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On a kayak, the spraydeck is secured to a rim surrounding the cockpit with a line or elastic string called a rand. [1] The line or string often runs inside the hem along the edge of the spraydeck. Alternatively elastic cord is attached directly to the edge of the spraydeck, and is tightened around the rim of the kayak's cockpit or stretched ...
The second set of essentials for kayaking is an off-set paddle where the paddle blades are tilted to help reduce wind resistance while the other blade is being used in the water. These vary in length and also shape depending on the intended use, the height of the paddler, and the paddler's preference.
Typically, kayak design is largely a matter of trade-offs: directional stability ("tracking") vs maneuverability; stability vs speed; and primary vs secondary stability. Multihull kayaks face a different set of trade-offs. The paddler's body shape and size is an integral part of the structure, and will also affect the trade-offs made.
A kayak roll or Eskimo roll is the act of righting a capsized kayak by use of body motion and/or a paddle. Typically this is done by lifting the torso towards the surface, flicking the hips to right the kayak, and applying a small force by means of the paddle to assist the torso back over the boat.
Forerunner of the great helm. The enclosed helmet covered the entire head, with full protection for the face and somewhat deeper coverage for the sides and back of the head than that found on previous types of helmets. It was developed near the end of the 12th century and was largely superseded by the true great helm by c. 1240. Great helm
Improved Modular Tactical Vest fielded by the US Marine Corps. Body armor, personal armor (also spelled armour), armored suit (armoured) or coat of armor, among others, is armor for a person's body: protective clothing or close-fitting hands-free shields designed to absorb or deflect physical attacks.
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The U.S. Army's M1 Abrams MBT with TUSK (Tank Urban Survival Kit) upgrade uses composite, reactive and slat armour. Military vehicles are commonly armoured (or armored; see spelling differences) to withstand the impact of shrapnel, bullets, shells, rockets, and missiles, protecting the personnel inside from enemy fire.