Kaman SH-2 Seasprite
1959 military helicopter family by the Kaman Corporation
The Kaman SH-2 Seasprite is a ship-based helicopter originally developed and produced by American manufacturer Kaman Aircraft Corporation. It has been typically used as a compact and fast-moving rotorcraft for utility and anti-submarine warfare (ASW) missions. Early on it was a modest sized single-engined naval utility helicopter, and progressed to twin-engine ASW and SAR, and the latest model served well into the 21st century, with the G model in active service in the 2020s with Egypt, New Zealand, Peru, and Poland.
The Seasprite, with the internal Kaman designation K-20, was developed in the late 1950s in response to a United States Navy (USN) requirement for a suitably fast and compact naval utility helicopter. The USN found the Seasprite attractive, and ordered four prototypes and an initial batch of 12 production helicopters as the HU2K-1. Under the 1962 United States Tri-Service aircraft designation system, the HU2K and HU2K-1 were re-designated as H-2 and UH-2A respectively. Kaman also pursued foreign sales; after showing interest, the Royal Canadian Navy (RCN) rejected the Seasprite due to an unexpected price increase and underperformance during sea trials. The USN addressed the poor performance by converting the single-engine Seasprites into a more powerful twin-engine configuration from 1968.
In October 1970, the USN selected the Seasprite as the interim Light Airborne Multi-Purpose System (LAMPS) helicopter, resulting in the SH-2D/F variant with enhanced ASW and anti-surface warfare sensors. Most UH-2s were converted into SH-2Fs.
“Kaman SH-2 Seasprite” enters the record as 1959 military helicopter family by the Kaman Corporation. Crown Archives preserves that source wording while asking what Kaman, SH-2 and Seasprite can confirm, complicate or overturn.
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The citation trail is more important than the brevity of the summary: it shows where individual claims can be examined in context. The source revision retrieved here is dated Sep 20, 2026. The linked authority identifier is Q1477647. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1962, 1968 and 1970.
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