The US Navy uses much of this as well. For example, here's an aircraft carrier launch from inside the "bubble" (the control area that actually triggers the ste

The US Navy uses much of this as well. For example, here's an aircraft carrier launch from inside the "bubble" (the control area that actually triggers the steam catapult). The officer repeats the mantra aloud for each aircraft and points at the people he's checking. If you watch a similar video taken above deck you can see each responsible person point at the system they are monitoring before giving the thumb's up. https://www.youtube.com/watch?v=MMwrMDd2gUE https://www.youtube.com/watch?v=MMwrMDd2gUE The comments have an explanation of each phrase in the mantra (e.g., "104 set match" refers to a steam power of 104 (units unclear) and that it matches the board for cross-checking).