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Sherman Tanks: Behemoths of the Pacific Theater

Great article, but I wish the myth of "designed as an infantry support tank" would go the way of the do-do. It just isn't the case. It was a multi-role tank. I suspect this started because in the 30s the armor force development was at Ft. Benning but was then taken away and moved to Ft. Knox. JMO.
 
Hello all, here is today's article posted on TheArmoryLife.com. It is titled “Sherman Tanks: Behemoths of the Pacific Theater” and can be found at https://www.thearmorylife.com/sherman-tanks-in-the-pacific-theater/.

They were Top Dog in the PTO ( Pacific Theater of Operations) but were outgunned in Europe. General Patton’s suggestions for the Sherman fell upon deaf ears. It wasn’t until later in the war that the decision makers finally listened and ordered the upgrades.
 
My father in law was in the pacific theater and he thought the flame thrower tanks and man carried flame throwers were the grestest tools they had at thier disposal for clearing out all the holes the enemy hid in there. He said many times they saved a lot of GI lives.

I think he said the seabees modified tanks into them not sure of that.
 
My father in law was in the pacific theater and he thought the flame thrower tanks and man carried flame throwers were the grestest tools they had at thier disposal for clearing out all the holes the enemy hid in there. He said many times they saved a lot of GI lives.

I think he said the seabees modified tanks into them not sure of that.
 

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They were Top Dog in the PTO ( Pacific Theater of Operations) but were outgunned in Europe. General Patton’s suggestions for the Sherman fell upon deaf ears. It wasn’t until later in the war that the decision makers finally listened and ordered the upgrades.
Shermans were the best overall tank in North Africa bar none. There were only about 20 Tigers in NA late in the campaign with most being broke and unable to make it to the battlefield and those that did, did not fare well. Italy saw British, Canadian and US Shermans handling German tanks quite well. By the time of Normandy units were confident of outmaneuvering and using the 75mm to their advantage. Of note: there were about 200 Shermans in England with the high velocity 76mm and the tank battalion commanders didn't want them because load plans, serials, and waves had already been planned and they didn't want the rushed training requirement for the new vehicles. I think their confidence was misplaced in the head to head confrontations in the hedgerows, but once they broke free to maneuver it was a different story.

Photo: Euthanizing a Tiger in Tunisia 1943:

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I remember reading about the problems the crew members and maintenance crews had with the Panthers. They rushed them into the fight with issues. Another problem was with the variates of the Tiger. They had so many variations that parts became a major issue.
The Sherman’s and the T-34s didn’t have that issue.
 
Couple of wars later..but n the Nam the USMC was using the M48A2. The 90mm rifle made short work of any fortifications in direct fire mode, and I say this as an arty FO. No need to check for clearance for fire!!! Only problem was in thickngrowth, the armor wasn’t able to defeat a B40/RPG 2.
 
I remember reading about the problems the crew members and maintenance crews had with the Panthers. They rushed them into the fight with issues. Another problem was with the variates of the Tiger. They had so many variations that parts became a major issue.
The Sherman’s and the T-34s didn’t have that issue.
The Panthers and Tigers had poorly-designed transmissions and were prone to over-heating.

he Panther and Tiger tanks, while formidable in terms of armor and firepower, suffered from frequent transmission failures due to their heavy weight and complex design. The transmissions were often undersized and used straight-cut gears, which were prone to premature wear and tear. Additionally, material shortages during the war made gears more brittle, further contributing to failures.

From the Editor: Panther Reliability | Tank and AFV News

Here's a more detailed breakdown:
  • Undersized for Heavy Weight:
    Both tanks' weight was significantly above the capacity of the available German transmissions.

  • Straight-Cut Gears:
    The use of straight-cut gears, instead of more robust helical gears, resulted in high tooth loads and premature wear.

  • Material Shortages:
    The German war effort's material shortages led to the use of less durable alloys in gears, making them more prone to breaking.

  • High Torque Turning:
    The high-torque method used to turn the tanks could overload the final drive and lead to failures.

  • Early Models:
    Early models were particularly plagued by transmission issues, as drivers were still learning how to operate the tanks without putting excessive strain on the engine and transmission.

  • Fixes:
    Some fixes, like replacing straight-cut gears with epicyclic gearboxes, were attempted to distribute the load across more teeth, but these were not always fully implemented.

  • Third Gear Failures:
    The third gear was particularly prone to failure, sometimes requiring the driver to skip gears to avoid further damage.

  • Muddy Periods:
    Extended periods of driving in mud could also stress the transmission, leading to damage.

  • Main Clutches:
    In some cases, the main clutches were also damaged during muddy periods.


 
The Panthers and Tigers had poorly-designed transmissions and were prone to over-heating.

he Panther and Tiger tanks, while formidable in terms of armor and firepower, suffered from frequent transmission failures due to their heavy weight and complex design. The transmissions were often undersized and used straight-cut gears, which were prone to premature wear and tear. Additionally, material shortages during the war made gears more brittle, further contributing to failures.

View attachment 85289
Here's a more detailed breakdown:
  • Undersized for Heavy Weight:
    Both tanks' weight was significantly above the capacity of the available German transmissions.

  • Straight-Cut Gears:
    The use of straight-cut gears, instead of more robust helical gears, resulted in high tooth loads and premature wear.

  • Material Shortages:
    The German war effort's material shortages led to the use of less durable alloys in gears, making them more prone to breaking.

  • High Torque Turning:
    The high-torque method used to turn the tanks could overload the final drive and lead to failures.

  • Early Models:
    Early models were particularly plagued by transmission issues, as drivers were still learning how to operate the tanks without putting excessive strain on the engine and transmission.

  • Fixes:
    Some fixes, like replacing straight-cut gears with epicyclic gearboxes, were attempted to distribute the load across more teeth, but these were not always fully implemented.

  • Third Gear Failures:
    The third gear was particularly prone to failure, sometimes requiring the driver to skip gears to avoid further damage.

  • Muddy Periods:
    Extended periods of driving in mud could also stress the transmission, leading to damage.

  • Main Clutches:
    In some cases, the main clutches were also damaged during muddy periods.


Add to muddy periods especially cold, muddy periods: the overlapping roadwheel design led to jammed up suspensions and additional maintenance time. Also, the overlap design meant they had to remove three or four roadwheels to change one suspension arm.
 
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