Aerial Delivery
Morning Coff.
I did wait a suitable interval to see if any other mug would take the bait, honest.
Air Drop is a team effort for the entire crew and is a meld of science and art.
In essence the boxes are calibrated by telemetry (in my day Aberporth) for ballistics. The teams at Boscombe then would do the sums for weights and drop heights. The JATE boys would then trial the kit for procedures and then some poor sap at Group would collate all this **** in a page inserted in the book of words given to the crew. The science was the height, speed, flap setting and release sequence. (Don't ask about Para Wedge) for each load and type of chute. The art was where to put it. When the box finished its travel from comfortable rest at its tie down station to being arrested in its death dive by the parachute it was at the mercy of the wind this is called the Still Air Forward Throw. All O.K. so far?
The windage is split into head/tail component and left/right. On the run in to the drop zone the crew configures the aircraft in the approved mode as briefed.The Nav then states the left/right displacement and the Captain puts him there allowing for drift. The Nav then either used the SCNS to do the work or gazed out the window till the Calculated Air Release Point was reached and called the lights. Robert is your Uncle.
For complete jam strangling blind luck observe Page 35 of this thread post#689
Now Jedi you are.