Defense Issues

Military and general security

Archive for May, 2017

Terrorism in Manchester

Posted by Picard578 on May 24, 2017

Wandering Through The Night

The deliberate suicide bombing of an Ariana Grande concert in Manchester aimed at western youths has, once again, caught the multi cultural crowd by complete surprise. Evidently the last attack on a concert in Paris was completely unrelated or something.

While this should not be a news flash to anyone, terrorists target where people gather. The traditional targets are workplaces, schools, and events. Or like the San Bernadino terrorists, an event at work for a twofer. Schools, workplaces, events. The “normal” gathering places for people, and when a terrorist wants to kill a lot of people that is where they go.

Beslan was a school, and Beslan was much worse than Manchester. However that visceral reaction to those who have not been jaded by constant contact with the middle east is a bit more than the normal reaction to a terror attack. Because it was aimed at the children.

Children…

View original post 331 more words

Advertisements

Posted in news | 2 Comments »

The Quantum Behavior of the 5.56×45 NATO Round

Posted by Picard578 on May 24, 2017

Wandering Through The Night

Almost since introduction the 5.56×45 NATO has exhibited the qualities of Schrodinger’s Cat, simultaneously being an ineffective battle round while simultaneously being terribly effective to the point where people keep trying to ban it for civilian use. Thousands upon thousands of words, and hours of argument, for both sides have been spent on the subject.

The 5.56 naysayers routinely pull out ballistic tables and show all sorts of lovely numbers about energy in foot pounds remaining at range: http://usacac.army.mil/CAC2/MilitaryReview/Archives/English/MilitaryReview_20120831_art004.pdf and it should be noted that this article makes the “post hoc” fallacy that the 5.56×45 is inadequate because the M14 EBR program was used. The author makes no analysis of what the mix ratio was, and how those rifles were employed, and other tactical considerations. In Afghanistan the SEALs of Seal Team 10 often considered the 7.62×51 inadequate as a sniper rifle platform since they had the 300 Win Mag…

View original post 1,582 more words

Posted in weapons | 3 Comments »

Unconventional fast ships

Posted by Picard578 on May 16, 2017

Overview

Modern conventional fast ships rarely go over speeds of 30 knots, simply because conventional hull forms do not allow higher speeds without unacceptably powerful and complex powerplant (a la LCS), which then means less volume and displacement avaliable for other necessities. High speeds are also very rarely necessary, which means that most ships can sacrifice high speed in exchange for greater firepower, survivability, or endurance. However, combat and peacetime operations have always required ships capable of achieving high speeds, for purposes such as reconnaissance, surprise attacks and combat in general, especially in littoral waters where small hulls dominate and enemy can appear from basically anywhere. High speed is also desireable for deployment of rapid-response forces as an answer to an unexpected crisis, and as airlift is of limited capacity, high-speed sealift is desireable. This means balancing out requirements for high speed, range and high payload.

In conventional ships, developing ships with higher length-to-beam ratio allows installation of more powerful powerplant for a miniscule increase in drag, thus allowing both longer range and higher top speed. Conventional hull form also has major advantages in range, and in that they can be of basically any size. However, they cannot economically achieve very high speeds, which is why specialized – unconventional – hull forms are required for ships that have such requirement. In all these, the goal is to minimize contact with surface of the water. Hull forms can be divided into: Read the rest of this entry »

Posted in technology | Tagged: , , , , , , , , , , , , , , | 8 Comments »

Naval mines

Posted by Picard578 on May 1, 2017

Mines

Naval mine are a significant danger to both combat operations and transport of men and equipment over the sea. This is an especially important problem for the coastal navies, due to restricted areas in which they operate.Over 300 types of mines are produced by 30 countries, and many more have them in use. Mines cause damage disproportionate to their price, and anti-mine warfare efforts increase this price even more. Read the rest of this entry »

Posted in weapons | Tagged: , , , , , , , , , , | 4 Comments »