A drag count is a single unit of drag as defined by aerospace engineers. Drag is generally computed using the equation: Look up aerospace in Wiktionary, the free dictionary. ... For a solid object moving through a fluid or gas, drag is the sum of all the aerodynamic or hydrodynamic forces in the direction of the external fluid flow. ... In physics, the drag equation gives the drag experienced by an object moving through a fluid. ...
A drag count is 1/10000 of a Cd. So if, for example, the steady state drag coefficient is 0.020 and someone sticks a hand out the window adding 5 drag counts, the new drag coefficient would be: The density of air, ρ (Greek: rho) (air density), is the mass per volume of Earths atmosphere, and is a useful value in aeronautics. ... This article contains information that has not been verified and thus might not be reliable. ... The drag coefficient (Cd or Cx) is a number that describes a characteristic amount of aerodynamic drag caused by fluid flow, used in the drag equation. ... In dimensional analysis, a dimensionless number (or more precisely, a number with the dimensions of 1) is a pure number without any physical units. ... In mathematics and the mathematical sciences, a constant is a fixed, but possibly unspecified, value. ...
0.020 + 0.0005 = 0.0205 or 205 drag counts.
Drag count is used as a crude measure for the change in drag coefficient (it is not a direct measure of drag as it is associated with a reference area, it is only valid for use as a relative assessment of change).
wherein the means for connecting the speed adjustment means to the zero count indicator terminal of the second down counter is further characterized as a means for alternatively connecting the zero count indicator terminal of the second down counter to the speed adjustment means and the means for energizing the solenoid valve.
In the sport of drag racing, the focus is on the time required for a racing car to cover a relatively short distance from a standing start and a race will generally last for a time period of only about ten seconds.
Counting is then discontinued by connecting the inhibit terminal (manufacturer's pin number 4) of the counter 76 to the zero terminal thereof to inhibit further counting by the counter 76 and, consequently by the counters 78 and 80 which receive clock pulses from the counter 76.
Feeds |
Contact