Sea Spear (Missile)

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Sea Spear
Sea Spear
Sea Spears launched from the Glasic frigate Síofra
TypeMedium-range, Semi-Active Homing
surface-to-air missile
Place of originTír Glas
Service history
In service2003 – present
Used bySee operators
Production history
ManufacturerGAIA
Produced1999 - present
VariantsSea Spear I, IA, II
Specifications
Weight624 lb (283 kg)
Length12 ft (3.7 m)
Diameter10 in (255mm)
WarheadHigh explosive blast-fragmentation

• Sea Spear I, 86 pounds (39 kg)

• Sea Spear II, 88 pounds (40 kg)
Detonation
mechanism
Proximity/impact Fuze

EngineMulti-Pulse rocket motor
PropellantHTPB (Sea Spear I)
HNIW (Sea Spear II)
Operational
range
• Sea Spear I: 55.5 km (30 nmi)
• Sea Spear II: 64.8 km (35 nmi)
Speed>Mach 4 (4,900 km/h; 3,045 mph)
Guidance
system
• Sea Spear I
INS + TSARH
• Sea Spear II
INS + COLOS
ARH / PRH + IIR


The Sea Spear is a short to medium-range surface to air missile derived from the Skybolt missile.

History and development

The unadopted Skybolt 90 laid the groundwork for what would become Black Spear, the missile from which Sea Spear is derived. It would have improved upon the Skybolt in a number of areas with a dual-mode seeker and further ECM hardening but development shifted toward a new missile which would become Black Spear.

Variants

Sea Spear I Sea Spear IA Sea Spear II
Length 3.7 m (12ft)
Finspan 0.624 m (2ft)
Diameter 0.255 m (10in)
Weight 285kg (628lbs) 287kg (637lbs) 283kg (624lbs)
Speed Mach 4 Mach 4.5
Range 55.5km (30 nmi) 64.8km (35 nmi)
Propulsion HAJ Swallow dual-pulse motor HAJ Oriole multi-pulse motor
Guidance INS + mmW + IR seeker INS + mmW + IR seeker with 1-way datalink INS + Active mmW + I3R seeker with 2-way datalink
Warhead 39kg (86lbs) Blast/Frag 40kg (88lbs) Pre-Formed Blast/Frag


Operators

Current Operators

Tír Glas Tír Glas
  • Royal Glasic Navy (CRTG)