What is Navy: Definition and 37 Discussions

A navy, naval force, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, deter or confront piracy, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications (blue-water navy), and something in between (green-water navy), although these distinctions are more about strategic scope than tactical or operational division.

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  1. berkeman

    Why does this refueling pod on Navy fighter jets have a propeller?

    I was watching some videos of aircraft carrier cat shots of fighter jets today (don't ask), and was surprised to see in a slow-motion closeup shot that one of the underwing pods on an FA-18 had a propeller spinning on its nose. That seemed pretty strange to me, so I did some Google searching...
  2. S

    Gato / Balao Submarine "Can't" vs "Must" Surface on Dead Battery

    I've read a lot about Gato / Balao / Tensch class submarines, the ones America used in WWII, and I can't seem to sort out the specific consequences of a dead battery. A lot of you are diesel experts, so maybe someone here knows? Historical accounts are vague. Dead batteries are certainly a big...
  3. H

    Some questions from the navy oar mechanical comprehension

    I am looking at the following exam the mechanical comprehension part and I am having trouble with some of the questions. Here is the link https://drive.google.com/drive/folders/1ITIf6mx4RmDoL96IYoH-eY6-jQPh7CUv. I am having trouble with the following 3. A woman sits in a dragster the beginning...
  4. N

    MHB How Will Updated Navy UFO Reporting Guidelines Impact Data Collection?

  5. Samuel Scarborough

    Physics Navy or Air Force for Particle Physics

    I have been interested in particle physics since I was in High School, but I have struggled to keep my GPA high enough to get me into grad school and I want to serve my country. I decided that the military was the best route to get the experience I needed. I would like to work with lasers to...
  6. Auto-Didact

    News 'Chinese Navy ship seen carrying railgun'

    China says its navy is taking the lead in game-changing electromagnetic railguns Rest of the article is on the site. The news is available on multiple news outlets, including pictures on Twitter. I recall the US Navy was developing a railgun a few years ago, while Russia was still in the R&D...
  7. E

    Programs Maximizing Grad School Opportunities for Astrophysics After Military Service

    Hello all, I am going to college this fall and I will be studying physics with a concentration on astrophysics, I am a pretty good student and afterwards I will serve 5 years in the Navy as an officer. My question is, will the 5 years I spend in the Navy hinder my chances of getting into top...
  8. Robert House

    What is the impact of storms on submarines?

    Here is a scenario to further explain. Let's say I am traveling inside of a submarine. I travel within a depth of 100 to 600 feet deep or 4 to 19 atmospheres. How would I and my submarine be affected if there were a hurricane, tsunami, or hurricane above the ocean. Furthermore, does the...
  9. T

    Engineering I want to be an engineer for the Navy

    Should i be a mechanical engineer or an electronics or an electric? I am not sure of the pros and cons of each,any tips or pointers? I am 15 will be 16 in nov and i want to go through NROTC
  10. TheQuietOne

    Engineering Thinking of working towards being a Navy ME

    I am thinking of (working towards) being a GSM in the Navy, I'm only starting high school and love engineering. Any thoughts?
  11. S

    What advice can I find on Physics Forums for an aerospace engineering student?

    I've been lurking on these forums for years. I'm an ex-Navy aircraft mechanic turned aerospace engineering student. I'll mostly be using this forum for academic advice.
  12. L

    I want to design Missiles for the Navy -- what should I study?

    i would like to design and build missiles for the navy which upper school subjects should i take and then which uni corses should i follow them up with
  13. 256bits

    Can the US Navy really make jet fuel from seawater?

    This could be chemistry, but I'll put it here. Research by the US Navy to make jet fuel from seawater. And it works. And all we thought they did was stare down the bad guys. http://www.nrl.navy.mil/media/news-releases/2012/fueling-the-fleet-navy-looks-to-the-seas
  14. T

    Navy Nuclear Enlisted: Benefits, A School & STA-21

    Hi everyone, I am about to go to basic training before going in as a Nuke. I was hoping if I could get some answers to a few questions I have. What is the life like in A school? How long is the school and how much time do you have for other things like working out? What are the major...
  15. Greg Bernhardt

    News 12 killed in Navy Yard (DC) shooting

  16. Aaronvan

    Any Navy MM nuke vets in here?

    I'm suggesting to my nephew that he enlist and go for nuclear-qualified machinist mate position. I'd like to hear about post-Navy job opportunities in this field. Thanks.
  17. B

    Millitary Standard for Small Water Craft, Navy, Marines

    I curious if anyone out there knows what structural design standards are used when mounting components onto small Naval and Marine (Zodiac) style watercraft. I can find all kinds of loads and vibration criteria for large ships like Mil-std-810 and Mil-std-167 but all of them specify not to use...
  18. Evo

    News What Happened to the Navy Seals and Troops Shot Down by the Taliban?

    A tribute to the helicopter troops shot down by the taliban on Sat. I understand the persons responsible are dead. http://news.yahoo.com/photos/navy-seals-killed-in-helicopter-crash-1313105950-slideshow/ The pilot was from here...
  19. A

    US Navy Nuclear Program (Propulsion)

    Anybody here who has gone through the Navy's Nuclear Propulsion program? Wanting to get some insight on the program
  20. Mech_Engineer

    News Navy serviceman accused of trying to sell classified military documents

    Seriously, what's with the rash of leaking classified military documents?? http://www.washingtonpost.com/wp-dyn/content/article/2010/12/06/AR2010120607109.html
  21. mugaliens

    Whoops Navy drone strays from program

    http://news.yahoo.com/s/yblog_upshot/20100826/tc_yblog_upshot/renegade-unmanned-drone-wandered-skies-near-nations-capital" I'm glad the grounded the "fleet" until they figure out what happened. If anything, the Navy is usually fairly conservative with respect to their ops. I am all for...
  22. S

    Combatting Somali Pirates: Scholarly Perspectives on Naval Tactics

    Have any scholars suggested means of combating the issues of violence and Somali pirates via naval tactics (by the U.S. or other countries), and if so, what are their suggestions? Please, feel free to request clarification if necessary.
  23. Pythagorean

    Navy says gamers have improved fluid intelligence

    Navy says gamers have improved "fluid intelligence" http://kotaku.com/5457590/us-navy-video-games-improve-brains-fluid-intelligence "We have discovered that video game players perform 10 to 20 percent higher in terms of perceptual and cognitive ability than normal people that are non-game...
  24. T

    Engineering Is Navy Nuclear Engineering the Best Path for a Technical Engineering Career?

    Does anybody know anything about the Navy Nuclear Engineering program? Things like how competitive the program is? What kind of work would I do while in the Navy? and how do the skills learned in their program relate to work outside of the navy once done? Thanks,
  25. K

    Serving in the Navy: A Fire Controlman's Story

    Any of you fellow nerds in the armed forces? I am currently serving in the U.S. Navy as a Fire Controlman...currently a 2nd class petty officer (e-5). My job is HIGHLY technical, hence why I love the electronic and mechanical engineering forums here, since my job really involves both. My...
  26. R

    Navy Publication Claims LENR Fusion

    Here is the link to the Navy publication where they claim "evidence" of LENR--fusion at low activation energy input. http://www.newenergytimes.com/Library2/2008/2008BossTripleTracks.pdf Edit: and see here news release of American Chemical Society presentation...
  27. G

    Cold Fusion: US Navy makes breakthrough?

    http://news.yahoo.com/s/afp/20090324/ts_alt_afp/usscienceenergynuclear I guess we'll have to wait and see... Looks like it is being presented at the spring ACS meeting right now.
  28. P

    Career in the US navy as a nuclear science technician

    With only a bachelor's of science degree in physics, Is it possible to become a nuclear science technician with only a BS degree in physics?
  29. russ_watters

    Go Navy! Beat Army!Navy Fans: Cheer for Victory Over Army!

    I know no one but me cares, but whatever. This was funny though, I found it posted on foxsports.com's message board:
  30. I

    Anyone have any experience with electrical engineering in a Navy?

    I'm thinking very hard about joining the RAN (that's the Australian Navy) as a Weapons Electrical Officer - the systems are pretty interesting, and I've got no problems with a military environment - in fact, doing stuff "in the field" is a huge attraction - but I'd love anecdotes / info from...
  31. Evo

    Navy Tests Incredible Sci-Fi Weapon

    Good Grief. http://www.livescience.com/technology/080201-electromagnetic-record.html Then the Germans are working on evironmentally friendly explosives. Environmentally Friendly Bombs Planned...
  32. P

    So I joined the Navy to be a Nuke.

    I just joined the Navy as a Nuclear Engineer. I was in college before majoring in Nanotechnology. I had failed calc III (lazy) and was feeling out of place. I had so many options in my face that I didn't feel like I could dedicate myself to something. I am fascinated in physics...
  33. A

    Equations of motion and Navy deck guns

    Dear All, Currently I'm working out a formula for Destroyers in the online game BattleGround Europe to be able to blast inland towns with their deck guns. To do this I've had to use the equations of motion. I could use some help on dechipering the final part of the clue. Points to note are...
  34. M

    Navy Nuke Student lookin for information

    Im currently a Navy Fireman at NNPTC, I am already experiencing the school and getting by... but i wanted to know, what kind of out look I am looking for in the future as far as civilain job markets or staying in the navy... thanks
  35. D

    Navy Recruit Seeking Career Advice

    I'm currently enlisted in the military and I have signed up for the Navy's nuclear school. I've heard that it has challenging coursework and the demands are high, which is why I was initially attracted to obtaining that job rating. Sometime down the road, I'm going to have to make a choice about...
  36. T

    Programs Astrophysics Degree While in the Navy

    Hello all - I was wondering if anyone knew of any GOOD colleges that offered all or at least part of a Bachelor's degree in Astrophysics via distance learning. I'll be transferring to a sea duty here, and could just wait to go straight to college, but I'd like to get at least something done...
  37. Greg Bernhardt

    The SimCity navy has a rigorous training program

    The SimCity navy has a rigorous training program. In order to graduate from the naval academy, cadets must enter a pool and fight sharks. Today, a group of cadets was tested. Each cadet put on his mask, snorkel, and two flippers; and armed himself with a knife. Then the cadets jumped into the...