Grumman

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Grumman

Grumman Aircraft Engineering Corporation · Grumman Aerospace Corporation · Grumman Corporation

The Long Island ‘Iron Works’ started in a garage by a shy engineer who mortgaged his house — and went on to build the Hellcat, the Tomcat and the craft that landed men on the Moon.

1929Kurulan
Birleştirildi Northrop Grumman in 1994Durum
25Kayıtlardaki uçaklar
32Hava kuvvetleri bu tür uçakları kullanıyor.
Fotoğraf: 玄史生 / Wikimedia Commons (CC BY-SA 3.0)
ÜlkeAmerika Birleşik DevletleriKurulan1929-12-06KurucularLeroy Grumman, Leon “Jake” Swirbul, William Schwendler, Edmund Ward Poor, E. Clinton TowlMerkez OfisBethpage, Long Island, New YorkDurumBirleştirildi Northrop Grumman in 1994
Hikaye

Grumman: the company and the aircraft that made its name

A mortgage and a garage in Baldwin

In 1929 Keystone bought the Loening aircraft company and announced it was leaving Long Island for Pennsylvania. Its general manager, a quiet Cornell engineer named Leroy Grumman, refused to go. He mortgaged his house for $16,950, his colleague Jake Swirbul’s mother borrowed $6,000 from her employers, and with William Schwendler, Ed Poor and Clint Towl they registered a company on 6 December 1929. On 2 January 1930 they moved into an abandoned car showroom in Baldwin that had once been the Cox-Klemin aircraft works. There were 18 people on the payroll. The first jobs were repairing Loening amphibians and welding aluminium truck bodies. The president and vice-president spent day one on their knees, sorting nuts and bolts.

The educated hunch

Grumman was almost not a pilot at all. A Navy medical board wrongly diagnosed him with flat feet; a clerical error then sent him to an MIT course for pilot trainees, and he kept quiet and earned his wings in 1918. That luck shaped the company. Grumman patented a retractable landing gear in 1932, and the Navy’s first Grumman fighter, the FF-1, carried his splayed wheels into its fuselage. Colleagues called him a master of the educated hunch. He found the pivot for the Sto-Wing, the folding wing that let carriers pack in far more fighters, by sticking paper clips into a soap eraser.

The Cats go to war

Then came the war, and the Cats. The F4F Wildcat held the line over the Pacific in 1942 while its successor was rushed into being: the F6F Hellcat first flew on 26 June 1942 and 12,275 were built in just over three years. Hellcats were credited with 5,163 kills in the Pacific, 56 per cent of all US Navy and Marine air victories, at a recorded cost of 270 Hellcats in air combat — a ratio of 19 to 1. The TBF Avenger torpedo bomber, 9,839 built, carried among its pilots a 20-year-old future president, George H. W. Bush. Demand was so great that General Motors set up its Eastern Aircraft Division to build three-quarters of all Wildcats and Avengers.

The Grumman Iron Works

Grumman had once insisted the firm should never grow beyond 250 people or it would lose control; his accountant had to tell him the payroll had already reached 256. By 1943 it employed 25,500. The rugged aircraft that poured out of Bethpage earned the company its nickname, the Grumman Iron Works, and the founders kept an odd discipline: Grumman and Swirbul shared one office and vowed never to leave it with a disagreement unresolved. In the summer of 1944 the shy founder borrowed a front-line Hellcat for a half-hour joyride; the test pilots fined him a dollar for landing with flaps down, and he paid five.

The craft that landed on the Moon

After the war Grumman stayed on the carriers with the Panther and Cougar jets, the S-2 Tracker and the Albatross amphibian, and branched out with the Ag Cat crop-duster and the Gulfstream I, a purpose-built business turboprop. Its greatest prize came on 7 November 1962: the contract for the Apollo Lunar Module. On 20 July 1969 the Long Island-built Eagle landed on the Moon. Six lunar modules touched down in all, and a seventh, Aquarius, kept the Apollo 13 crew alive after an explosion crippled their spacecraft. The company renamed itself Grumman Aerospace that year, and lost the Space Shuttle contract to Rockwell.

Tomcat, Hawkeye and the last fight

The 1960s and 1970s brought the A-6 Intruder, the E-2 Hawkeye radar picket, the EA-6B Prowler and the F-14 Tomcat, first flown on 21 December 1970 and made a film star by Top Gun. In 1981 the company fought off a hostile bid from LTV, with its own pension fund buying shares in a defence later tested in the courts. At its 1986 peak Grumman employed 23,000 people on Long Island. The end of the Cold War finished it: in 1994 Northrop paid $2.1 billion, topping a $1.9 billion offer from Martin Marietta, to create Northrop Grumman. Bethpage closed, and the Calverton hangars became film studios. The Hawkeye is still built today.

The final perfection of the aeroplane will be one of the greatest triumphs that man has ever gained over nature.Leroy Grumman · high school salutatory address, Huntington High School, 20 June 1911

Bir bakışta

Grumman in numbers

Şirket

Kısacası
Founded 1929

  • Registered 6 December 1929 by Leroy Grumman and four former Loening colleagues
  • Opened 2 January 1930 in a former car showroom in Baldwin, Long Island
  • Moved to Valley Stream (1931), Farmingdale (1932) and Bethpage (1937)
  • Renamed Grumman Aerospace Corporation in 1969

Üretme

En çok bilinen yönü
Hellcat ve Tomcat

  • Famous types: F4F Wildcat, F6F Hellcat, TBF Avenger, A-6 Intruder, E-2 Hawkeye, F-14 Tomcat
  • Prime contractor for the Apollo Lunar Module
  • Civil lines: Goose and Albatross amphibians, Ag Cat, Gulfstream I and II

Bugün

Şimdi
Part of Northrop Grumman

  • Bought by Northrop for $2.1 billion in 1994
  • Gulfstream business jet line sold in 1978 and now part of General Dynamics
  • E-2D Hawkeye still in production by Northrop Grumman

The Bethpage plant became offices and housing; Calverton became Grumman Studios and an industrial park.

Sayılar

Employees (wartime peak)
25,5001943
Employees on Long Island (Cold War peak)
23,0001986
Rank by value of US wartime production contracts
22nd
Hellcats built
12,2751942–1945
Hellcat air-to-air kills (Pacific)
5,163, about 19 to 1
Lunar modules landed on the Moon
6
Purchase price paid by Northrop
$2.1 billion1994
Bethpage site leased from the US Navy
6 million sq ft of buildings on 105 acres

uçak

Every notable Grumman aircraft

Photos: U.S. Coast Guard photo 26-G-03-17-43(4) / Wikimedia Commons (Public domain); US Navy (H.S. Fawcett) · Public domain; U.S. Navy · Public domain; US Navy · Public domain; U.S. Navy (public domain); Cameron11598 / Wikimedia Commons (CC BY-SA 4.0); U.S. Navy (80-G-12191) · Public domain; U.S. Navy · public domain; Regions / Wikimedia Commons (CC BY-SA 3.0); U.S. Army · public domain; US Air Force from USA / Wikimedia Commons (Public domain); NASA / DFRC / Larry Sammons · Public domain

Uçak Rol İlk uçuş İnşa edildi Durum Not
Grumman FF Two-seat carrier fighter 1931 116 Emekli First Grumman aircraft; retractable landing gear
Grumman F3F Carrier biplane fighter 1935 147 Emekli
Grumman J2F Duck Yardımcı amfibi 1936 584 Emekli Total includes Columbia-built aircraft
Grumman G-21 Goose Amphibian 1937 345 Emekli
Grumman F4F Wildcat Uçak gemisi savaş uçağı 1937 7,885 Emekli 5,280 built as FM variants by GM’s Eastern Aircraft Division
Grumman TBF Avenger Torpido bombardıman uçağı 1941 9,839 Emekli Nearly three-quarters built by Eastern Aircraft as the TBM
Grumman F6F Hellcat Uçak gemisi savaş uçağı 1942 12,275 Emekli Credited with 5,163 kills in the Pacific
Grumman F7F Tigercat Twin-engine fighter 1943 364 Emekli
Grumman F8F Bearcat Uçak gemisi savaş uçağı 1944 1,265 Emekli
Grumman HU-16 Albatross Arama ve kurtarma amfibisi 1947 466 Emekli
Grumman F9F Panther Uçak gemisi jet savaş uçağı 1947 1,385 Emekli Grumman’s first jet
Grumman F9F / F-9 Cougar Swept-wing carrier fighter 1951 1,988 Emekli
Grumman S-2 İzleyici Anti-submarine aircraft 1952 1,284 Emekli
Grumman F-11 Tiger Supersonic carrier fighter 1954 199 Emekli Flown by the Blue Angels until 1969
Grumman Ag Cat Agricultural biplane 1957 more than 2,450 Emekli Schweizer built 2,455 under contract through 1981
Grumman Gulfstream I Business turboprop 1958 200 Emekli
Grumman OV-1 Mohawk Battlefield reconnaissance 1959 380 Emekli
Grumman A-6 Intruder Her türlü hava koşulunda saldırı 1960 693 Emekli
Grumman E-2 Hawkeye Havadan erken uyarı 1960 313 Üretim aşamasında Total includes 88 E-2D built by Northrop Grumman
Grumman C-2 Greyhound Carrier on-board delivery 1964 56 Emekli 17 C-2A plus 39 C-2A(R)
Grumman Gulfstream II Business jet 1966 256 Hizmette
Grumman EA-6B Prowler Elektronik savaş 1968 170 Emekli Last flown by the US Marine Corps, March 2019
Grumman F-14 Tomcat Carrier fleet-defence fighter 1970 712 Hizmette Retired by the US Navy in 2006; still operated by Iran
Grumman X-29 Forward-swept-wing research aircraft 1984 2 Emekli
Apollo Lunar Module Crewed lunar lander 13 to 15 Emekli Build count differs between sources; six landed on the Moon; Aquarius served as Apollo 13’s lifeboat

Onları kim uçuruyor?

Grumman aircraft in the world’s air forces

32 air forces in the Order of Battle fly or flew Grumman types. İkisinden birinin hala kullanımda olan bir tane daha var.

Hava kuvvetleri Hizmette Eskiden uçuruluyordu
Kamerun Hava Kuvvetleri Grumman Gulfstream III
İran İslam Cumhuriyeti Hava Kuvvetleri Grumman F-14A Tomcat
Arjantin Ordusu Havacılığı Grumman OV-1D Mohawk
Arjantin Deniz Havacılığı Grumman S-2A, S-2E and IAI S-2T Turbo Tracker, Grumman F9F Panther, Grumman F9F Cougar (TF-9J), Grumman J2F Duck
Brezilya Hava Kuvvetleri Grumman S-2 Tracker (P-16)
Kanada Deniz ve Kara Kuvvetleri Havacılığı Grumman Avenger AS.3 (TBM-3E), Grumman Avenger AEW Mk 3W2, Grumman CS2F-1 İzleyici, Grumman Avenger, HMS Nabob, Grumman Wildcat and Fairey Barracuda, HMS Zımba
Kanada Devlet Hava Hizmetleri Noorduyn Norseman, Grumman Goose, DHC-2 Beaver and DHC-3 Otter, Grumman CS2F İzleyici
Filo Hava Kuvvetleri Grumman Martlet (F4F Wildcat), Grumman Hellcat, Grumman Yenilmez
Filo Hava Kuvvetleri (Avustralya Kraliyet Donanması) Grumman S-2E and S-2G Tracker
Fransız Deniz Havacılığı Grumman F6F Hellcat, Grumman TBM Avenger
Fransız Devlet Hava Hizmetleri Grumman S-2 Tracker / Conair Turbo Firecat
Alman Deniz Havacılığı Grumman HU-16 Albatross
Yunan Hava Kuvvetleri Grumman HU-16B Albatross
Hellenic Navy Air Service Grumman HU-16B Albatross
Icelandic Coast Guard Aviation Department Grumman Goose
İtalyan Hava Kuvvetleri Grumman HU-16A Albatross ve S-2F Tracker
Japonya Deniz Öz Savunma Kuvvetleri havacılığı Grumman S2F-1 Tracker, Grumman TBM Avenger
Çin Cumhuriyeti Hava Kuvvetleri Grumman S-2 İzleyici
Republic of China Navy aviation Grumman S-2T Turbo Tracker
Güney Kore Cumhuriyeti Deniz Kuvvetleri Havacılığı (Deniz Hava Komutanlığı) Grumman S-2 İzleyici
Singapur Cumhuriyeti Hava Kuvvetleri Grumman E-2C Hawkeye
Kanada Kraliyet Hava Kuvvetleri Grumman CSR-110 Albatross
Yeni Zelanda Kraliyet Hava Kuvvetleri Grumman TBF-1 Avenger
Norveç Kraliyet Hava Kuvvetleri Grumman HU-16 Albatross
Tayland Kraliyet Hava Kuvvetleri Grumman F8F Bearcat
Tayland Kraliyet Donanması Hava Tümeni Grumman HU-16D Albatross, Grumman S-2 İzleyici
Togo Hava Kuvvetleri Grumman Gulfstream II
Turkish Naval Aviation Grumman S-2E and S-2A Tracker
Amerika Birleşik Devletleri Ordusu Havacılık Şubesi Grumman OV-1 Mohawk
Amerika Birleşik Devletleri Sahil Güvenlik Havacılığı Grumman HU-16E Albatross (UF-1G/2G), Grumman E-2C Hawkeye, Grumman J4F Widgeon, JRF Goose and J2F Duck
Amerika Birleşik Devletleri Deniz Piyadeleri Havacılığı Grumman EA-6B Prowler, Grumman A-6E Intruder, Grumman F9F Panther, Grumman F4F Wildcat
Amerika Birleşik Devletleri Deniz Havacılığı Grumman C-2A Greyhound, Grumman F-14A/B/D Tomcat, Grumman A-6 Intruder, Grumman F9F Panther, Grumman F6F Hellcat, Grumman F4F Wildcat ve 1 tane daha

Yerler, insanlar, kayıtlar

Where Grumman built, who led it, what it achieved

Fabrikalar

  • Baldwin garage · Baldwin, Long Island — Former Cox-Klemin works, first home from January 1930
  • Valley Stream and Farmingdale · Long Island, New York — Successive homes in 1931 and 1932
  • Bethpage · Bethpage, New York — Headquarters and main plant from 1937 on land leased from the US Navy; later converted to offices and housing
  • Calverton · Calverton, New York — Testing and final assembly at the 6,000-acre Naval Weapons Station; now Grumman Studios and an industrial park

İnsanlar

  • Leroy Randle Grumman · co-founder, president 1939–1947, chairman 1947–1966 — 1895–1982; Naval Aviator No. 1216
  • Leon “Jake” Swirbul · co-founder, president 1947–1960
  • William Schwendler · co-founder, engineer
  • Edmund Ward Poor · co-founder, former Loening business manager
  • E. Clinton Towl · co-founder; president 1960–1967, chairman 1966–1976
  • Joseph G. Gavin Jr. · president 1976–1985
  • John Cocks Bierwirth · chairman 1976–1988 — Led the defence against LTV’s 1981 bid

Rekorlar ve ilkler

  • Hellcat: credited with 5,163 Pacific kills, 56 per cent of US Navy and Marine air victories of WWII
  • Prime contractor for the first crewed spacecraft to land on the Moon, Apollo 11, 1969
  • Largest corporate employer on Long Island for much of the Cold War
  • X-29: forward-swept-wing technology demonstrator, first flight 1984

Zaman çizelgesi

Grumman, year by year

1929

Grumman Aircraft Engineering Corporation registered

1930

Company opens in a former car showroom in Baldwin

1931

First flight of the FF-1, the first Grumman aircraft

1932

Leroy Grumman granted his retractable landing gear patent; move to Farmingdale

1937

Move to Bethpage; first flights of the Goose and the F4F Wildcat

1942

First flight of the F6F Hellcat

1943

Employment reaches 25,500

1947

First flight of the F9F Panther, Grumman’s first jet

1958

First flight of the Gulfstream I business turboprop

1960

First flight of the A-6 Intruder

1960

First flight of the E-2 Hawkeye

1962

Grumman wins the Apollo Lunar Module contract

1969

Renamed Grumman Aerospace Corporation; Apollo 11 lands on the Moon

1970

First flight of the F-14 Tomcat

1978

Gulfstream line sold to American Jet Industries

1981

Hostile takeover bid from LTV defeated

1986

Long Island employment peaks at 23,000

1994

Northrop buys Grumman for $2.1 billion, forming Northrop Grumman



Sorular ve Cevaplar

Everything people ask about Grumman

Who founded Grumman?
Leroy Grumman, a former Navy pilot and Loening general manager, founded the company on Long Island in December 1929 with Jake Swirbul, William Schwendler, Ed Poor and Clint Towl.
Why was Grumman called the Iron Works?
Grumman aircraft were known for being rugged and reliable, especially Navy fighters that survived heavy combat damage, so the company was nicknamed the Grumman Iron Works.
Did Grumman build the Apollo Lunar Module?
Yes. Grumman won the contract in November 1962 and built the lunar modules at Bethpage. Six landed on the Moon, starting with Apollo 11 in July 1969.
What happened to Grumman?
Northrop bought Grumman in 1994 for $2.1 billion, outbidding Martin Marietta, and the combined company became Northrop Grumman. Most Long Island facilities were closed.
What were the Grumman Cats?
Grumman named its Navy fighters after cats: the Wildcat, Hellcat, Tigercat, Bearcat, Panther, Cougar, Tiger and Tomcat.
Who built Gulfstream jets originally?
Grumman. The Gulfstream I turboprop flew in 1958 and the Gulfstream II jet in 1966; Grumman sold the line in 1978 and it became Gulfstream Aerospace.