Free Republic
Browse · Search
VetsCoR
Topics · Post Article

Skip to comments.

The FReeper Foxhole's TreadHead Tuesday - M113 Armored Personnel Carrier - Nov. 2nd, 2004
globalsecurity.org ^

Posted on 11/01/2004 11:31:49 PM PST by SAMWolf



Lord,

Keep our Troops forever in Your care

Give them victory over the enemy...

Grant them a safe and swift return...

Bless those who mourn the lost.
.

FReepers from the Foxhole join in prayer
for all those serving their country at this time.


.................................................................. .................... ...........................................

U.S. Military History, Current Events and Veterans Issues

Where Duty, Honor and Country
are acknowledged, affirmed and commemorated.

Our Mission:

The FReeper Foxhole is dedicated to Veterans of our Nation's military forces and to others who are affected in their relationships with Veterans.

In the FReeper Foxhole, Veterans or their family members should feel free to address their specific circumstances or whatever issues concern them in an atmosphere of peace, understanding, brotherhood and support.

The FReeper Foxhole hopes to share with it's readers an open forum where we can learn about and discuss military history, military news and other topics of concern or interest to our readers be they Veteran's, Current Duty or anyone interested in what we have to offer.

If the Foxhole makes someone appreciate, even a little, what others have sacrificed for us, then it has accomplished one of it's missions.

We hope the Foxhole in some small way helps us to remember and honor those who came before us.

To read previous Foxhole threads or
to add the Foxhole to your sidebar,
click on the books below.



M113 Armored Personnel Carrier




The original M113 Armored Personnel Carrier (APC) helped to revolutionize mobile military operations. The vehicles were able to carry 11 soldiers plus a driver and track commander under armor protection across hostile battlefield environments. More importantly, the new vehicles were air transportable, air-droppable, and swimmable, allowing planners to incorporate APCs in a much wider range of combat situations, including many "rapid deployment" scenarios. The M113s were so successful that they were quickly identified as the foundation for a family of vehicles. Early derivatives included both command post (M577) and mortar carrier (M106) configurations.



Originally, the M113 APC was intended merely as a troop carrier-a means of transport. Doctrine stated that the infantry were to dismount and engage the enemy. It soon became apparent that the firepower of the .50-caliber machine gun, coupled with the vehicle's armor protection and mobility, produced a shock effect on the enemy. Some advisers and commanders realized that since the Viet Cong had no effective weapons to fight armor the M113 could be used as a mounted armored fighting vehicle.



Perhaps the best way to judge the success of the M113 is to examine the enemy reaction to it. The Viet Cong were not prepared for M113's when the South Vietnamese first used them in mid-1962. The Viet Cong doctrine stressed occupation of dug-in positions in the face of APC assaults, and enemy soldiers were soon learning crude methods of destroying the M113. Holes the size of an APC, nicknamed tiger traps by advisers, were soon found in delta roads. Observing the difficulties that APC units had in crossing canals, the Viet Cong used canals as obstacles in their positions, and frequently they mined possible crossing sites.

In 1965 the Viet Cong published a comprehensive and fairly accurate training document entitled Attack on M113 APC. This document listed characteristics of the APC; organization, equipment, and strength of mechanized units; tactics used by APC units; methods of attacking an APC; and some training techniques. Included were instructions for using the new antitank weapons. In the spring of 1963 the Viet Cong had begun to use recoilless rifles with 57-mm. high explosive, antitank rounds, and the number of hits on M113's had increased dramatically by the fall of 1963. Although the rounds often penetrated, they did not usually destroy the M113. Late in that year, armor-piercing .30-caliber ammunition along with a large number of automatic weapons was found in a Viet Cong cache in the delta. The extent of the Viet Cong antiarmor equipment became apparent when, in August 1963, an armor-piercing grenade was discovered. The first 75-mm. recoilless rifle was captured in September, and in December the first M113 was damaged by a 75-mm. round. This arms buildup continued into 1964, when a variety of mines, both pressure and electrically detonated, accounted for the majority of damaged and destroyed vehicles.



By 1965 the Viet Cong was using armor-defeating weapons as low as company level among regular and provincial units. Newly organized weapons platoons, companies, and battalions armed with 57-mm. and 75-mm. recoilless rifles and .50-caliber machine guns were issued the rocket propelled antitank grenade, RPG2. For several years this weapon with its B40 warhead was the principal enemy weapon against armor. Eventually, the RPG2 was replaced by the RPG7, an improved antitank grenade with a more lethal warhead, greater range, and a better sight.



The Vietnam-era M113 ACAV (Armored Cavalry Assault Vehicle) version is a very important chapter in the long and proud history of the M113. Following lessons learned, in particular the loss of 14 ARVN .50 cal gunners at the Battle of Ap Bac in January 1963, the standard M113 was upgraded both in armament and armour protection to the M-113.



Two M60 GPMG's were mounted, one either side of the rear hatch, and fitted with protective gun shields. An FMC-designed armoured gun shield/turret combination was also added to the commanders cupola to afford him protection when manning the .50 cal machine gun. This vehicle was designated the M-113 Armored Cavalry vehicle (ACAV).



As a result of lessons learned, when the 11th ACR shipped to RVN their M-113's were fitted with the ew FMC gun shields and had additional M-60's mounted either side of the rear top hatch. The 11th ACR coined the term ACAV which soon became the 'official' designation of this modified M-113.

M113A1 Armored Personnel Carrier




The first major upgrade came in 1964 with the introduction of the M113A1 package which replaced the original gasoline engine with a 212 horsepower diesel package. The new power train was soon incorporated into the existing vehicle family as the M113A1, M577A1, and M106A1, as well as several new derivative systems. Some of these new derivatives were based on the armored M113 chassis (the M125A1 mortar carrier and M741 "Vulcan" air defense vehicle) while others were based on an unarmored version of the chassis (including the M548 cargo carrier, M667 "Lance" missile carrier, and M730 "Chaparral" missile carrier).

M113A2 Armored Personnel Carrier




Continuing modernization efforts led to the introduction of the A2 package of suspension and cooling enhancements in 1979. As with previous enhancements, these upgrades resulted in further proliferation of the FOV.

M113A3 Armored Personnel Carrier


Most of the M113 family that saw service during Desert Storm were underpowered A2 level vehicles. M113A3 that were in the conflict kept pace with the Abrams equipped maneuver forces. Since 1987 the PM office has been modernizing the M113 fleet to the A3. This block modification should be completed for FP1 by 2001 with current funding.



Today's M113 fleet includes about four thousand M113A3 vehicles equipped with the most recent recent A3 RISE (Reliability Improvements for Selected Equipment) package. The standard RISE package includes an upgraded propulsion system (turbocharged engine and new transmission), greatly improved driver controls (new power brakes and conventional steering controls), external fuel tanks, and 200 AMP alternator with 4 batteries. Additional A3 improvements, include incorporation of spall liners and provisions for mounting external armor.



The M113A3, a full-tracked armored personnel carrier provides protected transportation and cross country mobility for personnel and cargo. A light armored vehicle weighing 27,200 pounds, it carries 11 infantry personnel in addition to the vehicle driver and track commander. It is capable of sustained speeds of 41 mph on level roads and accelerates from 0 to 35 mph in 27 seconds (this compares to 69 seconds for the M113A2).

The M113A3 is a product improved version of the M113A2 with improved transmission and engine. The U.S. Army first identified the need to up-power the M113A2 carrier in the mid-1970s. This need was driven by increases in vehicle weight and a requirement to increase the mobility and survivability of the system. As a result, the "RISE" powertrain was developed and tested at Yuma and Aberdeen Proving Grounds. However, application of the new powertrain was deferred due to a lack of funds.



In 1984 a decision was made to incorporate the RISE package, improved driver controls, spall liners, external fuel tanks and provisions for installation of an external armor kit on an M113 chassis. Additionally, a bolt-on armor kit providing 14.5 mm ballistic protection was developed and tested. Except for the mounting provisions the external armor appliquÈ was not incorporated for production.

The new X200-4/4A hydrostatic steer transmission permits use of a more powerful engine, the 275 HP turbocharged Detroit Diesel 6V53T, and eliminates the transfer case and controlled differential. The RISE powerpack increases fuel economy, acceleration, hill climbing speed and braking capabilities and allows the vehicle to maintain speed through corners by accelerating the outer track rather than braking the inner track as on the A2. The increase in horsepower also allows installation of an external armor kit (which increases the gross vehicle weight to 31,000 pounds) and provides mobility comparable to currently fielded vehicles such as the M1 tank and M2/M3 Bradley Fighting Vehicles.



Steering is improved with an automotive-type steering yoke and foot brake arrangement which improves driver control, lessens fatigue and simplifies driver training from that of the A1/A2 steering/braking laterals. Due to load matching ability and increased steering capability, cross country performance is also improved.

Crew survivability is increased by the addition of spall suppression liners and locating the fuel tanks externally, on the rear of the vehicle. The inside of the vehicle (sides, roof and rear) are covered with spall suppression liners which limit troop injuries from the effect of overmatching weapons by restricting the spread of spall when a round penetrates the hull. External fuel tanks free up 16 cubic feet of usable space inside the vehicle and reduce the fire hazard inside the crew compartment. Two tanks and independent valving provide redundancy in the fuel system allowing continued operation when one tank is damaged.



External differences between M113A2 and M113A3 include external fuel tanks and provisions for the installation of an add-on-armor kit.

The M113A3 was type classified Standard. All new APC vehicles produced since 1987 and all converted vehicles since 1989 are the A3 variant. Vehicles have been fielded both in the U.S. and in foreign countries. The M113A3 was initially fielded in 1987 and U.S. production of new M113A3s was completed in 1992. M113A3s are currently being produced for Thailand as a direct sale. Conversion of M113A2 vehicles to M113A3 vehicles has been underway at United Defense, L.P. since 1994. Previously, conversions of M113A2 vehicles to M113A3 vehicles were completed at Red River and Mainz Army Depots, as well as in Korea.



The future M113A3 fleet will include a number of vehicles that will have high speed digitial networks and data transfer systems. The M113A3 digitization program supports the Army's Modernization Plan by applying applique hardware, software, and installation kits and hosting them in the M113A3 FOV. Current plans call for these systems to be integrated into the M113A3 FOV by the year 2006.

M113A3+/M113A4 Infantry Fighting Vehicle Light (IFVL)




The Infantry Fighting Vehicle Light (IFVL) is a light infantry fighting vehicle based on the proven MTVL chassis and featuring a one-man stabilized turret is convertible from existing assets or available as new production. It offers the exceptional automotive performance of the MTVL chassis combined with the substantial firepower of the stabilized 25mm chaingun and 7.62mm machinegun. The vehicle is powered by a 400hp 6V53TIA electronically controlled engine driving through the latest X200-4B cross drive transmission. The IFVL uses many common M113/MTVL components that help insure high reliability, availability, and maintainability, plus a proven design, common maintenance techniques and an established logistics infrastructure. Applique armor provides the flexibility to alter the armor package as the threat level changes or technology advances. The vehicle carries a crew of two or three and up to 10 dismount soldiers. As with all M113 variants,it is roll-on/roll-off transportable on a C130.



TOPICS: VetsCoR
KEYWORDS: acav; apc; armor; freeperfoxhole; m113; personalcarrier; tanks; treadhead; veterans; vietnam
Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-80 ... 161-171 next last
To: alfa6

Mornin' alfa6.


41 posted on 11/02/2004 11:21:31 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: bentfeather

Good afternoon to you miss tankette.


42 posted on 11/02/2004 11:22:08 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 13 | View Replies]

To: The Mayor

Thank you Mayor.


43 posted on 11/02/2004 11:24:16 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 14 | View Replies]

To: bentfeather
Yes, The Sam and Snippy Store

:-)
44 posted on 11/02/2004 11:27:22 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 15 | View Replies]

To: snippy_about_it
Mornin', snippy.

A momentous day in the history of the Republic is at hand. It's a great day to be an American.

I'm staying safe. Saw something green flash across the sky the other night. I was told it was a rocket but it didn't look like one to me. Didn't hit anything as far as I know. If that is the best they can do I'll be pretty safe.

The TCN's down at the Embroidery Shop got all stupid on me when I tried to get those patches made, so that project is on hold until the IQ level down there rises.

45 posted on 11/02/2004 11:33:12 AM PST by Cannoneer No. 4 (Kandahar Airfield -- “We’re not on the edge of the world, but we can see it from here")
[ Post Reply | Private Reply | To 6 | View Replies]

To: RasterMaster
RasterMaster,

We are greatful for your Uncle Roger Conner and his service to our country. I haven't forgotten the thread we did on the Battle where he gave his life and you shared many memorable stories and pictures with us.

The Battle of Ap Tau O (6/8/1966)


46 posted on 11/02/2004 11:45:34 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 17 | View Replies]

To: Ragtime Cowgirl

Thanks for the pic RC.


47 posted on 11/02/2004 11:45:59 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 18 | View Replies]

To: Professional Engineer

Awwww. A jack russell. Such cute pups.


48 posted on 11/02/2004 11:46:31 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 19 | View Replies]

To: Samwise

Cool video, thanks Samwise.


49 posted on 11/02/2004 11:47:03 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 20 | View Replies]

To: shield

Done!


50 posted on 11/02/2004 11:48:08 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 32 | View Replies]

To: Professional Engineer

LOL. Isn't scrounging fun!


51 posted on 11/02/2004 11:48:38 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 34 | View Replies]

To: Matthew Paul

Hi Matthew. I don't even think I'll watch the news until late tonight. Too nervous.


52 posted on 11/02/2004 11:49:28 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 37 | View Replies]

To: Cannoneer No. 4
If that is the best they can do I'll be pretty safe.

That's comforting to hear. Don't get overly comfortable though, stay on guard.

This is a very nervouse day. It's a shame someone of kerry's caliber is even close.

Too bad about the IQ level at the embroidery shop. LOL. We've time though.

Thanks for checking in.

53 posted on 11/02/2004 11:52:16 AM PST by snippy_about_it (Fall in --> The FReeper Foxhole. America's History. America's Soul.)
[ Post Reply | Private Reply | To 45 | View Replies]

To: snippy_about_it; SAMWolf
Congratulations on the Sam and Snippy Store! I hope it's a great success.
54 posted on 11/02/2004 12:12:10 PM PST by colorado tanker ("medals, ribbons, we threw away the symbols of what our country gave us and I'm proud of that")
[ Post Reply | Private Reply | To 8 | View Replies]

To: SAMWolf

Your ballot is in the box? My ballot is in the computer chip - I hope!


55 posted on 11/02/2004 12:14:39 PM PST by colorado tanker ("medals, ribbons, we threw away the symbols of what our country gave us and I'm proud of that")
[ Post Reply | Private Reply | To 24 | View Replies]

Comment #56 Removed by Moderator

To: snippy_about_it; SAMWolf
Happy Election Day and Treadhead Tuesday to all!

I can just imagine how badly Al Qaeda wanted to strike us before the election, but three years after 9-11 the only thing Osama could launch at us was a videotape. President Bush's strategy of preemption and taking the offensive against terror works!

57 posted on 11/02/2004 12:20:38 PM PST by colorado tanker ("medals, ribbons, we threw away the symbols of what our country gave us and I'm proud of that")
[ Post Reply | Private Reply | To 53 | View Replies]

To: snippy_about_it

ME TOO....DONE....since I'm in Texas and in my area very republican....not much taking place at my voting place. You could look at the folks and see republican and Bush written all over 'em. I loved it!!! Couldn't find one RAT!!! ;o)


58 posted on 11/02/2004 12:23:57 PM PST by shield (The Greatest Scientific Discoveries of the Century Reveal God!!!! by Dr. H. Ross, Astrophysicist)
[ Post Reply | Private Reply | To 50 | View Replies]

To: snippy_about_it
If anybody knows a fellow trooper named Roger Bush who posted on Vietnam Veterans Virtual Wall on October 1, 2003....I am looking for him! Here's his post (date wrong):

I was with Roger. He died on a battlefield on June 2, 1966 while administering to a wounded soldier. I have two more buddies still living that will witness this. My name is Roger Bush.

59 posted on 11/02/2004 12:43:33 PM PST by RasterMaster (Saddam's family were WMD's - He's behind bars & his sons are DEAD!)
[ Post Reply | Private Reply | To 46 | View Replies]

To: snippy_about_it; SAMWolf
Afternoon Friends~

Don't worry, I'm not violating any company policy. I'm on lunch break and have access to a wireless lap. I needed a "blogosphere" fix to find out how the early voting is looking. Maybe I should have stayed in my office. Sheeesh! The guys have "Ben-gay" in their drawers and the women . . . well . . . women are cool. ;^)

Just wanted to drop by and say hello, bump for an after work read. Okay this "two-martini" lunch is over . . . hic . . . later! God bless.

60 posted on 11/02/2004 12:59:40 PM PST by w_over_w (I have NEVER made a mistake. Except the one time I thought I was wrong.)
[ Post Reply | Private Reply | To 5 | View Replies]


Navigation: use the links below to view more comments.
first previous 1-2021-4041-6061-80 ... 161-171 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
VetsCoR
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson