'Sealift' is a term used predominantly in
military logistics and refers to the use of
cargo ships for the
deployment of military assets, such as
weaponry, military personnel, and
materiel supplies. It complements other means of transport, such as
strategic airlifters, in order to enhance a
state's ability to
project power. A state's sealift capabilities may include
civilian-operated ships that normally operate by
contract, but which can be chartered or commandeered during times of military necessity to supplement government-owned
naval fleets.
Sealift shipping falls into three broad categories: dry
cargo freighters, liquid
tankers, and
passenger ships. During
joint operations, dry cargo ships may transport equipment and supplies required to conduct and sustain the
operation; tankers carry
fuel; and passenger ships carry troops to the
theater and allow the evacuation of
noncombatants or those in need of
medical aid.
While ships are slower than their airborne counterparts and may require
port facilities to unload their cargo, their larger hauling capacity allows them to transport heavy
armoured forces or bulky supplies that only the largest strategic airlifters (such as the
C-5 Galaxy) could normally handle, and in much greater quantities.
Civilian use
Sealift refers to the re-supply of isolated communities with fuel, building materials, foodstuffs, vehicles and other goods. This is the most common method used in the
Canadian Arctic due to the lower cost and the larger capacity of ships and barges over
aircraft. An annual occurrence in the Arctic, the sealift is usually performed between July and October, when the sea is ice free.
Typically two types of ships are used, the older less seen cargo ship and the more usual
tugboat. While both types also haul
barges, the cargo ship also carries cargo on deck. Most Arctic communities do not have a port and
cranes to unload the supplies but may have a simple dock. Where the community does not have a dock, the ship either must ground itself or the barges. Supplies are then removed by
forklift truck which is also carried on board. The interior of the barges are used to carry fuel and other supplies are carried in
containers on deck.
See also
★
Power projection
★
United States Navy Military Sealift Command
★
Littoral warfare
References
★ ''This article incorporates
public domain text from the
United States Department of Defense Joint Publication 4-01.2 Sealift Support to Joint Operations (
pdf document)
★
Sealift -
Federation of American Scientists Military Analysis Network
★
Sealift Co-ordination Centre - NATO/EU sealift co-ordination
★
Government of Nunavut - sealift information