Search results
Results from the WOW.Com Content Network
As it is an opaque material, the remaining 10 percent must be reflected. Conversely, a low-e material such as aluminum foil has a thermal emissivity/absorptance value of 0.03 and as an opaque material, the thermal reflectance value must be 1.0 - 0.03 =0.97, meaning it reflects 97 percent of radiant thermal energy. Low-emissivity building ...
Hydrofoiling wingsail catamaran 17. A sailing hydrofoil, hydrofoil sailboat, or hydrosail is a sailboat with wing-like foils mounted under the hull.As the craft increases its speed the hydrofoils lift the hull up and out of the water, greatly reducing wetted area, resulting in decreased drag and increased speed.
A hydrofoil is a lifting surface, or foil, that operates in water. They are similar in appearance and purpose to aerofoils used by aeroplanes. Boats that use hydrofoil technology are also simply termed hydrofoils. As a hydrofoil craft gains speed, the hydrofoils lift the boat's hull out of the water, decreasing drag and allowing greater speeds.
Aluminium foil (or aluminum foil in American English; occasionally called tin foil) is aluminium prepared in thin metal leaves. The foil is pliable and can be readily bent or wrapped around objects. Thin foils are fragile and are sometimes laminated with other materials such as plastics or paper to make them stronger and more useful.
A hydroplane was added forward to increase speed. These boats can operate at 40 knots at sea state 4 and 35 knots at sea state 5. A heavier twin 57 mm gun was added aft in response to NATO fast attack craft being fitted with the 76 mm OTO Melara gun. The boats are fitted with a helicopter type dipping sonar aft.
Aluminum foil is the most effective way to preserve the moisture in your food - better than plastic wrap! But instead of tossing it when you're done, you can repurpose it, and save a few bucks in ...
The Grachonok class, Russian designation Project 21980 Grachonok, is a class of anti-saboteur and large guard boats being built for the Russian Navy.The class is designed to combat sabotage and terrorist forces and means in the waters off bases and near the approaches to them, as well as to assist the FSB Border Service of Russia in solving the problems of preservation and protection of the ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!