Dynamics all over. The yellow shirt (flight deck operations) on the left is directing the S-3B in position at the catapult under the careful eyes of two white shirts (deck safety officers), walking left and right of the wings. A green shirt (equipment) in the middle shows a weight board to the catapult officer (sitting right) with the weight of the aircraft projected. The catapult officer programmes the catapult's steam to the right level in which the Viking can reach its take-off speed. The yellow shirt shooter (also right) will then be ready for its procedure to launch the aircraft.