غرومان
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.
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.
Grumman in numbers
الشركة
- باختصار
- تأسست عام 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
إنتاج
- اشتهر بـ
- Hellcat and 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
اليوم
- الآن
- 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.
الأرقام
- 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
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
| الطائرات | دور | الرحلة الأولى | تم البناء | حالة | ملحوظة |
|---|---|---|---|---|---|
| Grumman FF | Two-seat carrier fighter | 1931 | 116 | متقاعد | First Grumman aircraft; retractable landing gear |
| Grumman F3F | Carrier biplane fighter | 1935 | 147 | متقاعد | |
| Grumman J2F Duck | برمائي متعدد الاستخدامات | 1936 | 584 | متقاعد | Total includes Columbia-built aircraft |
| Grumman G-21 Goose | برمائي | 1937 | 345 | متقاعد | |
| غرومان إف 4 إف وايلدكات | مقاتلة حاملة طائرات | 1937 | 7,885 | متقاعد | 5,280 built as FM variants by GM’s Eastern Aircraft Division |
| Grumman TBF Avenger | قاذفة طوربيدات | 1941 | 9,839 | متقاعد | Nearly three-quarters built by Eastern Aircraft as the TBM |
| غرومان إف 6 إف هيلكات | مقاتلة حاملة طائرات | 1942 | 12,275 | متقاعد | Credited with 5,163 kills in the Pacific |
| Grumman F7F Tigercat | Twin-engine fighter | 1943 | 364 | متقاعد | |
| غرومان إف 8 إف بيركات | مقاتلة حاملة طائرات | 1944 | 1,265 | متقاعد | |
| غرومان إتش يو-16 ألباتروس | البحث والإنقاذ للبرمائيات | 1947 | 466 | متقاعد | |
| غرومان إف 9 إف بانثر | Carrier jet fighter | 1947 | 1,385 | متقاعد | Grumman’s first jet |
| Grumman F9F / F-9 Cougar | Swept-wing carrier fighter | 1951 | 1,988 | متقاعد | |
| غرومان إس-2 تراكر | طائرات مضادة للغواصات | 1952 | 1,284 | متقاعد | |
| Grumman F-11 Tiger | Supersonic carrier fighter | 1954 | 199 | متقاعد | Flown by the Blue Angels until 1969 |
| Grumman Ag Cat | Agricultural biplane | 1957 | more than 2,450 | متقاعد | Schweizer built 2,455 under contract through 1981 |
| Grumman Gulfstream I | Business turboprop | 1958 | 200 | متقاعد | |
| Grumman OV-1 Mohawk | Battlefield reconnaissance | 1959 | 380 | متقاعد | |
| غرومان إيه-6 إنترودر | هجوم في جميع الأحوال الجوية | 1960 | 693 | متقاعد | |
| Grumman E-2 Hawkeye | نظام الإنذار المبكر المحمول جواً | 1960 | 313 | قيد الإنتاج | Total includes 88 E-2D built by Northrop Grumman |
| Grumman C-2 Greyhound | Carrier on-board delivery | 1964 | 56 | متقاعد | 17 C-2A plus 39 C-2A(R) |
| غرومان غلف ستريم 2 | طائرة رجال الأعمال | 1966 | 256 | في الخدمة | |
| Grumman EA-6B Prowler | Electronic warfare | 1968 | 170 | متقاعد | Last flown by the US Marine Corps, March 2019 |
| Grumman F-14 Tomcat | Carrier fleet-defence fighter | 1970 | 712 | في الخدمة | Retired by the US Navy in 2006; still operated by Iran |
| Grumman X-29 | Forward-swept-wing research aircraft | 1984 | 2 | متقاعد | |
| Apollo Lunar Module | Crewed lunar lander | 13 to 15 | متقاعد | Build count differs between sources; six landed on the Moon; Aquarius served as Apollo 13’s lifeboat |
Grumman aircraft in the world’s air forces
32 air forces in the Order of Battle fly or flew Grumman types. اثنان منهم لا يزال لديهم واحد قيد الخدمة.
Where Grumman built, who led it, what it achieved
المصانع
- 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
الناس
- 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
الأرقام القياسية والأولويات
- 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
Grumman, year by year
Grumman Aircraft Engineering Corporation registered
Company opens in a former car showroom in Baldwin
First flight of the FF-1, the first Grumman aircraft
Leroy Grumman granted his retractable landing gear patent; move to Farmingdale
Move to Bethpage; first flights of the Goose and the F4F Wildcat
First flight of the F6F Hellcat
Employment reaches 25,500
First flight of the F9F Panther, Grumman’s first jet
First flight of the Gulfstream I business turboprop
First flight of the A-6 Intruder
First flight of the E-2 Hawkeye
Grumman wins the Apollo Lunar Module contract
Renamed Grumman Aerospace Corporation; Apollo 11 lands on the Moon
First flight of the F-14 Tomcat
Gulfstream line sold to American Jet Industries
Hostile takeover bid from LTV defeated
Long Island employment peaks at 23,000
Northrop buys Grumman for $2.1 billion, forming Northrop Grumman
Everything people ask about Grumman
Who founded Grumman?
Why was Grumman called the Iron Works?
Did Grumman build the Apollo Lunar Module?
What happened to Grumman?
What were the Grumman Cats?
Who built Gulfstream jets originally?
Around Grumman
كل حقيقة، تم التحقق منها
- Grumman — Wikipedia
- Leroy Grumman — Wikipedia
- Grumman F4F Wildcat — Wikipedia
- Grumman F6F Hellcat — Wikipedia
- Grumman TBF Avenger — Wikipedia
- Grumman F-14 Tomcat — Wikipedia
- Apollo Lunar Module — Wikipedia
- Grumman A-6 Intruder — Wikipedia
- Grumman E-2 Hawkeye — Wikipedia
- Grumman EA-6B Prowler — Wikipedia
- Grumman F9F Panther — Wikipedia
- Grumman F-9 Cougar — Wikipedia
- Grumman S-2 Tracker — Wikipedia
- Grumman HU-16 Albatross — Wikipedia
- Grumman G-21 Goose — Wikipedia
- Grumman F8F Bearcat — Wikipedia
- Grumman F7F Tigercat — Wikipedia
- Grumman FF — Wikipedia
- Grumman F-11 Tiger — Wikipedia
- Grumman OV-1 Mohawk — Wikipedia
- Grumman C-2 Greyhound — Wikipedia
- Grumman Gulfstream I — Wikipedia
- Grumman Gulfstream II — Wikipedia
- Grumman Ag Cat — Wikipedia
- Grumman X-29 — Wikipedia
- Grumman J2F Duck — Wikipedia
- Grumman F3F — Wikipedia
- Donovan v. Bierwirth — Wikipedia
تم التحقق بتاريخ 2026-10-03.