how do you think submarines launch these missiles?
Looks like a test of submarine launched canister. They can be launched from surface containers as well.
And TIL : Trident ICBM missiles are launched from a depth of 200 feet when a rocket engine from a sidewinder missile vaporizes about 50 gallons of water into steam which motivates the 36000 pound rocket to the surface in a bubble. The rockets motors ignite when sensors detect a negative forward acceleration at about 30 feet out of the water. During this whole process the ICBM does not get wet.
I had something like that for my daughters rabbit. Id move it around the backyard, the rabbit would eat the weeds(they love dandelions) and grass and Id move it a day or so later. It was like a organic roomba for my backyard. It would take about a month to cover the whole area and then start over again.
Looks like a test of submarine launched canister. They can be launched from surface containers as well.
And TIL : Trident ICBM missiles are launched from a depth of 200 feet when a rocket engine from a sidewinder missile vaporizes about 50 gallons of water into steam which motivates the 36000 pound rocket to the surface in a bubble. The rockets motors ignite when sensors detect a negative forward acceleration at about 30 feet out of the water. During this whole process the ICBM does not get wet.
OR
An Awesome Cheese Grater.