Motion compensating ship personnel transfer gangway - GIF

[ranald]

LOL Marv. I could imagine that. The sea looks like Moreton bay on a relatively calm day:not even any whitecaps!
Cheers

[Moby Duck]

One of the ways to ease sea sickness is to stand on the upper deck and focus on the horizon. In the 1970’s there were experiments done where horizontal stabilised laser beams were projected onto all bulkheads in operations rooms and mess decks. I believe that the Royal Canadian Navy might have done some these experiments. The theory was that the eye would automatically pick up this artificial horizon, the brain would have something fixed to relate to, and sea sickness would be eliminated. I understand that it worked well, but I have never heard of it being fitted as standard equipment in ships anywhere. Looking at a horizontal, stabilised gun barrel would presumably have a similar effect. However if the barrel was elevated to say 40 degrees, that might make things even worse as Marv and Frank can attest to.
Of course the only real way to prevent sea sickness that is 100% reliable for everyone, is to stand under a tree.

[mklotz]

One of the ways to ease sea sickness is to stand on the upper deck and focus on the horizon. In the 1970’s there were experiments done where horizontal stabilised laser beams were projected onto all bulkheads in operations rooms and mess decks. I believe that the Royal Canadian Navy might have done some these experiments. The theory was that the eye would automatically pick up this artificial horizon, the brain would have something fixed to relate to, and sea sickness would be eliminated. I understand that it worked well, but I have never heard of it being fitted as standard equipment in ships anywhere. Looking at a horizontal, stabilised gun barrel would presumably have a similar effect. However if the barrel was elevated to say 40 degrees, that might make things even worse as Marv and Frank can attest to.
Of course the only real way to prevent sea sickness that is 100% reliable for everyone, is to stand under a tree.

Staring at the horizon works for me if I stand near the ship's rail and look out so I can't see any part of the ship rotating relative to the horizon.

It was almost impossible to watch the gun barrels from the bridge without having the ship's bow as background. This meant I saw the ship appear to rotate around the gun barrels. The effect is almost instantly sickening, at least it was for me.

[Frank S]

Being that I was Army I wasn't aboard very many ships But I was detailed to travel from Germany to Sydney For prisoner escort in 75 to bring back a couple guys who had stayed there after their leave was over from Vietnam in 1969 To get there and back it was available military only. which wound up being several various sized Naval vessels and a couple of C 130 s. On the trip down the 3 of us learned real quick how not to get rolling sickness. Like Marv said when on deck if possible get somewhere where you don't see other objects if possible especially anything that was moving about the ship in a back forth motion. I found that after a couple of days I had gained my sea legs pretty well. Moderately rough seas didn't bother me near as much as the calmer times.

[Jon]

Same boat, with and without a Seakeeper gyroscopic stabilizer:



Around $42K. More: https://www.seakeeper.com/seakeeper_...seakeeper-5hd/

[Frank S]

makes a huge difference.

[Toolmaker51]

Seasickness is one element of sailing I never had. Whale boat, landing craft, frigate...even carriers. Now you might think 'carrier?', but they're huge! Yep they are. But way smaller in the South China Sea, green water breaking over the bow in real storms. Two occasions; first after being aboard just a few weeks. Guys up-chucking all over the place. I was loving it, felt like dirt biking. Got a nickname, that I still hear once in awhile, 40ish years later; this guy.
re: Post #6 http://www.homemadetools.net/forum/s...ght-lies-42152

[Also a shameless drive for uninitiated members to a riveting, dare I say spectacularly entertaining thread...Lol]

[marksbug]

living hear at the beach with lotsa boats around & even more partys & drunks on them that glass on the barrel isant impressive, Ive seen drunks do a better job of not spilling a drip in real rough seas...no gyro required, just dont give them a drink on land or it will be on you..... these days there is almost a solution for everything...almost.

[Rancher]

I was a boat captain in the Gulf of Mexico oil field and I would've killed for something like that on my vessel... LOL. At 200 feet long and 500 tons loaded, it would've had to be a bit bigger I suppose. But, it would've been appreciated. I weathered a direct hit from Tropical Storm Bill (or maybe it was Lily) offshore. I wonder how a system like that would've handled it? I don't think it could've possibly made it worse.

[Ed Weldon]

Neat idea. I hope you can turn that thing off and lock it down when installed in a well designed boat that has to respond to unusual sea conditions. Read about the survival of the 49ft. lobster boat Sea Fever and most of its crew in an Atlantic storm. Wooden Boat Magazine no.264, pg 90 (current issue). I would urge the makers of the device to explore such issues and offer appropriate guidelines for when and when not to turn it on.