Electronic safe arm and fire device and method

A method for implementing an electronic safe-arm and fire system for use with a supercavitating cargo round (SCR) that is fired from a barrel of a weapon, the method comprising:

• temporarily electrically coupling a controller to an electronic safe-arm and fire device (ESAF) disposed in the SCR, wherein the controller is external to the barrel;
• receiving, at the controller, a plurality of inhibit-remove signals from a plurality of sensor systems that are disposed external to the barrel;
• after receiving the inhibit-remove signals, generating, by the controller, a high-voltage signal that charges a high-voltage capacitor of the ESAF;
• assessing a status of the SCR by:
• a) determining if the electrical coupling between the controller and the ESAF is severed;
• b) measuring a first g-load within the barrel, the first g-load indicative of whether the SCR has attained an acceptable velocity;
• and
• c) measuring a second g-load after the SCR has exited the barrel, wherein, as a function of the value of the second g-load, target impact is detected or not detected;
• and
• triggering or not triggering an energetic payload in the SCR based on the assessed status.