before approaching platform, rig sea pup elevating self propeller must be detect wind current and sea current cause sea pup have engine only 1200 hp is independent and other 2 propeller is connect with jack up system so is very important and to be carefully to maneuver, sea pup have 4 legs and height each leg 73 meters from water line, so is wind speed more 20 knot is influent about maneuver and spud can in under water around 1 meter if sea current more 1 knot is prohibit to maneuver too, but all external problem if versus or current direct from forward sea pup position is help maneuver. made by capt.luthfie
