Spindrift wind. Some sources regard "spoondrift" as a direct alternative to "spindrift" in all its uses. In Greek and Roman mythology, Leucothea is considered the goddess of spindrift. Spindrift Spindrift (more rarely spoondrift) usually refers to spray, particularly to the spray blown from cresting waves during a gale. This spray, which "drifts" in the direction of the gale, is one of the characteristics of a wind speed of 8 Beaufort and higher at sea. In Great Britain "spindrift" is the telltale sign used by mariners to define a Force 8 (Beaufort Scale) wind (not higher) when observed at sea. See this
Wind tunnel high Reynolds number, since it is not practical to obtain full scale Reynolds number by use of a full scale vehicle. V/STOL tunnels require large cross section area, but only small velocities. Since power varies with the cube of velocity, the power required for the operation is also less. An example of a V/STOL tunnel is the NASA Langley 14' x 22' tunnel. Aircraft have a tendency to go to spin when they stall. These tunnels are used to study that phenomenon. Automotive wind tunnels fall into two categories: Wunibald Kamm built the first full-scale wind tunnel for motor vehicles.