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Questions and Answers.

Hi,

In your website on Sea Slug you make no mention of the NK1 motor which most sources (including Wikipedia) state as being the liquid fuelled sustainer motor for the Mk1 missile. Why is this?

Merchant of Light.

Hello Merchant of Light,

Seaslug grew out of the LOP/GAP (Liquid Oxygen & Petrol Guided Anti-Aircraft Project). As its name implies it was to have used liquid oxygen and petrol (gasoline for our American readers) as the fuel. This combination, however, was never used in British service and concentrated hydrogen peroxide (High Test Peroxide or HTP) with paraffin (kerosine) was the preferred liquid fuel. This combination was used (as was nitric acid and methanol) on the test vehicles that formed the beginning of the Seaslug project as it was felt that waiting for a suitable solid-fuelled sustainer motor would delay the project. In the event other delays meant that IMI had sufficient time to develop a reliable motor; this was Foxhound and it was used on all Mk1 missiles.

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Last updated 19 July 2012.