For a time, the flying boat was seen as the way of the future. These aircraft, so strange and foreign to the modern mind, once criss-crossed the world and fulfi
High speed catamaran and multihull high speed marine vessel have become very popular in the last two decades. The catamaran has become the vessel of choice for
For constant oil-inlet temperature, congealing of the oil at each altitude produces an initial decrease of about 5 to 10 percent of the maximum heat dissipation