GE-Aviation
Encyclopedia
GE Aviation, a subsidiary of General Electric
General Electric
General Electric Company , or GE, is an American multinational conglomerate corporation incorporated in Schenectady, New York and headquartered in Fairfield, Connecticut, United States...

, is headquartered in Evendale, Ohio
Evendale, Ohio
Evendale is a village in Hamilton County, Ohio, United States. The population was 3,090 at the 2000 census.Evendale was the home of John Van Zandt, a participant in the Underground Railroad....

 (a Cincinnati suburb). GE Aviation is the top supplier of aircraft engine
Aircraft engine
An aircraft engine is the component of the propulsion system for an aircraft that generates mechanical power. Aircraft engines are almost always either lightweight piston engines or gas turbines...

s in the world, and offers engines for the majority of commercial aircraft
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air, or, in general, the atmosphere of a planet. An aircraft counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines.Although...

. GE Aviation is part of the General Electric conglomerate, which is one of the world's largest corporations. The division operated under the name of General Electric Aircraft Engines or GEAE until September 2005.

GE Aviation's main competitors in the engine market are Rolls-Royce
Rolls-Royce plc
Rolls-Royce Group plc is a global power systems company headquartered in the City of Westminster, London, United Kingdom. It is the world’s second-largest maker of aircraft engines , and also has major businesses in the marine propulsion and energy sectors. Through its defence-related activities...

 and Pratt & Whitney
Pratt & Whitney
Pratt & Whitney is a U.S.-based aerospace manufacturer with global service operations. It is a subsidiary of United Technologies Corporation . Pratt & Whitney's aircraft engines are widely used in both civil aviation and military aviation. Its headquarters are in East Hartford, Connecticut, USA...

.

Early efforts

General Electric had a long history in steam turbine work, dating back to the turn of the century. In 1903 they hired Sanford Alexander Moss
Sanford Alexander Moss
Sanford Alexander Moss was an aviation engineer, he was the first to use a turbocharger on an aircraft engine.-Biography:...

, who, in time, started the development of turbosuperchargers at GE. This led to a series of record-breaking flights over the next ten years. At first the role of high-altitude flight was limited, but in the years immediately prior to WWII they became standard equipment on practically all military aircraft. GE was a world leader in this technology; most other firms concentrated on the mechanically simpler supercharger driven by the engine itself, while GE had spent considerable effort developing the exhaust driven turbo system that offered higher performance.

This work made them the natural industrial partner to develop jet engine
Jet engine
A jet engine is a reaction engine that discharges a fast moving jet to generate thrust by jet propulsion and in accordance with Newton's laws of motion. This broad definition of jet engines includes turbojets, turbofans, rockets, ramjets, pulse jets...

s when Frank Whittle
Frank Whittle
Air Commodore Sir Frank Whittle, OM, KBE, CB, FRS, Hon FRAeS was a British Royal Air Force engineer officer. He is credited with independently inventing the turbojet engine Air Commodore Sir Frank Whittle, OM, KBE, CB, FRS, Hon FRAeS (1 June 1907 – 9 August 1996) was a British Royal Air...

's W.1
Power Jets W.1
|-See also:-Bibliography:*Gunston, Bill. World Encyclopedia of Aero Engines. Cambridge, England. Patrick Stephens Limited, 1989. ISBN 1-85260-163-9*Jane's Fighting Aircraft of World War II. London. Studio Editions Ltd, 1998...

 engine was demonstrated to Hap Arnold in 1941. A production license was arranged in September, and several of the existing W.1 test engines shipped to the US for study, where they were converted to US manufacture as the I-A. GE quickly started production of improved versions; the I-16 was produced in limited numbers starting in 1942, and the much more powerful I-40 followed in 1944, which went on to power the first US combat-capable jet fighters, the P-80 Shooting Star
P-80 Shooting Star
The Lockheed P-80 Shooting Star was the first jet fighter used operationally by the United States Army Air Forces. Designed in 1943 as a response to the German Messerschmitt Me-262 jet fighter, and delivered in just 143 days from the start of the design process, production models were flying but...

.

Early jet engine work took place at GE's Syracuse, NY (steam turbine) and Lynn, MA (supercharger) plants, but soon concentrated at the Lynn plants. On 31 July 1945 the Lynn plant became the "Aircraft Gas Turbine Division". GE was repeatedly unable to deliver enough engines for Army and Navy demand, and production of the I-30 (now known as the J33) was also handed to Allison Engines in 1944. After the war ended, the Army canceled its orders for GE-built J33s and turned the entire production over to Allison, and the Syracuse plant closed.

Military and civilian expansion

These changes in fortune led to debate within the company about carrying on in the aircraft engine market. However, the engineers at Lynn pressed ahead with development of a new engine, the TG-180, which was designated J35 by the US military. Development funds were allotted in 1946 for a more powerful version of the same design, the TG-190. This engine finally emerged as the famed General Electric J47
General Electric J47
|-Specifications :-Nuclear-powered version – The X39:In the 1950s, interest in the development of nuclear-powered aircraft led GE to experiment with two nuclear-powered gas turbine designs, one based on the J47, and another new and much larger engine called the X211.The design based on the J47...

, which saw saw great demand for several military aircraft; a second manufacturing facility near Cincinnati was opened. J47 production ran to 30,000 engines by the time the lines closed down in 1956. Further development of the J47 by Patrick Clarke in 1957 led to the J73
General Electric J73
|-See also:-External links:...

, and from there into the much more powerful J79. The J79 was GE's second "hit", leading to a production run of 17,000 in several different countries. Other successes followed, including the J85
General Electric J85
-External links:**...

 and F404.

The TF39
General Electric TF39
|-See also:-External links:*...

 was the first high-bypass turbofan engine to enter production. Entered into the C-5 Galaxy
C-5 Galaxy
The Lockheed C-5 Galaxy is a large military transport aircraft built by Lockheed. It provides the United States Air Force with a heavy intercontinental-range strategic airlift capability, one that can carry outsize and oversize cargos, including all air-certifiable cargo. The Galaxy has many...

 contest in 1964 against similar designs from Curtiss-Wright
Curtiss-Wright
The Curtiss-Wright Corporation was the largest aircraft manufacturer in the United States at the end of World War II, but has evolved to largely become a component manufacturer, specializing in actuators, aircraft controls, valves, and metalworking....

 and Pratt & Whitney
Pratt & Whitney
Pratt & Whitney is a U.S.-based aerospace manufacturer with global service operations. It is a subsidiary of United Technologies Corporation . Pratt & Whitney's aircraft engines are widely used in both civil aviation and military aviation. Its headquarters are in East Hartford, Connecticut, USA...

, GE's entry was selected as the winner during the final down-select in 1965. This led to a civilian model, the CF6
General Electric CF6
The General Electric CF6 is a family of high-bypass turbofan engines produced by GE Aviation. A development of the first high-power high-bypass jet engine available, the TF39, the CF6 powers a wide variety of civilian airliners. The basic engine core formed the basis for the LM2500, LM5000, and...

, which was offered for the Lockheed L-1011
Lockheed L-1011
The Lockheed L-1011 TriStar, commonly referred to as the L-1011 or TriStar, is a medium-to-long range, widebody passenger trijet airliner. It was the third widebody airliner to enter commercial operations, following the Boeing 747 and the McDonnell Douglas DC-10. Between 1968 and 1984, Lockheed...

 and McDonnell Douglas DC-10
McDonnell Douglas DC-10
The McDonnell Douglas DC-10 is a three-engine widebody jet airliner manufactured by McDonnell Douglas. The DC-10 has range for medium- to long-haul flights, capable of carrying a maximum 380 passengers. Its most distinguishing feature is the two turbofan engines mounted on underwing pylons and a...

 projects. Although Lockheed later changed their engine to the Rolls-Royce RB211
Rolls-Royce RB211
The Rolls-Royce RB211 is a family of high-bypass turbofan engines made by Rolls-Royce plc and capable of generating 37,400 to 60,600 pounds-force thrust. Originally developed for the Lockheed L-1011 , it entered service in 1972 and was the only engine to power this aircraft type...

, the DC-10 continued with the CF6, and this success led to widespread sales on many large aircraft including the Boeing 747
Boeing 747
The Boeing 747 is a wide-body commercial airliner and cargo transport, often referred to by its original nickname, Jumbo Jet, or Queen of the Skies. It is among the world's most recognizable aircraft, and was the first wide-body ever produced...

.

Another military-to-civilian success followed when GE was selected to supply engines for the S-3 Viking
S-3 Viking
The Lockheed S-3 Viking is a four-seat twin-engine jet aircraft that was used by the U.S. Navy to identify, track, and destroy enemy submarines. In the late 1990s, the S-3B's mission focus shifted to surface warfare and aerial refueling. The Viking also provided electronic warfare and surface...

 and A-10 Thunderbolt, developing a small high-bypass engine using technologies from the TF39. The resulting General Electric TF34 was adapted to become the General Electric CF34, whose wide variety of models powers many of the regional jet
Regional jet
A Regional jet , is a class of short to medium-range turbofan powered airliners.-History:The term "Regional jet" describes a range of short to medium-haul turbofan powered aircraft, whose use throughout the world expanded after the advent of Airline Deregulation in the United States in...

s flying today.

Modern powerhouse

In 1974 GE entered into an agreement with Snecma
Snecma
Snecma is a major French manufacturer of engines for commercial and military aircraft, and for space vehicles. The name is an acronym for Société Nationale d'Étude et de Construction de Moteurs d'Aviation .In 2005, the Snecma group, which included Snecma ,...

 of France to jointly produce a new mid-sized turbofan, which emerged as the CFM56. A 50/50 joint partnership was formed with a new plant in Evendale, OH to produce the design. At first sales were very difficult to come by, and the project was due to be cancelled. Only two weeks before this was to happen, in March 1979, several companies selected the CFM56 to re-engine their existing Douglas DC-8
Douglas DC-8
The Douglas DC-8 is a four-engined narrow-body passenger commercial jet airliner, manufactured from 1958 to 1972 by the Douglas Aircraft Company...

 fleets. In February 2008, CFM delivered their 18,000th engine of the CFM56 family.

The success of the CFM led GE to join in several similar partnerships, including Garrett AiResearch
Garrett AiResearch
Garrett AiResearch was a manufacturer of turboprop engines and turbochargers, and a pioneer in numerous aerospace technologies. It was previously known as Aircraft Tool and Supply Company, Garrett Supply Company, AiResearch Manufacturing Company, or simply AiResearch...

 for the CFE CFE738
CFE CFE738
|-See also:-External links:* *...

, Pratt & Whitney
Pratt & Whitney
Pratt & Whitney is a U.S.-based aerospace manufacturer with global service operations. It is a subsidiary of United Technologies Corporation . Pratt & Whitney's aircraft engines are widely used in both civil aviation and military aviation. Its headquarters are in East Hartford, Connecticut, USA...

 on the Engine Alliance GP7000, and, more recently, Honda
Honda
is a Japanese public multinational corporation primarily known as a manufacturer of automobiles and motorcycles.Honda has been the world's largest motorcycle manufacturer since 1959, as well as the world's largest manufacturer of internal combustion engines measured by volume, producing more than...

 for the GE Honda Aero Engines
GE Honda Aero Engines
GE Honda Aero Engines LLC is a Cincinnati, Ohio based joint venture between GE Aviation and Honda Aero. GE Honda is headed by Bill Dwyer of GE Aviation and Atsukuni Waragai of Honda Aero...

 small turbofan project. GE also continued development of their own lines, introducing new civilian models like the GE90
General Electric GE90
General Electric GE90 is a family of high-bypass turbofan aircraft engines built by GE Aviation for the Boeing 777, with thrust ratings ranging from 74,000 to 115,000 lbf . It was first introduced in November 1995 on British Airways' 777s, and is available only on the 777...

, and military designs like the General Electric F110
General Electric F110
-External links:* - The F110 Engine Family* - F110-GE-100 Gallery* - F110* - General Electric F110...

.

GE Aviation today

Then-GEAE (and competitor Rolls-Royce) were selected by Boeing
Boeing Commercial Airplanes
Boeing Commercial Airplanes designs, assembles, markets and sells large commercial jet aircraft and provides product-related maintenance and training to customers worldwide...

 to power its new 787. GE Aviation's offering is the GEnx
General Electric GEnx
The General Electric GEnx is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aviation for the Boeing 787 and 747-8...

, a development of the GE90. GE Aviation also has a two-year exclusivity on the Boeing 747-8
Boeing 747-8
The Boeing 747-8 is a wide-body jet airliner developed by Boeing Commercial Airplanes. Officially announced in 2005, the 747-8 is the fourth-generation Boeing 747 version, with lengthened fuselage, redesigned wings and improved efficiency...

.

The Lynn facility continues to assemble jet engines for the United States
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...

 Department of Defense, subsidiary services and commercial operators. Engines assembled at this plant include the F404, F414
General Electric F414
The General Electric F414 is an afterburning turbofan engine in the 22,000 lbf thrust class produced by GE Aviation. The F414 was developed from GE's widely-used F404 turbofan for use in the Boeing F/A-18E/F Super Hornet.-Origin:...

, T700, and CFE738. The plant at Lynn also produces the -3 and -8 variants of the CF34 regional jet engine, the CT7 commercial turboprop power plant and commercial versions of the T700 turboshaft whichare also called the CT7.

The Evendale plant conducts final assembly for the CFM International's
CFM International
CFM International is a joint venture between GE Aviation, a division of General Electric of the United States and Snecma, a division of Safran of France...

 CFM56
CFM International CFM56
The CFM International CFM56 series is a family of high-bypass turbofan aircraft engines made by CFM International , with a thrust range of . CFMI is a 50–50 joint-owned company of SNECMA, France and GE Aviation , USA. Both companies are responsible for producing components and each has its own...

, CF6
General Electric CF6
The General Electric CF6 is a family of high-bypass turbofan engines produced by GE Aviation. A development of the first high-power high-bypass jet engine available, the TF39, the CF6 powers a wide variety of civilian airliners. The basic engine core formed the basis for the LM2500, LM5000, and...

, as well as LM6000
General Electric LM6000
-External links:*...

, and LM2500
General Electric LM2500
-External links:* .* *...

 power plants.

The Durham, North Carolina
Durham, North Carolina
Durham is a city in the U.S. state of North Carolina. It is the county seat of Durham County and also extends into Wake County. It is the fifth-largest city in the state, and the 85th-largest in the United States by population, with 228,330 residents as of the 2010 United States census...

 facility conducts final assembly for the GE90
General Electric GE90
General Electric GE90 is a family of high-bypass turbofan aircraft engines built by GE Aviation for the Boeing 777, with thrust ratings ranging from 74,000 to 115,000 lbf . It was first introduced in November 1995 on British Airways' 777s, and is available only on the 777...

 and CF34 power plants. Crucial parts for these engines are crafted in secondary GE Aviation facilities, such as those in Bromont, Quebec
Bromont, Quebec
Bromont is a city in southwestern Quebec in Canada, 75 kilometres east of Montreal on Autoroute 10, bordering the Eastern Townships at the base of Mount Brome . The population as of the Canada 2006 Census was 6,049....

; Hooksett, New Hampshire
Hooksett, New Hampshire
Hooksett is a town in Merrimack County, New Hampshire, United States. The population was 13,451 at the 2010 census. The town is located between Manchester, the state's largest city, and Concord, the state capital...

; Wilmington, North Carolina
Wilmington, North Carolina
Wilmington is a port city in and is the county seat of New Hanover County, North Carolina, United States. The population is 106,476 according to the 2010 Census, making it the eighth most populous city in the state of North Carolina...

; Madisonville, Kentucky
Madisonville, Kentucky
Madisonville is a city in Hopkins County, Kentucky, United States of the Western Coal Field region, located along US 41 and The Pennyrile Parkway. The population was 19,307 at the 2000 census. It is the county seat of Hopkins County. The city was named in honor of U.S...

 and Rutland, Vermont; where the engine blades and vanes are manufactured.

Smiths Group
Smiths Group
Smiths Group plc is a global engineering company headquartered in London, United Kingdom. It has operations in over 50 countries and employs around 23,550 staff....

 and General Electric
General Electric
General Electric Company , or GE, is an American multinational conglomerate corporation incorporated in Schenectady, New York and headquartered in Fairfield, Connecticut, United States...

 announced on January 15, 2007 that the former was divesting Smiths Aerospace
Smiths Aerospace
GE Aviation Systems .Smiths Aerospace was formerly one of four business units of Smiths Group plc., an engineering company and constituent of the FTSE 100 share index. However, it was announced on January 15, 2007 that Smiths Group was divesting Smiths Aerospace to General Electric for US $4.8...

 to the latter for GBP£
Pound sterling
The pound sterling , commonly called the pound, is the official currency of the United Kingdom, its Crown Dependencies and the British Overseas Territories of South Georgia and the South Sandwich Islands, British Antarctic Territory and Tristan da Cunha. It is subdivided into 100 pence...

2.4 billion (US$
United States dollar
The United States dollar , also referred to as the American dollar, is the official currency of the United States of America. It is divided into 100 smaller units called cents or pennies....

 4.8 billion). GE Aviation closed the transaction on May 4, 2007. Smiths Aerospace, which was an important supplier, became an operating subsidiary of GE Aviation known as GE Aviation Systems. This acquisition will reportedly give the combined unit the clout to resist pricing pressures from its two largest customers, Boeing Commercial Airplanes
Boeing Commercial Airplanes
Boeing Commercial Airplanes designs, assembles, markets and sells large commercial jet aircraft and provides product-related maintenance and training to customers worldwide...

 and EADS/Airbus
Airbus
Airbus SAS is an aircraft manufacturing subsidiary of EADS, a European aerospace company. Based in Blagnac, France, surburb of Toulouse, and with significant activity across Europe, the company produces around half of the world's jet airliners....

. Analysts further assert that it enables General Electric to acquire assets similar to those it desired in its failed bid for Honeywell
Honeywell
Honeywell International, Inc. is a major conglomerate company that produces a variety of consumer products, engineering services, and aerospace systems for a wide variety of customers, from private consumers to major corporations and governments....

 in 2000.

Along with the purchase of Smiths Aerospace, the purchase included opening the first University Development Center
University Development Center
A University Development Center is an educational-work co-operational program that was founded by Smiths Aerospace in 2005, which was acquired in 2007 by GE Aviation, in Houghton, Michigan. The program employs students from the local Michigan Technological University to work on programs that the...

 in Houghton, Michigan, in the effort to work with University Students to provide training in engineering and software development. The program has performed well and GE Aviation has announced further UDC openings at Kansas State University
Kansas State University
Kansas State University, commonly shortened to K-State, is an institution of higher learning located in Manhattan, Kansas, in the United States...

.

In July 2008, governments in the Persian Gulf
Persian Gulf
The Persian Gulf, in Southwest Asia, is an extension of the Indian Ocean located between Iran and the Arabian Peninsula.The Persian Gulf was the focus of the 1980–1988 Iran-Iraq War, in which each side attacked the other's oil tankers...

 reached agreements with GE to expand engine maintenance operations there. The Wall Street Journal reported that Mubadala Development Company
Mubadala Development Company
Mubadala Development Company PJSC was established in October 2002 as a Public Joint Stock Company and is a wholly owned investment vehicle of the Government of Abu Dhabi, in the United Arab Emirates....

, which owns Abu Dhabi Aircraft Technologies, an overhaul and maintenance company, signed an agreement worth an estimated $8 billion with GE; Abu Dhabi Aircraft Technologies will maintain and overhaul GE engines used in commercial aircraft purchased by airlines based in the Persian Gulf.

Turbojets

  • J31
    General Electric J31
    |-See also:...

     (I-A and I-16) (1942–45)
  • J33 (I-40), with later production by Allison (1945)
  • J35
    Allison J35
    |-See also:-External links:*...

    , with later production by Allison (1946)
  • J47
    General Electric J47
    |-Specifications :-Nuclear-powered version – The X39:In the 1950s, interest in the development of nuclear-powered aircraft led GE to experiment with two nuclear-powered gas turbine designs, one based on the J47, and another new and much larger engine called the X211.The design based on the J47...

     (1948)
  • J79/CJ805 (1955)
  • J85
    General Electric J85
    -External links:**...

    /CJ610
    General Electric CJ610
    |-See also:-External links:*...

     (1958)

Light and low-bypass turbofans

  • CF700
    General Electric CJ610
    |-See also:-External links:*...

  • General Electric F101
    General Electric F101
    -External links:**...

     (1970)
  • General Electric TF34/CF34 (1972)
  • F404 (1978)
  • F110
    General Electric F110
    -External links:* - The F110 Engine Family* - F110-GE-100 Gallery* - F110* - General Electric F110...

     (1984)
  • F118
    General Electric F118
    |-See also:-External links:* - The F110 Engine Family...

     (1989)
  • YF120
    General Electric YF120
    |-See also:-References:* Technology News Flight International 23/09/03 .-External links:* . Press release GE Aviation .*...

    , cancelled, basis for F136 (1989)
  • CFE738, with Honeywell
    Honeywell
    Honeywell International, Inc. is a major conglomerate company that produces a variety of consumer products, engineering services, and aerospace systems for a wide variety of customers, from private consumers to major corporations and governments....

     (?)
  • F412 (cancelled)
  • F414
    General Electric F414
    The General Electric F414 is an afterburning turbofan engine in the 22,000 lbf thrust class produced by GE Aviation. The F414 was developed from GE's widely-used F404 turbofan for use in the Boeing F/A-18E/F Super Hornet.-Origin:...

     (1995)
  • F136
    General Electric/Rolls-Royce F136
    The General Electric/Rolls-Royce F136 is an advanced turbofan engine being developed by General Electric and Rolls-Royce plc for the Lockheed Martin F-35 Lightning II.-Development:...

    , with Rolls-Royce (?)
  • HF120, with Honda (2003?)

High-bypass turbofans

  • General Electric TF39
    General Electric TF39
    |-See also:-External links:*...

     (1968)
  • General Electric CF6
    General Electric CF6
    The General Electric CF6 is a family of high-bypass turbofan engines produced by GE Aviation. A development of the first high-power high-bypass jet engine available, the TF39, the CF6 powers a wide variety of civilian airliners. The basic engine core formed the basis for the LM2500, LM5000, and...

     (1970)
  • CFM56/F108
    CFM International CFM56
    The CFM International CFM56 series is a family of high-bypass turbofan aircraft engines made by CFM International , with a thrust range of . CFMI is a 50–50 joint-owned company of SNECMA, France and GE Aviation , USA. Both companies are responsible for producing components and each has its own...

    , with Snecma
    Snecma
    Snecma is a major French manufacturer of engines for commercial and military aircraft, and for space vehicles. The name is an acronym for Société Nationale d'Étude et de Construction de Moteurs d'Aviation .In 2005, the Snecma group, which included Snecma ,...

     (1982)
  • GE90
    General Electric GE90
    General Electric GE90 is a family of high-bypass turbofan aircraft engines built by GE Aviation for the Boeing 777, with thrust ratings ranging from 74,000 to 115,000 lbf . It was first introduced in November 1995 on British Airways' 777s, and is available only on the 777...

     (1995)
  • GP7200
    Engine Alliance GP7200
    |-See also:-References :* -External links :* , Engine Alliance* , GE-Aviation* , Pratt & Whitney...

    , with Pratt & Whitney
    Pratt & Whitney
    Pratt & Whitney is a U.S.-based aerospace manufacturer with global service operations. It is a subsidiary of United Technologies Corporation . Pratt & Whitney's aircraft engines are widely used in both civil aviation and military aviation. Its headquarters are in East Hartford, Connecticut, USA...

     (2006)
  • GEnx
    General Electric GEnx
    The General Electric GEnx is an advanced dual rotor, axial flow, high-bypass turbofan jet engine in production by GE Aviation for the Boeing 787 and 747-8...

     (2007)

Turboprops/propfans


Turboshafts

  • T58
    General Electric T58
    |-See also:-References:* and...

     (1953)
  • T64
    General Electric T64
    -External links:* *...

     (1964)
  • T700/CT7 (1978)
  • General Electric GE38 (2011)

Industrial aero-derivative and marine propulsion

  • LM500
    General Electric LM500
    -External links:*...

     - Derived from GE TF34
  • LM1600
    General Electric LM1600
    -External links:* ....

     - Derived from GE F404
  • LM2500
    General Electric LM2500
    -External links:* .* *...

     - Derived from GE TF39 and CF6-50
  • LM6000
    General Electric LM6000
    -External links:*...

     - Derived from GE CF6-80
  • LMS100
    General Electric LMS100
    -External links:*...

    - Derived from GE LM6000 and Frame Gas Turbine

External links

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