Border & CBRNE Defense (BCD)

Published November 13

The SOCOM Program Manager – Surface Systems (PM-SS) is conducting market research to determine sources capable of fabricating Sea Air Land Insertion Observation and Neutralization (SEALION) III.

SEALION III will maintain the same capabilities of SEALION I and SEALION II with minor modifications to implement improvements in the areas of Reliability/Availability/Maintainability (R/A/M) and safety. Like SEALION I and SEALION II, SEALION III will provide a specialized platform with signature consideration in support of special operations forces (SOF) core tasks of counter-proliferation (CP), counter-terrorism (CT), direct action (DA), special reconnaissance (SR), and irregular warfare (IW).

To this end, issued a request for information (RFI) to identify industry sources capable of manufacturing SEALION III. If a request for proposal is issued, USSOCOM intends to provide a technical data package (TDP) for SEALION III defining the configuration baseline.


Craft Characteristics/Requirements to meet mission and transportation requirements:


  1. High performance aluminum, twin water-jet, diesel powered monohull
  2. Approximate Length Overall (LOA): 80 ft
  3. Approximate Beam: 14.5 ft
  4. Approximate Height: 9.5 ft
  5. Approximate Full Load Displacement: 80,000 lbs
  6. Approximate Lightship: 65,000 lbs
  7. Approximate Fuel Capacity: 1,400 gal
  8. Approximate horsepower: 3,000 brake horse power (bhp) (i.e., 2 x 1,500 bhp)
  9. Capacity for 7 crew and 12 passengers.
  10. Air transportable (C5 and C17 Aircraft)
  11. Vector Control Dynamic Positioning System
  12. Signature Considerations




Outboard Profile and Exterior Arrangement: The approximate overall dimensions of the craft shall be approximately 80 feet long by 14.5 feet wide and the craft shall be capable of air transport on a C-5 and C-17. Venting of air for main engine combustion, make-up air, and ballast tank venting shall be done on the horizontal flat decks. The craft shall have a permanently mounted Combatant Craft Forward Looking Infrared (CC FLIR) above the forward portion of the payload compartment, two (2) conformal Satellite Communication (SATCOM) antennas, one (1) Ultra High Frequency/Very High Frequency (UHF/VHF) Line Of Sight (LOS) antenna, one (1) Furuno Global Positioning System (GPS) antenna, two (2) deck mounted Defense Advanced GPS Receiver (DAGR) antennas, one (1) deck mounted Blueforce tracker antenna, one (1) Furuno DRS4D radar scanner and motor assembly enclosed in a radome, four (4) 9″x9″ nominal access plates over the crew compartment, two (2) 4″ ¼ turn neck adapter assemblies over the crew compartment, one (1) 4″ ¼ turn neck adapter assembly over the engine compartment, two (2) 4″ ¼ turn neck adapter assemblies over the payload compartment, two (2) 9″x9″ nominal access plates over the payload compartment, at least a 48″ x 120″ clear area opening soft patch over the payload compartment with one (1) 9″x9″ nominal access plate, and a stern door that is capable of launching and recovering a Combat Rubber Raiding Craft (CRRC).


Inboard Profile and Interior Arrangement: The interior of the craft shall consist of an enclosed crew compartment, electrical compartment, engine compartment, and a payload compartment. All spaces except the engine compartment shall be heated and cooled. All spaces shall have an adequate supply of make-up air.


Doors, Hatches, and Access: Exterior access to the payload, crew, and engine compartment shall be controlled with quick acting, water tight Freeman hatches. Internal access shall be controlled with Freeman doors between the crew compartment, electrical compartment, engine compartment, vestibule, and payload compartment.


Machinery Arrangement: The engine compartment shall contain the port and starboard: 10V2000 M93 CR main propulsion engines, ZF 2060 Marine Gears, Fischer Panda Mini 12 Generators, Separ Fuel Water Separators, Parker-Hannifin Fuel Polisher, Marine Exhaust System, Rexroth pumps for main and hydraulic steering, and Oberdorfer auxiliary seawater pumps. Other equipment located in the engine compartment shall consist of Delta-T air dampers with moisture eliminators, Fireboy automatic/manual fire suppression system, de-watering pump, emergency DC hydraulic pump, Charles battery charger, ship/shore power transformer, Hydra power systems hydraulic and fuel manifold, steering coolers, main hydraulic coolers, battery control junction box, alternating current switchboard box, payload and crew compartment Heating, Ventilation, Air Conditioning (HVAC) compressors, electrical and ship service battery banks, and vent damper actuation cylinder.


Shafting: The main propulsion shafting system, provided by Driveline Service of Portland, shall be run through a watertight enclosure, be accessible for repairs and maintenance, and consist of a three-piece system with a forward and aft Cardan shaft. The intermediate shaft is supported by two Cooper pillow block bearings.


Control Systems: The craft shall have an alarm monitoring system and a can bus network of Parker/IQAN and ETA modules. Controls and user interface modules shall be located in the crew and payload compartments. Primary craft steering shall be controlled by Vector Controls joysticks and tillers at the coxswain and navigator stations in the crew compartment with a remote station controller capable of operating the craft from the topside deck of the payload and engine/crew compartment. Main engine controls shall be controlled with MTU vendor supplied controls. The main engines shall be able to be started, stopped, clutched in/out, change revolutions per minute (RPM) from the console in the crew compartment and at the local engine control panel in the engine compartment. Analog style gauges shall be used at the console for the coxswain. The engineering station in the crew compartment shall have a Helmview Display. The local operating panels in the engine compartment shall have Extensible Display Manager (EDM) displays.


Console Arrangement: The console shall contain coxswain and navigator displays, engine controls, craft network control interfaces, steering controls, flat console space, steering backup controls, Vector Control alarm panel, fire suppression panel, defogger controls, backup hydraulic control panel, HVAC controls, Furuno Multi-Functional Display (MFD)-12 display, 12/24 VDC convenience outlets, Identification, Friend or Foe (IFF) control panel, and Marine-Band (MARBAND) VHF ICOM Radio. The engineering station console shall have emergency engine controls, generator controls, lighting controls, fuel fill alarm controls, alarm indicator lighting, and alarm buzzers for craft control and engine alarms.


Exhaust System: The main engine exhaust system shall be comprised of a Marine Exhaust system with risers, spray ring, surge tube, and swing check valve.


Ballast System: The craft shall be capable of taking water into the craft internally via 12 inch 5086 Aluminum, schedule 40, piping for the main ballast tank and six (6) inch 5086 Aluminum, schedule 40, piping for the aft ballast tank. Ballast water into the craft is aided by a Hydra Power System supplied ballast pump. Ballast water out of the craft is also to be done with the Hydra Power System ballast pump. In addition, four inch 5086 Aluminum, Schedule 40, piping shall be used to drain the payload compartment. All butterfly valves which control the flow of water in their respective piping assembly shall be done with a Hydra Power System hydraulic actuator controlled and monitored by the Parker IQAN/ETA network.


Bilge Drainage System: The main ballast tank, aft ballast tank, vestibule, engine compartment, and HVAC condensate sumps shall be drained using 24 VDC ITT Rule bilge pumps. The system shall be controlled and monitored by the Parker IQAN/ETA network.


Fuel System: Two (2), 450 gallon day tanks, and one (1), 530 gallon aft located fuel tank. Fuel tanks will have the Parker-Hannifin fuel polishing system installed to condition fuel supplied to aft and day tanks. Fuel supply to the port and starboard main engines through a Hydra Power System fuel manifold and SEPAR fuel water separators. Fuel for the port and starboard Fischer Panda Generator shall be supplied from the port and starboard main engine day tanks.


Compressed Air: Compressed air for the craft shall be supplied from two (2), 80 cubic feet (cu. ft.) high pressure (HP) air flasks. An Aircraft Rubber Manufacturing, 86 cu. ft. damage control bladder shall be installed in the forward section of the main ballast tank supplied from one (1) dedicated 80 cu. ft. HP air flask with regulators to step down the pressure for filling.


Main and Steering Hydraulic System: The main and steering hydraulic (i.e., ISO 46) system provided by Hydra Power Systems shall be capable of meeting all of the hydraulic requirements of the craft. The hydraulic steering system shall be independent, port and starboard. The engine driven Rexroth pumps shall supply hydraulic fluid to the port and starboard steering systems needed to steer and control the Kamewa A3 40 water-jets. The main hydraulic (ISO 46) system shall supply hydraulic fluid via engine driven Rexroth pumps to power the main ballast tank pump, ballast tank hydraulic actuators, stern door rams, and forward tow post ram.


Acoustic and Thermal Insulation Arrangement: Thermal insulation from Soundown shall be applied to all external surfaces of the crew and payload compartment to cover the external structure. Thermal insulation from Soundown shall also be applied to all external surfaces of the engine compartment to cover the external structure. Insulation shall extend down below the knuckle to the light ship waterline. Thermal and acoustic insulation shall be applied to the engine compartment and electrical compartment bulkhead, electrical compartment and engine compartment bulkhead, and the engine compartment and payload compartment bulkhead. No insulation is required for internal deck surfaces, doors, and exterior hatches.


Crew Compartment Arrangement: The crew compartment shall hold seven (7) deck mounted Ullman Daytona seats and standing room for four.


Payload Compartment Arrangement: The payload compartment shall be capable of mounting eight (8) deck mounted (tracks) Ullman Daytona seats. Without the seats installed, the payload compartment shall also be capable of carrying one fully inflated CRRC, one (1) deflated CRRC, and two (2), 35 horse-power multi-fuel outboard engines.


Exterior Painting: The entire craft shall be mechanically cleaned and prepared for paint. The entire craft shall be primed. The exterior topside of the craft shall be painted in accordance with the Coastal Camo Paint Scheme utilizing Surface Optics Corp paint. The hull bottom of the craft shall be painted with two coats Interspeed bottom paint.


Deadline for responses is expected to be December 16, 2015.


Primary point of contact is Roxanne Gerry,, 813-826-5177