''Holland Boat No. I'' was a prototype submarine designed and operated by

John Philip Holland John Philip Holland ( ga, Seán Pilib Ó hUallacháin/Ó Maolchalann) (24 February 184112 August 1914) was an Irish engineer who developed the first submarine to be formally commissioned by the US Navy, and the first Royal Navy submarine, ''Ho ...

Construction

Work on the vessel began at the Albany Iron Works in

New York City New York, often called New York City or NYC, is the most populous city in the United States. With a 2020 population of 8,804,190 distributed over , New York City is also the most densely populated major city in the Un ...

, moving to Paterson, New Jersey, in early 1878. The boat was launched on 22 May 1878. It was 14 feet long, weighed 2.25 tons, and was powered by a 4-horsepower Brayton

petroleum Petroleum, also known as crude oil, or simply oil, is a naturally occurring yellowish-black liquid mixture of mainly hydrocarbons, and is found in geological formations. The name ''petroleum'' covers both naturally occurring unprocessed crud ...

engine driving a single screw. The boat was operated by Holland himself.

Testing

After several tests, on 6 June Holland conducted his first proper trial. The boat ran on the surface at approximately 3.5 knots, then submerged to a depth of 12 feet, before eventually surfacing. However, problems with the engine, meant that Holland eventually connected the engine, by a flexible hose, to a steam engine in an accompanying launch and powered the boat externally. In a second trial, Holland remained submerged for an hour. Holland eventually stripped the boat of usable equipment and scuttled it in the Passaic River. These trials impressed Holland's backers, the

Fenian Brotherhood The Fenian Brotherhood () was an Irish republican organisation founded in the United States in 1858 by John O'Mahony and Michael Doheny. It was a precursor to Clan na Gael, a sister organisation to the Irish Republican Brotherhood (IRB). M ...

, who on the strength of this success financed the ''Holland Boat No. II'', which became known as the ''

Fenian Ram ''Fenian Ram'' is a submarine designed by John Philip Holland for use by the Fenian Brotherhood, the American counterpart to the Irish Republican Brotherhood, against the British. The Fenian Ram was the world’s first practical submarine, i ...

''. The vessel was recovered in 1927 and is now on display at the

Paterson Museum Paterson Museum is a museum in Paterson, in Passaic County, New Jersey, in the United States. Founded in 1925, it is owned and run by the city of Paterson and its mission is to preserve and display the industrial history of Paterson. It is loc ...

in New Jersey.

References

1878 ships 19th-century submarines of the United States {{US-submarine-stub