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Displacement ventilation systems supply air directly to the occupied zone.The air is supplied at low velocities to cause minimal induction and mixing. This system is used for ventilation and cooling of large high spaces, such as auditorium and atria, where energy may be saved if only the occupied zone is treated rather than trying to control the conditions in the entire space.
The grey area indicates the deck of the boat. A dorade box (also called a dorade vent , collector box , cowl vent , or simply a "ventilator") is a type of vent that permits the passage of air in and out of the cabin or engine room of a boat while keeping rain, spray, and sea wash out.
In 1976, Shipps, [2] among other air-supported waterborne vehicles, analyzed a new kind of race boats, known as 'tunnel hull' race boats. Two planing sponsons act as aerodynamic end plates of the central 'channel flow' or ram wing.
On 29 June 1987, approval was granted for full LCAC production. Forty-eight air-cushion landing craft were authorized and appropriated through FY 89. Lockheed Shipbuilding Company was competitively selected as a second source. The FY 1990 budget request included $219.3 million for nine craft.
All of Kreuger's personal belongings, including houses, boats, furniture, paintings, etc., was sold at several auctions in 1932. Kreuger & Toll Construction AB however survived, as this company did not belong to the holding company, although the financial connections between these companies was never fully clarified.
The vessel's clearance is the distance in excess of the air draft which allows a vessel to pass safely under a bridge or obstacle such as power lines, etc.A bridge's "clearance below" is most often noted on charts as measured from the surface of the water to the underside of the bridge at the chart datum Mean High Water (MHW), [3] [4] a less restrictive clearance than Mean Higher High Water ...
USCGC Eastwind in foreground during operations in Greenland fjord during 1952 with USCGC Northwind in distance. Eastwind ferried 200 US army troops which captured the last German weather station in Greenland, Edelweiss II, on 4 October 1944.
The Super Air Nautique G23 Paragon was announced in 2019. It is the first boat Nautique has built that has a dry weight of over 7000 lbs. This boat is considered a more luxurious G-Series and also comes with increased performance. [19] Added weight comes from a telescoping flight tower and recliner seats positioned in the transom of the boat.