Nederlandse Modelbouw en Luchtvaartsite

Dutch Modelling and Aviation

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In Memoriam

Klaas Willem Jonker
(Wilko)
† April 30, 2018

On Monday 30 April 2018, Wilko Jonker died after a long illness at the age of 58. He leaves behind a wife and two children. The Dutch military aviation and plastic modeling were his hobby and on this website he shared all the knowledge he has collected over the years. His hobby has been able to distract him from the persistent disease in his body until the last week of his life. The contacts with other hobbyists were a major support for him.

This website will be maintained by different people for as long as possible, so that other enthusiasts can continue to benefit from extensive content.

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History

The Sea Otter was developed to succeed the Supermarine Walrus and made its maiden flight on September 23, 1938.
It had a great resemblance with it predecessor, but was equipped with a pulling air screw.

The Sea Otter was also faster and had a larger range.

Initially, the prototype was equipped with a Bristol Perseus XI with a two-bladed propeller, which was soon replaced by a three-bladed propeller.

Only in January 1942 the first production order was received. Due to problems with the cooling with the Perseus engine, the engine for the production aircraft became a Bristol Mercury XXX.

The Seaotter was used by both the RAF and the Royal Navy for Air-Sea Rescue (ASR) and patrol work.
Ultimately, there are 290 units built, all by Saunders-Roe, as Supermarine did not have any capacity available.

Versions

Sea Otter I:
for reconnaissance and communications duties.
Sea Otter II:
for air sea rescue.

 

Technical information
Dimensions:
Length: 12,19 m Wingspan: 14,02 m
Height: 4,93 m Wing area: 56 m2
Weights:
Empty weight: - kg Max. start weight: . kg
Performances:
Max. speed: 247 km/hr Rate of climb: 265 m/min
Cruising speed: 193 km/hr    
Range: 1550 km Service ceiling: 5181 m
Miscellaneous:
Engine type: One Bristol Mercury XXX of 955 hp
Crew: Three men
Armament: None