Simulate the effects of nuclear blasts on naval ships Operation Sailor Hat

Remastered video of Operation Sailor Hat
"Operation Sailor Hat" was a series of tests conducted by the United States Navy in 1965 to simulate the effects of nuclear blasts on naval ships without using actual nuclear weapons. These tests used high-explosive charges to generate similar shock waves and pressures.
Key Details:
Objective: The primary goal was to understand how ships and their equipment would withstand the shock waves and pressures from a nuclear explosion, thereby improving ship design and survivability.
Location: The tests took place on Kahoolawe Island, Hawaii.
Explosives Used: Instead of nuclear devices, the tests utilized large quantities of conventional explosives. Each test used a 500-ton TNT explosive charge.
Tests: There were three main tests:
Test Alpha: Conducted on February 6, 1965.
Test Bravo: Conducted on April 16, 1965.
Test Charlie: Conducted on June 19, 1965.
Ships Involved: Various decommissioned ships were used as targets to study the effects, including the USS Atlanta (CL-104), a light cruiser, which was one of the primary test subjects.
Results: The data collected from these tests provided valuable insights into the structural integrity and resilience of naval vessels, leading to advancements in ship design and improved safety measures for naval operations.
"Operation Sailor Hat" is notable for its role in enhancing the understanding of the impact of explosive forces on naval ships, contributing to advancements in military engineering and ship design.

[@HHSTT]

The craters are still there. You can see them from a plane, too.

[@mortjoer]

20°30'15.3"N 156°40'44.2"W
Coordinates to put into google maps if anyone else is interested

[@maughan3061]

Sailors hat crater.
The pool at the bottom of the crater meets the criteria of an anchialine pond because it shows tidal fluctuation, has measurable salinity, and lacks surface connections to the sea. The water chemistry of this pool is similar to the ocean except silica is elevated and salinity is slightly depressed suggesting a small groundwater influence. The fauna is dominated by waterboatmen, an endemic shrimp and tubeworm, polychaetes, amphipods, an ostracod, gastropod, solitary ectoproct. anemone, flatworm and sponge. The atyid shrimp, Halocaridina rubra, is a characteristic species of Hawaiian anchialine systems and probably colonized this pool by active migration via the watertable. Colonization by the remaining fauna may have occurred by storm surf (for marine species) or with the wind.

[@markmark2080]

A crater can be clearly seen on the very SW tip/corner of Kahoolawe Island on google maps

[@evilferris]

Camera guy cutting it a little close there in the beginning. 😅

[@emtee40]

This video came out AWESOME!! So clear and detailed.

[@paulmichaelfreedman8334]

Ah, so it was conventional. I was wondering why no blinding flash.

[@jayg339]

Yeah I thought the same thing at first.

[@codymoe4986]

Or you could have simply read the video description.

[@jayg339]

@@codymoe4986 to be fair, the channel is about nuclear tests. The fact that it was a non nuclear test that somewhat looks like a mini nuke can throw viewers for a loop

[@garysmith9818]

Good video, thanks for sharing this, ATC.

[@rockets4kids]

0:12 - 0:30 == 18 seconds == 3.8 miles

[@josephastier7421]

Shock waves are supersonic and their speed increases with power. A distance estimate based on the speed of sound will be short.

[@rockets4kids]

@@josephastier7421 The blast wave goes subsonic rather quick and this can be ignored for a rough estimate of distance. If it makes you feel better, consider this a lower bound on stand-off distance here.

[@AtomicAerials]

Just more proof that Christopher Nolan and his effects team botched a proper depiction of Trinity.

[@kzm1934]

You know this is a non-nuclear explosion don’t you?

[@Hoju3942]

@@kzm1934 I think they're pointing out that even with convention methods you could still make an explosion that has the look and scale of a nuclear explosion, instead of the "50 gallons of gas with a firecracker taped to the side of the barrel" method they went with for the movie.

[@AtomicAerials]

@@kzm1934 so was the explosion filmed to represent Trinity, but it didnt look anything like Trinity. This video shows how closely a non-nuclear explosion could look, if done right.

[@AtomicAerials]

@@Hoju3942 Correct.

[@josephastier7421]

How they could muff the money shot that badly escapes me. I would have thought half the movie budget would have gone into getting it absolutely and amazingly correct.

[@walter9724]

500t 🤔 that had to be more surely. It looked way bigger, than just 500 ton
Very impressive especially the shockwave. Where was the crater it caused 🤔?

[@jayg339]

Fooled me at first thinking it was a mini-nuke. They should've used something like this for the movie Oppenheimer instead of lighting some gas on fire - would've looked significantly better than the end result.
A nuclear blast should not be that difficult to create/computer generate/film in the year 2024, but sure enough, most nuclear explosions in movies rarely look like the actual thing.

[@josephastier7421]

The barrage balloons falling back to Earth in shreds.

[@Mickey435]

Excellent video

[@Schubeedoobee]

wow... what a lovely video. thank you for scaling and sharing these videos. where was this test conducted at?

[@mariekatherine5238]

If I remember correctly, it was one of the very small, remote islands of Hawaii.

[@cyxman3940]

Je savais pas que certains essais avaient été tirés vers Hawaï, relativement petit pour celui ci, mais quand même, certains radionucléides doivent persister malgré le temps.

[@elkail2445]

What is the approximate TNT power?

[@MA-iv7ol]

It says 500 ton TNT charge. That's one big firecracker, imagine having to set up that massive explosive charge.

[@codymoe4986]

It was 500 tons of TNT...
So about 500 tons worth...

[@rael5469]

I'm surprised that there isn't a Google street view of the crater.

[@wimdsock9419]

20°30'15"N 156°40'43"W

[@KennyMiller-hu8pi]

Awesome video @Atomic Test Channel. This test here also could show a great way to neutralize a beach front, before an amphibious assualt. Keep up the great work ATC👍👍🇺🇸✌️

[@mrkaboomblast]

KABOOM!!! I love this video❤ 0:29

[@tomkrueger6556]

thats an TNT not a nuclear blast!

[@guerol7788]

Can you do Plumbbob Hood Unedited and Uncut 4K Please

[@cipherjoe9]

Damn, you could hear it all the way from out there on a plane

[@josephastier7421]

0:13 There is an Encore-like row of trees aligned with ground zero.

[@engchoontan8483]

what is EMP to ship's sensors.?
what is the effect on modern-ships(especially day-1 sink, recent american naval) thatdepends on electronics to stay afloat.?
what is the radiation levels on sailors.?
how long does it take for blisters to appear.?
why air-burst nuclear instea of direct-strike.?
why count radioactivity levels on each person.?
why mayhem is air-burst 2for EMP.?

[@parttime9070]

Only goats and some reef fish were harmed in this test..

[@b1lleman]

Didn't look nuclear , so I read the description which said the same 🙂

[@user-lf8jq7gl7x]

ノルマンディー上陸作戦時のドイツ軍の攻撃

[@gruntabro1]

There’s a big fn crater still there today

[@RobertJohnson-bj5lk]

Man, the US Military really beat the hell out of that little island off the coast of Maui.🏝

[@nicholasmaude6906]

Nice mushroom-cloud.

[@warlord76i]

So they gave a fuck about environment, (they still do) but EU want's me, to pay taxes on my gas boiler cuz i pollute.. WTF????

[@ionmacovei3300]

I a m a b i g f a n❤

[@ionmacovei3300]

Hi

[@ionmacovei3300]

Iam your 11th like

[@ConalRF]

ok

[@warlockvlogsdiaries]

Im under 4 hours

[@ionmacovei3300]

Im under 3 hrs