The Supermarine Sea Otter was a British amphibian aircraft designed and built by Supermarine; it was a longer-range development of the Walrus and was the last biplane flying boat to be designed by Supermarine; it was also the last biplane to enter service with the Royal Navy and the RAF.
|Prototype of Sea Otter|
|First flight||23 September 1938|
|Primary users||Royal Air Force|
Royal Danish Air Force
|Developed from||Supermarine Walrus|
The main difference between the Walrus and the Sea Otter was in the mounting of the powerplant; the Walrus had a rear-facing engine with a pusher propeller and the Sea Otter's engine faced forward with a tractor propeller.
There was considerable development of the power plant/propeller combination during the design of the Sea Otter, which at its conception was called the "Stingray". The original test aircraft had a Bristol Perseus XI radial engine with a two-bladed propeller, which gave insufficient thrust so a two-position three-blade propeller was substituted, later changed again to a four-bladed type with the pairs of blades set at an angle of 35°, instead of the usual 90°. The first flight took place on 23 September 1938, but it was not until January 1942 that the Air Ministry placed a production order. Due to cooling troubles found with the Perseus, the power-plant was changed for production aircraft to the Bristol Mercury XXX engine driving a three-bladed propeller. The Sea Otter was used by both the RAF and the Royal Navy for air-sea rescue and patrol roles.
Postwar, Sea Otters were converted for civilian use. The cabin was soundproofed and fitted with heating. Seating for four passengers, a chemical toilet and a stowage for baggage were provided. As they were intended for use as Bush airplanes in remote areas, versatility was important. To allow cargo to be carried, the cabin floor was strengthened and fitted with lashing points, and the passenger seats made easily removable.
Of the 592 aircraft ordered, only 292 were built due to the end of the Second World War. Eight aircraft were bought for the Royal Danish Air Force, and another eight were supplied to the Dutch Naval Air Arm. The colonial service of France purchased six Sea Otters for use in French Indochina.
Data from Supermarine Aircraft since 1914
No museum holds a complete aircraft. The Fleet Air Arm Museum (Australia) at Nowra, New South Wales, Australia, has the nose section of JN200, a Sea Otter which served with the Royal Australian Navy.
Aircraft of comparable role, configuration and era
Media related to Supermarine Sea Otter at Wikimedia Commons1700 Naval Air Squadron
1700 Naval Air Squadron of the Fleet Air Arm of the Royal Navy was formed in November 1944 at RNAS Lee-on-Solent as an amphibian bomber reconnaissance squadron. It was equipped with the Supermarine Sea Otter, and the squadron joined HMS Khedive in January 1945 bound for Sulur in India. On arrival the Sea Otters were augmented with Supermarine Walrus amphibian aircraft.The squadron's aircraft were distributed among the escort carriers of the Far East Fleet for air sea rescue and minesweeping duties. By April 1945 aircraft of the squadron were serving in HM Ships Stalker, Hunter, Khedive, Emperor, Ameer, Attacker and Shah. July saw operations at Car Nicobar, and off Phuket Island.1701 Naval Air Squadron
1701 Naval Air Squadron of the Fleet Air Arm of the Royal Navy was formed in February 1945 at RNAS Lee-on-Solent as an amphibian bomber reconnaissance squadron. It was equipped with the Supermarine Sea Otter, and the squadron joined HMS Begum in April 1945 bound for the Far East.The squadron was intended to join the newly established Mobile Naval Air Bases for Air Sea Rescue duties. B Flight joined MONAB IV (HMS Nabaron) at Ponam in the Admiralty Islands in May 1945 and embarked in HMS Reaper in October 1945. A Flight joined MONAB VI (HMS Nabstock) at Maryborough, Queensland, Australia in June 1945.1702 Naval Air Squadron
1702 Naval Air Squadron of the Fleet Air Arm of the Royal Navy was formed in June 1945 at RNAS Lee-on-Solent as a Special Service squadron. It was equipped with the Supermarine Sea Otter, and by the end of World War II the squadron remained at Lee-on-Solent.
The squadron joined HMS Trouncer in September 1945 to search for mines in the Mediterranean.1703 Naval Air Squadron
1703 Naval Air Squadron of the Fleet Air Arm of the Royal Navy was formed in August 1945 at RNAS Lee-on-Solent for duties in the Pacific. It was equipped with the Supermarine Sea Otter.
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The Australian Fleet Air Arm Museum, formerly known as Australia's Museum of Flight, is a military aerospace museum located at the naval air station HMAS Albatross, near Nowra, New South Wales. The museum was opened in 1990, although efforts to preserve artifacts related to Australia's naval aviation history began in 1974. The museum houses aircraft used throughout the history of the Fleet Air Arm, the naval aviation branch of the Royal Australian Navy (RAN), along with other aircraft of relevance to Australia's aviation history, and memorabilia relating to Australian aircraft carriers. The museum includes 34 aircraft and helicopters in its collection. It is open to the public daily, except for major public holidays. The museum building is also home to Albatross Aero Club.List of aircraft of the Egyptian Air Force
The following is a list of the aircraft operated by the Egyptian Air Force throughout its history. Coloured cells denote types that are still in active service.List of aircraft of the Royal Australian Navy
This is a list of aircraft of the Royal Australian Navy.List of aircraft units of the Royal Navy
This is a List of aircraft units of the Royal Navy.No. 276 Squadron RAF
No. 276 Squadron RAF was a Royal Air Force Squadron formed as an air-sea rescue unit in World War II.No. 277 Squadron RAF
No. 277 Squadron RAF was a Royal Air Force Squadron formed as an air-sea rescue unit in World War II.No. 278 Squadron RAF
No. 278 Squadron RAF was a Royal Air Force Squadron formed as an air-sea rescue unit in World War II.No. 281 Squadron RAF
No. 281 Squadron was a Royal Air Force air-sea rescue squadron during the Second World War.No. 282 Squadron RAF
No. 282 Squadron was a Royal Air Force air-sea rescue squadron during the second world war.Plane guard
A plane guard is a warship (commonly a destroyer or frigate) or helicopter tasked to recover the aircrew of planes or helicopters which ditch or crash in the water during aircraft carrier flight operations.Sea otter (disambiguation)
The sea otter (Enhydra lutris) is a marine mammal:
The European otter (Lutra lutra) is sometimes called "sea otter" when seen living on sea coasts.Sea otter may also refer to:
Sea Otter Classic, a bicycling sports festival in Monterey, California, in the United States
Sea Otter Cove, a remote place near the north-western end of Vancouver Island in British Columbia, Canada
Sea Otter Rocks, rocks of the Commander Islands in the Bering Sea
Supermarine Sea Otter, a British flying boat of the late 1930s and 1940s
USS Sea Otter (SP-781), a United States Navy patrol boat in commission from 1917 to 1919
USS Sea Otter I (IX-51), a United States Navy experimental auxiliary ship in commission from July to November 1941
USS Sea Otter II (IX-53), a United States Navy experimental auxiliary ship in commission from 1941 to 1942