37
Seasats has released Lightfish Security, a
turnkey autonomous surface vehicle (ASV)
designed to support persistent intelligence,
surveillance and reconnaissance (ISR) missions
in littoral, harbour, and open-ocean
environments.
The platform addresses critical operational
needs in maritime domain awareness (MDA),
port and coastal security, and remote
infrastructure monitoring — whether tracking
illegal fishing activity, trafficking operations, or
other emerging threats.
The Lightfish is 11.4ft (3.5m) in length by 1m
(3.4ft) wide and can be launched and recovered
in less ten minutes with man-portable
components. It weighs 367lb (166 kg)n and
therefore, no shipboard crane or davit is
required. It has a composite hull with
retractable keel for storage.
The vessel has a range of over 6000 nautical
miles, cruising at a speed of 2kts (max 4.5 kts). It
is operational up to Sea State 6 and fully self
righting. Power is generated by a Torqueedo
1103 electric drive.
The Lightship receives power from a 415W solar
collector and this is fed to a 4.0 kWh lithium-ion
battery. There is also a built-in supplemental
methanol fuel cell which provides 100 W of
boost power on demand.
For communications, it has a Starlink, Iridium
Cetus and cellular system with optional MANET
radio. For navigation and sensing, it has 5x
onboard HD cameras, GNSS/GPS, IMU,
compass, 2D LiDAR, AIS send/receive, tricolour
navigation light. There is also a collision
avoidance automated AlS sense and avoid plus
LiDAR object detection.
The sensor package can include Marine
radar, HD and thermal cameras, AIS broadcast/
receive, LiDAR
“ The Lightfish Security is engineered for multi-
month endurance and rapid field deployment,”
said Seasats CEO Declan Kerwin. Leveraging a
low-profile, the vessel can operate for many
months continuously, tracking vessels many
miles away without being seen itself.
SEASATS