[Duarte]

Está previsto a modernização a alguns M-113 na LPM. Quais as opções? Encontrei esta dos M113 Australianos..

http://www.tenix.com/Main.asp?ID=437

http://www.tenix.com/PDFLibrary/137.pdf

[Duarte]

OS EUA irão modernizar 500 M113 para emprego no Iraque..

http://rfdesign.com/military_defense_electronics/news/contract_upgrades_carriers/

[Mar Verde]

A Jordânia tb os está a modernizar:

Jordan Refurbs its M-113 Fleet

March 11, 2007:

Jordan, with the help of American parts and Jordanian contractors, is in the midst of refurbishing about a thousand of its M113 APCs (Armored Personnel Carriers.) These 1960s era vehicles are getting new engines, and upgrades or replacements on all other mechanical parts. The work is being done in Jordan and is costing about $150,000 per vehicle. There is no change to the armor (which can stop rifle bullets and shell fragments) or weapons (usually a 7.62mm or 12.7mm machine-gun), but there is a new paint job, with a new paint job and camouflage pattern.



The vehicles can also be quickly fitted with slat armor (as is used on U.S. Strykers) , to protect them from RPGs.



But normally, the slat armor is not carried.

[zecouves]

Alguem tem fotos das primeirissimas versões de M 113?

Desde já obrigado.

[PereiraMarques]

Com tantos AIFV/YPR-765 disponivéis no mercado de 2.ª mão, não sei se não seria mais rápido/barato comprar em 2.ª mão do que modernizar os M-113 portugueses (vide "novela" dos F-16 MLU).

http://en.wikipedia.org/wiki/AIFV

[Johnnie]

Mas para os M-113 já tens um grande stock de peças disponiveis

[PereiraMarques]

Mas para os M-113 já tens um grande stock de peças disponiveis

E um AIFV/YPR-765 não é um M-113 modernizado?

[Johnnie]

Uma evolução do M-113 sim, mas parece-me que por cá o que se pretende é ter algumas viaturas operacionais e com uns upgradezitos e o resto da frota disponivel para canibalizar, tudo sem gastar muitos recursos

[Nuno Calhau]

Pelo que li, a modernização será feita nas OGMT.  Mas o Pereira Marques tem razão, vamos ver se não é mais um MLU!

[SSK]

IMI Introduces the "Urban Fighter" Upgraded M-113


IMI is introducing the new "Urban Fighter" - better protected than a MRAP, it costs one tenth of the price and can be produced from raedy-made kits within few days...


IMI – Land Systems Division (Slavin) has completed the development of the "Urban-Fighter", an up-armored and improved M-113 Armored Personnel Carrier. The vehicle is optimized for Missions Others Than War and Low Intensity Conflict (LIC), particularly in urban environment. The Urban-Fighter is considered to augment and replace IDF unprotected or less protected vehicles currently operating in counter-insurgency operations in the West Bank.

By the end of June 2007 IMI delivered the Urban-Fighter’s prototype to the IDF for testing. IMI expects the IDF to decide on potential procurements after the tests completion. Unlike other M-113’s up-armoring projects, the ‘"Urban-Fighter"’ required only minor automotive upgrade, which further contributes to its cost effectiveness. In fact, converting a plain M -113 into a fully equipped Urban Fighter is expected to cost about 10 percent of the cost of a Mine Resistant Ambush Protected (MRAP) currently produced for the US Army and Marines. The vehicle’s protection was enhanced to stop heavy machine guns, shrapnel and most types of Improvised Explosive Devices (IED)s utilizing the Iron Wall technology armor suite developed by IMI, providing bulletproof protection, as well as counter IED / Explosively Formed Projectiles (EFP) protection. In addition, the Urban-Fighter uses improved slat armor, protecting it from attacks by RPGs.

The new vehicle offers features hitherto unavailable to APCs, including armored transparent side windows, offering unobstructed visibility upwards and sideways. 360 degrees observation and firing capability is provided for the commander and another crewmember by a raised cupola fitted with transparent armor. Firing ports are imparted for warfighters in the front, sides and rear. The fighting compartment was has also been redesigned with the addition of blast-protected seats, improving the survivability of the crew to attacks by mines and IEDs. The vehicle can carry eight fully loaded troops and a driver.

The driver’s position was greatly improved, compared to conventional M-113s and is now fitted with two windows and side and rear looking video cameras eliminating the ‘blind areas’ that necessitated direction by the commander. The new driver’s compartment ensures good visibility under most driving conditions, for safe driving on roads, dust roads and cross country. The current configuration retains the ‘steering sticks’ however the vehicle can be installed with an optional steering wheel to further simplify driving.

IMI's Land Systems Division is Israel's leading armor systems house, developing and producing advanced protection systems for heavy, medium and light vehicle applications. Among the company's current programs is the designing and production of the special armor elements used on the Merkava tank, the development and production of the modernized Turkish M-60 tank and the design and production of protection suites for the IDF's new armored infantry fighting vehicle (Namer).

[PETERALM]

:?

ATé,

[Cabeça de Martelo]

7ª?! O M-113 não tem tantas gerações/versões.

[LM]

Espero que ajude ao tópico (Origem)

Full details of the Australian M113AS3/4 upgrade program can be found here:

http://www.tenix.com/Main.asp?ID=437

and also here: http://www.tenix.com/PDFLibrary/137.pdf

The aim of the project is to upgrade the mobility, protection and firepower of our existing M113A1's, which are unbelievably obsolete. 350 of these vehicles are to be procured and will equip the 1st Brigade (Mechanised) primarily 5/7 RAR, 1 Armoured Regt, 1 CER, 8/12 Mdm Regt and (eventually) 3RAR when it converts to mech. The M113 is and will always remain an APC, which is what Government has told Army, Army wants...

The upgrade basically entails stretching the vehicle by approx 70cms via a "plug" being inserted after the base vehicle is "chopped in half" an extra road wheel is then added along with the necessary extra suspension components (Torsion bars). This will provide the basis for the A4 variant which is the "troop" carrier variant.

A3 variants will undergo the remainder of the upgrade which provides additional armour protection through the use of "applique" armour, spall liners, the removal of the fuel tanks from inside the vehicle, to "outside" the main armour (and which also frees up significant space within the vehicle) additional "belly armour" (for mine protection) a new engine, transmission/final drive, suspension and braking system, a new 1 man turret with a new fire control system including passive day/night sensors and the existing 0.50cal QCB machine gun and a "ready 200 round bin" for this gun.

The vehicle will then be capable of carrying 10 troops in the rear of the vehicle, plus the crew commander and the driver. It is being given a baseline armour protection against 12.7mm/14.5mm AP ammunition. An additional "heavy" modular armour kit is also being provided to provide protection against light anti-armour weapons and light cannon rounds. As such it has a considerable higher level of protection than that provided by Bushmaster or ASLAV.

The mobility is also being upgraded with a much more powerful yet more fuel efficient engine (Australian M113's came with a Diesel engine in the 60's, we NEVER had the petrol engined variant). The problems encountered so far have included the engine overheating, the braking system failing entirely and the turret not working as advertised.

The engine problem has been overcome only through de-rating the engine and fitting larger radiator's, hoses and a greater cooling fluid reserve. The braking issue has not been resolved to the best of my knowledge. The turret may never be fixed.

The issues mainly have arisen from trying to "take the chassis too far". The weight of the baseline vehicle is now up to 18 tons, the additional modular armour kit adds further undisclosed weight to the vehicle. The cooling and braking systems have not been able to cope sufficiently with the additional weight and the additional engine power (and subsequent heat generated) needed to move the hefty weight.

On top of which the firepower of the upgraded version will actually be less than that now (as the 0.30cal machine gun is being deleted). The Tenix designed turret cannot have another weapon system added as it wasn't designed for it from the start and the ammunition supply is less. The fire control system is better (as there is NONE now) but the weapon is not stabilised and never will be with this system and overall firepower has obviously gone backwards.

My preference if this vehicle HAS to be used and the unresolved issues can be sorted quickly and cheaply would be for the rubbish Tenix turret to be junked and a remote weapon system to be fitted. This would require additional investment but should reduce overall weight, but would add significantly to the firepower that could be operated by this vehicle.

Alternatively a single man turret designed for the 25mm Bushmaster cannon should be purchased and fitted.

If the issues could be resolved and a 25mm cannon fitted, I think Army might actually become interested in it...

--//--

Now does this mean the M113AS4 is a piece of shit? Nope it’s actually a very good vehicle and exactly what we need in Iraq at the moment to face the EFP IEDs. The M113AS4 actually has the highest level of protection than any non-tank vehicle in the Army. It has the original aluminium armour which is actually superior by weight to steel against small arms and kinetic energy threat (like EFPs and arty splinters used in IEDs) and an extra layer of the latest ballistic steel. Plus a spall curtain that utilises stored cargo as an extra layer of protection (in effect the crew and passengers sit inside a large Kevlar type tent inside the vehicle with all cargo, components and armour outside of them. Also the M113AS4 has the weight margin to unbolt those ballistic steel plates and add several tonnes of ERA – giving them as much protection as the much lauded M2A3 ‘Bradley’ IFV.

The only problem is they are stuck in production mire thanks to this brakes so they can’t be in the field proving themselves.

[/size]

[PETERALM]

Não sei quem poderia ter essa informação, mas lembra-me bem, e até fiquei espanto quando o sargento instrutor disse que os M113 portugueses pertenciam a 2da geração enquanto os americanos ja usavam uma sexta geração de blindados. Tambem não sei se os americanos usam a Browning que nos usavamos nos nossos M's ?

ATé,

[Cabeça de Martelo]

http://en.wikipedia.org/wiki/M-113