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AN/SPS-59 radar 


AN/SPS-59 radar

(United States)

Notes: Based on the civilian LN-66 (which it is often referred to as by sailors), this is a navigation radar which was bought both by the US Navy and the US Army for it’s watercraft units. There are two versions, the basic which as a 4' antenna and the AN/SPS-59(V) mod which has a larger antenna. Both can be carried open or in radomes.

This radar is based on the LN-66H carried by the SH-2 Seasprite as it’s periscope-detection radar, and as such retains a high pulse repetition enabling good discrimination of small contacts.

AN/SPS-59 is suitable for warships of any size including tugs, amphibious craft, small auxiliaries, patrol craft, and all the way up to large combatants. It is a successful and well-liked radar and will likely continue to see widespread service for the future.

USERS: United States, Brazil, Chile, Ecuador, Greece, South Korea, Malaysia, Mexico, Morocco, Pakistan, Peru, Philippines, Saudi Arabia, Spain, Taiwan, Thailand, Turkey

Operating band:



Max instrumented: 40NM

Average max (V) mod: 38NM

Average max baseline: 25NM

Small contact / periscope: 9NM

Pulse width:

0.5 or 0.05 ms

Entry created by: Jason W. Henson

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