Sands Point Seaplane Base: A History of Aviation in Port Washington
Port Washington has served as a vital hub for maritime aviation since the early 20th century. Over the decades, this location has evolved through various names and operators, transitioning from a pioneering corporate airport to a critical link in transatlantic travel, and eventually becoming the Sands Point Seaplane Base.
The Early Years and Foundation
The origins of the facility date back to the early 1900s. In its early history, the site was known by several names, including the Port Washington Seaplane Base, the New York Seaplane Base, and the Tom's Point Seaplane Base.
A significant milestone occurred on September 14, 1929, when the American Aeronautical Corporation laid the cornerstone for the New York Seaplane Airport. This development represented one of the earliest iterations of the site that would eventually evolve into the modern Sands Point Seaplane Base.

The Pan American Era and Transatlantic Flight
The facility gained international prominence in the 1930s. In 1934, the American Aeronautical Corporation sold the facility to Pan American World Airways (Pan Am). Under Pan Am's ownership, the base became a cornerstone of global connectivity.
Between 1939 and 1940, Port Washington served as the primary New York base for Pan Am's transatlantic flights utilizing the Boeing 314, a large flying boat designed for long-distance ocean crossings. To support these massive aircraft, Pan Am operated hangars at Tom's Point, located on Manhasset Isle within the Incorporated Village of Manorhaven along the shores of Manhasset Bay.
This era of transatlantic operations continued until the opening of the Marine Air Terminal at LaGuardia Airport, which prompted Pan Am to relocate its seaplane operations.
Post-War Transition and Modern Activation
Following the departure of Pan American, the facility entered a new chapter with the arrival of Grumman. The aerospace manufacturer became a major tenant, utilizing the base as a dedicated facility for its seaplane development and operations.
The current version of the seaplane base was officially activated in May 1948. This transition coincided with the abandonment of the original terminal area and hangar that had served the site during its earlier years.
Key Facts
- Established: Early 20th century.
- Key Former Names: Port Washington Seaplane Base, New York Seaplane Base, and Tom's Point Seaplane Base.
- Cornerstone Date: September 14, 1929.
- Major Operators: American Aeronautical Corporation, Pan American World Airways, and Grumman.
- Notable Aircraft: The Boeing 314 transatlantic flying boat.
- Modern Activation: May 1948.
| Period/Date | Event/Operator | Significance |
|---|---|---|
| September 14, 1929 | American Aeronautical Corp. | Cornerstone laid for New York Seaplane Airport. |
| 1934 | Pan American World Airways | Pan Am purchases the facility. |
| 1939–1940 | Pan Am (Boeing 314) | Served as the NY base for transatlantic flights. |
| Post-Pan Am | Grumman | Used as a facility for Grumman seaplanes. |
| May 1948 | Sands Point Seaplane Base | Current iteration activated; original terminal abandoned. |
Frequently Asked Questions
What were the previous names of the Sands Point Seaplane Base?
The facility was historically known as the Port Washington Seaplane Base, the New York Seaplane Base, and the Tom's Point Seaplane Base.
Which airline used the base for transatlantic flights?
Pan American World Airways (Pan Am) used the base between 1939 and 1940 for its transatlantic Boeing 314 flights.
Where were the Pan Am hangars located?
The hangars were located at Tom's Point on Manhasset Isle, situated in the Incorporated Village of Manorhaven along Manhasset Bay.
Why did Pan Am leave Port Washington?
Pan Am moved its seaplane operations to the newly opened Marine Air Terminal at LaGuardia Airport.
What role did Grumman play at the seaplane base?
Grumman became a major tenant after Pan Am's departure, using the site as a facility for its seaplanes.
When was the current iteration of the base activated?
The current seaplane base was activated in May 1948, at which time the original hangar and terminal area were abandoned.