Berkeley CSUA MOTD:Entry 28072
Berkeley CSUA MOTD
 
WIKI | FAQ | Tech FAQ
http://csua.com/feed/
2025/07/12 [General] UID:1000 Activity:popular
7/12    

2003/4/10 [Reference/Military] UID:28072 Activity:high
4/11    For you military types.  Is there a material in existence that
        could practically protect military helicopters from small-arms
        fire? -allenp
        \_ Yes.  Napalm.  -John
           \_ Ha Ha. Hello John, Napalming a whole battlefield is
              *NOT* practical.  I was wondering if armored helicopters
              exist, or do they cost too much or move too slow. -allenp
              \_ in Vietnam, they first laid fire over much of the battle
                 field, then they let the Hueys come after them.  Cobra
                 helicopter escorts.
                 \_ I stand corrected. -allenp
        \_ Yes, aluminum.
           \_ Aluminum?  How does it help? -allenp
              \_ It absorbs the ballistic energy, like like any kind
                 of armor. A 7.62mm bullet will not penetrate 12" of
                 of armor. A 7.62mm bullet will not penetrate 2" of
                 aluminum. I guess they are using ceramic more now:
                 http://www.ceradyne.com/apdef.htm#helicopterarmor
        \_ many helicopter gunships do have armor.  The Hind, Apache, ...
           \_ Apache armor:
              http://people.howstuffworks.com/apache-helicopter5.htm
2025/07/12 [General] UID:1000 Activity:popular
7/12    

You may also be interested in these entries...
2012/2/29-3/26 [Reference/Military] UID:54320 Activity:nil
2/29    "New Navy Railgun Tests Leading to Ship Superweapon by 2020"
        http://www.csua.org/u/vmd
        - Why are there fire and smoke when the bullet is propelled by EM
          force?
        - "The railgun could hit the same distant targets that Navy missiles
          strike today, he said."  Then what's the point of inventing this new
	...
2012/1/8-2/6 [Reference/Military] UID:54283 Activity:nil
1/8     "Amid tensions, U.S. Navy rescues Iranians from Somali pirates"
        http://www.csua.org/u/v5i (news.yahoo.com)
        "... the rescue operation was carried out by a ship belonging to the
        very U.S. Navy aircraft carrier strike group that Iranian army
        officials had earlier boasted of evicting from Gulf waters.
        \_ "U.S. ship rescues Iranian fishermen - again"
	...
2011/10/19-11/8 [Reference/Military] UID:54198 Activity:nil
10/19  "Clerk kills would-be robber who grabbed daughter"
       http://news.yahoo.com/clerk-kills-robber-grabbed-daughter-102801527.html
       She must have been a sharpshooter or in the army or something.  Who
       would shoot a crook when he's holding your kid right next to him?
       \_ This must be /.  Didn't read TFA?  The kid was in the
          stroller and the thief grabbed the stroller, not the kid.
	...
2010/7/26-8/25 [Reference/Military] UID:53898 Activity:low
7/25    Friend of mine's thinking about joining the armed forces.
        He was thinking either marines or army.  I was going to say that
        marines are far more dangerous, but then I stopped and thought of
        the Three Block War vs. the Navy shelling the crap out of Iraq
        before the  marine had to storm it; is the notion reversed now?
        Does the army has a tougher job/more dangerous job than the marines
	...
2009/5/26-6/2 [Reference/Military, Politics/Foreign/Asia/Others] UID:53046 Activity:low
5/26    "Photo of US soldier in pink boxers turns iconic"
        http://news.yahoo.com/s/ap/20090522/ap_on_re_us/us_media_pink_boxers
        Not a single mention about wearing a red shirt in a battlefield screams
        "Shoot me!" and endangers one's comrades.  He should have covered it up
        or taken it off at the first opportunity.
        \_ And how much war experiance do you have?  Hint, playing Red Alert
	...
Cache (249 bytes)
www.ceradyne.com/apdef.htm#helicopterarmor
The page cannot be found The page you are looking for might have been removed, had its name changed, or is temporarily unavailable. Please try the following: * If you typed the page address in the Address bar, make sure that it is spelled correctly.
Cache (1788 bytes)
people.howstuffworks.com/apache-helicopter5.htm -> science.howstuffworks.com/apache-helicopter5.htm
As we saw earlier, the helicopter is specifically designed to fly low to the ground, hiding behind cover whenever possible. The Apache is also designed to evade enemy radar scanning. If the pilots pick up radar signals with the onboard scanner, they can activate a 47 radar jammer to confuse the enemy. Department of Defense The Apache is also designed to evade 49 heat-seeking missiles by reducing its infrared signature (the heat energy it releases). The Black Hole infrared suppression system dissipates the heat of the engine exhaust by mixing it with air flowing around the helicopter. The cooled exhaust then passes through a special filter, which absorbs more heat. The Longbow also has an infrared jammer, which generates infrared energy of varying frequencies to confuse heat-seeking missiles. Some areas are also surrounded by 50 Kevlar soft armor for extra protection. The cockpit is protected by layers of reinforced armor and 51 bulletproof glass. The area surrounding the cockpit is designed to deform during collision, but the cockpit canopy is extremely rigid. In a crash, the deformation areas work like the crumple zones in a car -- they absorb a lot of the impact force, so the collision isn't as hard on the crew. The pilot and gunner seats are outfitted with heavy Kevlar armor, which also absorbs the force of impact. With these advanced systems, the crew has an excellent chance of surviving a crash. Army Flying an Apache into battle is extremely dangerous, to be sure, but with all its weapons, armor and sensor equipment, it is a formidable opponent to almost everything else on the battlefield. It is a deadly combination of strength, agility and fire power. For more information about Apache helicopters and other weapons, check out the links on the next page.