Age, Biography and Wiki

Leonard Greene was born on 8 June, 1918 in New York City, US, is an American inventor and aerodynamics engineer. Discover Leonard Greene's Biography, Age, Height, Physical Stats, Dating/Affairs, Family and career updates. Learn How rich is he in this year and how he spends money? Also learn how he earned most of networth at the age of 88 years old?

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Occupation Inventor, Aerodynamics Engineer
Age 88 years old
Zodiac Sign Gemini
Born 8 June, 1918
Birthday 8 June
Birthplace New York City, US
Date of death 30 November, 2006
Died Place Mamaroneck, New York, US
Nationality United States

We recommend you to check the complete list of Famous People born on 8 June. He is a member of famous Engineer with the age 88 years old group.

Leonard Greene Height, Weight & Measurements

At 88 years old, Leonard Greene height not available right now. We will update Leonard Greene's Height, weight, Body Measurements, Eye Color, Hair Color, Shoe & Dress size soon as possible.

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Dating & Relationship status

He is currently single. He is not dating anyone. We don't have much information about He's past relationship and any previous engaged. According to our Database, He has no children.

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Leonard Greene Net Worth

His net worth has been growing significantly in 2023-2024. So, how much is Leonard Greene worth at the age of 88 years old? Leonard Greene’s income source is mostly from being a successful Engineer. He is from United States. We have estimated Leonard Greene's net worth, money, salary, income, and assets.

Net Worth in 2024 $1 Million - $5 Million
Salary in 2024 Under Review
Net Worth in 2023 Pending
Salary in 2023 Under Review
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Source of Income Engineer

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Timeline

1918

Leonard Michael Greene (June 8, 1918 – November 30, 2006) was an American inventor and aerodynamics engineer who held more than 200 patents, many of which are aviation-related.

He is most well known for his contributions to aviation technology, including his invention, the Aircraft Stall Warning device, which warns pilots when a deadly aerodynamic stall is imminent.

Leonard M. Greene was born in New York City on June 8, 1918.

Max Greene, his chemist father, and Lyn Furman Greene, his artist mother, encouraged their son to create his own toys.

His parents made him a gift of their old stove, which he could take apart.

Greene experienced poverty as a youth during the Depression and never forgot it.

When Leonard was 16, his father had passed away.

Greene first married Beverly Kaufman, with whom he had three children; this, however, ended in divorce.

Then, he adopted four children of his second wife, Phyllis Saks Greene, with whom he had another child.

1938

Leonard Greene graduated in 1938 from the City College of New York with a B.S. in Chemistry, and went on to receive a M.S. in aeronautical engineering.

He received a pilot license at the age of 19 and later did postgraduate work in aeronautics at the Guggenheim School of Aeronautics at New York University.

1940

In the mid-1940s, Greene developed the first practical way to warn the pilot of the aerodynamic stall.

His first design and apparatus included threaded bolts, a bicycle horn and other odd components, all powered by flashlight batteries.

1944

Greene filed his device for a patent in 1944, and the patent was issued in 1949.

1946

To build the device, Greene established the Safe Flight Instrument Corporation in 1946.

Apart from his inventive life, Greene also served as the founder and president of the Institute for Socioeconomic Studies, a think tank to address issues such as poverty and social awareness.

Additionally, he co-founded the Corporate Angel Network, a charitable organization that flies patients in corporate aircraft.

In order to develop his design, Greene founded the Safe Flight Instrument Corporation in White Plains, NY, in 1946.

There, he refined and marketed the stall warning indicator.

Basically, his device sounded an alert when the plane was in danger of not having enough lift to stay flying.

This alert would allow time for the pilot to take corrective measures.

Since its invention, this device became standard equipment for all aircraft and has also helped reduce the number of accidents due to stalling.

The Stall Warning Indicator was called “the greatest lifesaver since the invention of the parachute”[14] by the Saturday Evening Post and the device received the Flight Safety Foundation’s first Air Safety Award.

After developing the Stall Warning Device, Greene continued developing aviation inventions.

1956

He and his engineering staff at Safe Flight went on to conceive devices now commonplace in aircraft, including an automatic throttle system in 1956 and a wind-shear warning system that warns a pilot if an aircraft enters a dangerous microburst and provides escape guidance.

1965

Phyllis Saks Greene, an heiress of the Saks Fifth Avenue department store family, died in 1965.

1967

Greene's third marriage was to Joyce Teck Meller in 1967, which also ended up in divorce in 2005.

1970

He developed the latter in the late 1970s after a series of wind-shear-related crashes that claimed hundreds of lives.

1977

In 1977, he was awarded the degree of Doctor of Civil Law honoris causa by Pace University.

During World War II, Greene joined the Grumman Aircraft Corporation in Bethpage, NY, as an aerodynamicist and engineering test pilot.

There he witnessed an aircraft crash caused by stall.

In aviation, a stall occurs when the airflow over the wings is no longer sufficient to provide lift – essentially, a stalled wing ceases to function.

This happens when the wing exceeds its critical angle of attack.

Greene realized that the accident could have been avoided if the pilot had been warned of an imminent stall.

Aerodynamic stalls caused the majority of aviation deaths at the time.

1991

In 1991, he was inducted into the National Inventors Hall of Fame.

2001

A son from the second marriage, Donald Greene, died September 11, 2001, abroad United Airlines Flight 93 when it crashed in Pennsylvania.

In his 2001 book Inventorship: The Art of Innovation, Greene described finding "creative ideas in the simplest things."8 To address a key problem of supersonic aircraft – window-shattering sonic booms when they break the sound barrier – he turned to the earthworm for inspiration.

2006

Greene died on November 30, 2006, at the age of 88 in Mamaroneck, New York.

The cause was complications from lung cancer.