where do you jump from in long jump
Long jump At the elite level, competitors run down a runway (usually coated with the same rubberized surface as running tracks, crumb rubber also vulcanized rubber—known generally as an all-weather track) and jump as far as they can from a wooden board 20 cm or 8 inches wide that is built flush with the runway into a pit filled with finely ground gravel or sand. If the competitor starts the leap with any part of the foot past the foul line, the jump is declared a foul and no distance is recorded. A layer of plasticine is placed immediately after the board to detect this occurrence. An official (similar to a referee) will also watch the jump and make the determination. The competitor can initiate the jump from any point behind the foul line; however, the distance measured will always be perpendicular to the foul line to the nearest break in the sand caused by any part of the body or uniform. Therefore, it is in the best interest of the competitor to get as close to the foul line as possible. Competitors are allowed to place two marks along the side of the runway in order to assist them to jump accurately. At a lesser meet and facilities, the plasticine will likely not exist, the runway might be a different surface or jumpers may initiate their jump from a painted or taped mark on the runway. At a smaller meet, the number of attempts might also be limited to four or three.
United States Army Airborne School A soldier must complete 5 jumps, normally including at least one night jump, to graduate Airborne School. During jump week, the schedule varies and soldiers will jump in a variety of configurations from unloaded Hollywood to fully equipped and loaded Combat jumps. Jump week can seem chaotic, with a large group of soldiers gathered in the ready-room waiting to be loaded onto the aircraft one chalk at a time. Immediately after landing on the Drop Zone (DZ), the soldiers collect their parachutes and other gear and meet back at the rally point on one side of the DZ, where they wait for a bus to take them back to Lawson Army Airfield to get ready for their next jump.