這篇認為M60不適合作現代化升級,寫在最後兩段
或許這些缺點 我們海島防禦不在意 不過看看吧
http://below-the-turret-ring.blogsp...60-upgrade.html

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In general however the M60 tank is not well suited for being upgraded to modern standards. It is extremely tall, resulting in a larger frontal profile and a target easier to spot and to hit. Hence in comparison with a smaller tank, more armor is required to reach a required level of protection. A further disadvantage of the M60 design is it's heavy weight resulting from the relatively thick base armor. While this might sound counter-intuitive in the first moment, the problem is related to the low amount of protection offered by steel armor compared to modern composite armor types: modern composite armor can provide more than twice as much protection against KE and more than 3 times as much protection against HEAT warheads than steel armor of the same weight - this means that instead of having a ten inch (254 milimetres) thick steel turret, a thinner 3-4 inch turret (76 - 102 mm) turret could mount an additional 6-7 inch steel weight equivalent composite armor module without exceeding the weight of the ten inch steel turret.

In case of the M60 and most tanks of the same generation, the situtation is even worse due to utilizing cast steel armor for the turret instead of using rolled steel plates welded together. Cast steel offers up to 20% less protection than rolled steel, depending on the exact composition and treatment. In case of the M60, the cast armor was supposedly very soft at about 220-240 on the Brinell scale. In 1978 the steel composition was altered, probably to provide hardness comparable to the British Chieftain or Soviet T-series tanks (260-280 BHN).Lastly, the upgrades are quite lackluster in some aspects: more modern tracks are not included, no upgrade provides the commander with an independent (thermal) optic with FCS integration, and the power-to-weight ratio is poor on all models.