John Salka describes the dead load as a versatile hose load that does what a preconnect can’t.

The following is a June 5, 2015 U.S. Navy video of dead load tests of the Electromagnetic Aircraft Launch System (EMALS) on the Gerald R. Ford (CVN-78).

HII has started testing the catapults on aircraft carrier John F Kennedy with dead-load launches. (HII) HII's Newport News Shipbuilding (NNS) unit has started testing of the Electromagnetic ...