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"Let Our Sailors Sleep?" Topic

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Personal logo Editor in Chief Bill The Editor of TMP Fezian20 Jul 2017 7:33 p.m. PST

A common surface watch rotation is five hours on/ten hours off. These rotationsóand the resulting long periods of wakefulnessócan disrupt the body's normal sleep cycle and cause both short- and long-term fatigue. Fatigue reduces alertness and has been shown to have similar effects on human performance as alcohol. Going without sleep for 24-36 hours results in the same degradation as a blood alcohol level of 0.08…


Personal logo Cacique Caribe Supporting Member of TMP20 Jul 2017 9:36 p.m. PST

I don't know how they do it. I need a full 8-hours of beauty sleep a night or I'm a mess the next morning. That and a midday nap.


pzivh43 Supporting Member of TMP21 Jul 2017 3:34 a.m. PST

I rarely got more than 6 hours of sleep when underway. But the body adapts, I feel. And you are almost always part of a watch team so you work off each other to keep alert and on task.

bsrlee21 Jul 2017 4:13 a.m. PST

Traditionally the watch rotation was 4 on, 8 off, 8 on, 4 off. For months on end. Its a killer but they fought 2 World Wars with it, particularly the Navy & Army on active duty.. Its also a reason why today the Navy rotates its personnel to shore duty every few years.

Lion in the Stars21 Jul 2017 8:42 a.m. PST

Submarines it was 6 on 12 off, but that plays unholy hell with your circadian rhythms. Pretty sure I have non-24 now.

One big problem on surface ships is that people are expected to be up when the sun is. None of this "hey, I was on the midwatch (00-06) and will be on the evening watch (18-00), I need to sleep!"

Personal logo Cacique Caribe Supporting Member of TMP21 Jul 2017 9:40 a.m. PST

I wonder how many hours the PLA/PLN guys are getting these days:

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Old Glory Sponsoring Member of TMP21 Jul 2017 10:42 p.m. PST

I do not recall specific "hours" or "shifts" from my days in the USMC back in the 60s -- but now days I'm up at the Crack of 10 and I don't drag back in until 4 or 5 PM !!!

Russ Dunaway

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