, Robert W. (November 1992). "The race is on". Air Transport World. Vol. 29, no. 11. pp. 73+. ISSN 0002-2543. Gale A12860535.
  20. ^ "Type Certificate Data Sheet No. TE6CH" (PDF). FAA. 30 December 2016.
  21. ^ a b c "AE 3007 Poster" (PDF). Rolls-Royce. 2017.
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