Trimming the meplat decreases the bullet's ballistic coefficient, increasing drag and making it more susceptible to wind drift . So even though the grouping will be tighter, the time of flight and wind drift will be slightly greater.
32.
The West Australian Current and Southern Australian Countercurrent, which are produced by the West Wind Drift on the southern Indian Ocean and at Tasmania, respectively, flow in the opposite direction, producing one of the most interesting oceanic current systems in the world.
33.
The second is dead reckoning, which consist of keeping track of how far you have gone and in what direction since you started, using instruments which measure various aspects of the plane in motion, such as speed, deviation, wind drift and so on.
34.
The calculator and wind drift settings, formerly mounted on top and in front of the large compass at the rear of the earlier models, was moved to the left side of the device and changed in form to make it smaller as well.
35.
The island is relatively young, as it developed out of a sand bar, which due to wind drift of sand from Sylt has now grown to a height of approximately 4.10 m above sea level and is no longer submerged during high tide.
36.
He said a wind drift indicator _ a fluorescent yellow crepe paper 10 inches by 20 feet _ was dropped from the plane to determine where the plane should position itself for the chutists to make the target _ the parking lot of Marina Bay.
37.
From the plane, Corbet tosses a pair of crepe paper streamers _ red and yellow _ to mark the wind drift . They land in the wet grass just a few feet away from the targets _ blaze orange streamers laid out in a circle and a square.
38.
This decreases the size of the meplat which increases the ballistic coefficient and reduces drag, time of flight and wind drift . Some target shooters sort their bullets by weight, point their bullets and then trim them to the same meplat width to ensure the greatest possible consistency.
39.
Motion across the axis pushes the entire wind bar to the left or right, indicating the proper heading to fly to cancel out the wind drift . Motion along the axis pushes the ground speed slider fore or aft, accounting for the difference between air and ground speed.
40.
The West Wind Drift splits into the northward flowing branch which meets the Humboldt Current and the southward flowing Cape Horn Current, providing ample heat to drive vaporization of the sea water, which results in onshore precipitation of 4, 000 7, 000 mm per year in the Chilean Andes.
