7英寸的Mk XII艦炮抬升至仰角40度,與相同目標交戰約37秒。(A 240 mph target, at 12 thousand feet altitude could expect to be under fire for about 58 seconds, from the time it enters
Aoki, the ultimate source of these figures, uses the term "seconds of UT1" instead of "seconds of mean solar time". Aoki, et al., "The new definition of
[2009-01-03]. (原始内容存档于2009-02-04). May 01, 2009. May 1, 2009: The Day in 100 Seconds. YouTube. 2009-05-01 [2009-05-08]. (原始内容存档于2015-12-18). 卡根上任美国大法官. [2010-08-08]