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  2. Mark V Special Operations Craft - Wikipedia

    en.wikipedia.org/wiki/Mark_V_Special_Operations...

    The ramp on the stern allows SEAL teams to ride their CRRCs right up the stern of the boat, for fast extraction and insertion. To support the SOF missions in a medium to low threat environment, the Mk Vs are outfitted with five gun mounts for small caliber weapons supporting any combination of: M-2 .50 cal heavy machine guns , M240 or the M60 7 ...

  3. Combat rubber raiding craft - Wikipedia

    en.wikipedia.org/wiki/Combat_Rubber_Raiding_Craft

    The boat can be used for over-the-horizon transportation, inserting lightly armed raiding parties or reconnaissance teams onto beaches, piers, offshore facilities and larger vessels. The CRRC can be inflated in minutes by foot pump, compressor or CO 2 tank and can be deployed from shore and a variety of vessels.

  4. Light SEAL Support Craft - Wikipedia

    en.wikipedia.org/wiki/Light_SEAL_Support_Craft

    riverine assault boat: Length: 24 ft (7.3 m) Beam: 9.5 ft (2.9 m) Draft: 1.5 ft (0.46 m) Propulsion: 2 × 350hp Ford FE 427 inboard gasoline engines each driving a Jacuzzi water pump jet: Speed: 30+ knots: Complement: 6, generally Navy SEAL team members: Crew: 3, generally a coxswain, a gunner's mate and an engineman: Armament: two single M60 ...

  5. Oakum - Wikipedia

    en.wikipedia.org/wiki/Oakum

    Oakum is a preparation of tarred fibers used to seal gaps. Its traditional application was in shipbuilding for caulking or packing the joints of timbers in wooden vessels and the deck planking of iron and steel ships. [1] Oakum was also used in plumbing for sealing joints in cast iron pipe, and in log cabins for chinking. In shipbuilding it was ...

  6. Stuffing box - Wikipedia

    en.wikipedia.org/wiki/Stuffing_box

    A small boat stuffing box comprising an adjusting nut, a locking nut and a sleeve. On a boat having an inboard motor that turns a shaft attached to an external propeller, the shaft passes through a stuffing box, also called a "packing box" or "stern gland" in this application. The stuffing box prevents water from entering the boat's hull.

  7. Glass-to-metal seal - Wikipedia

    en.wikipedia.org/wiki/Glass-to-metal_seal

    Uranium glass used as lead-in seals in a vacuum capacitor. Glass-to-metal seals are a type of mechanical seal which joins glass and metal surfaces. They are very important elements in the construction of vacuum tubes, electric discharge tubes, incandescent light bulbs, glass-encapsulated semiconductor diodes, reed switches, glass windows in metal cases, and metal or ceramic packages of ...

  8. Umiak - Wikipedia

    en.wikipedia.org/wiki/Umiak

    The skin cover on an umiak will last for two or three years, as does an aluminum boat used in the same way; however, replacing the skin on an umiak is much easier than repairing an aluminum boat. Additionally, the bowhead whale is sensitive to the metallic noise from aluminum boats, and tend to move away under the ice, to avoid them. [citation ...

  9. Special Operations Craft – Riverine - Wikipedia

    en.wikipedia.org/wiki/Special_Operations_Craft...

    The aft-mounted .50 cal covers the boat crew as they leave the shore after an extraction. The SOC-R and its tractor and trailer fits aboard C-130 or larger aircraft. The craft can also be slung under an Army MH-47 helicopter using the MEATS system, which allows Combatant-Craft Crewmen to fast-rope from the helicopter onto the craft during ...