Molota_477 Posted April 4, 2016 Report Share Posted April 4, 2016 M1 CATTB pic from TankNet. I feel uncertain whether its cannon's caliber was 140mm or not, I found a figure at the document AD-A228 389 showed behind, which label the gun as LW 120.But in many ways I've found its data in websites all considered to be 140mm. AFAIK,the first xm291(140)demonstrator was based on xm1 tank, and the successor was the''Thumper'' which was fitted with a new turret look like the CATTB but still m1a1 hull(Maybe it was CATTB's predecessor? ) I will really appreciate if anyone have valuable information to share Quote Link to comment Share on other sites More sharing options...
Khand-e Posted April 4, 2016 Report Share Posted April 4, 2016 From what I gather, the CATTB/ATAC program used 2 different gun systems, one 120mm, one 140mm, both used an auto loader. From a rather old article in a defense magazine. Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted April 4, 2016 Author Report Share Posted April 4, 2016 Yes, the ATAC also had an 120mm demonstrator based on M8 Thunderbolt ,compared to the cannon on CATTB it was a bit short... What I concern about is which one was actually mounted on the tank in photo. Quote Link to comment Share on other sites More sharing options...
Akula_941 Posted April 4, 2016 Report Share Posted April 4, 2016 well，i didn't get much information about it,but seems like Thumper and CATT-B with 140mm gun were both exist this picture showing Thumper with the ATAC or i believe it is compare to the CATT-B with 'XM291',the bore evacuator are different, but just compare each other,the size of the gun are very close to each other , and the barrel part out of the thermal sleeve looks the same i guess they are both XM291 but in early or late version Molota_477 and Belesarius 2 Quote Link to comment Share on other sites More sharing options...
LostCosmonaut Posted April 4, 2016 Report Share Posted April 4, 2016 Welcome to SH Quote Link to comment Share on other sites More sharing options...
Khand-e Posted April 4, 2016 Report Share Posted April 4, 2016 Yes, the ATAC also had an 120mm demonstrator based on M8 Thunderbolt ,compared to the cannon on CATTB it was a bit short... What I concern about is which one was actually mounted on the tank in photo. The gun on the 1st picture you posted looks to be the 120mm version, I could be wrong on this so don't quote me, but the bore evacuator on the 140mm appeared much smaller in proportion to the gun on the 120mm version if you compare them side by side, the photos Akula posted seem to show this aswell. Quote Link to comment Share on other sites More sharing options...
Tied Posted April 4, 2016 Report Share Posted April 4, 2016 Phencyclidine is right, its the 120 and ANIMEA avatars are not welcomed to SH REMOVE ANIMEA Donward and T___A 2 Quote Link to comment Share on other sites More sharing options...
LostCosmonaut Posted April 4, 2016 Report Share Posted April 4, 2016 As long as they post good information I'm not going to lose any sleep over a 20x20 pixel animea. Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted April 4, 2016 Author Report Share Posted April 4, 2016 OK I got it Belesarius 1 Quote Link to comment Share on other sites More sharing options...
Tied Posted April 4, 2016 Report Share Posted April 4, 2016 As long as they post good information I'm not going to lose any sleep over a 20x20 pixel animea. you've gotten soft anyways if you folks have questions about the Abrams, i recommend PMing this gentlemen. He's the resident American armour expert Quote Link to comment Share on other sites More sharing options...
T___A Posted April 4, 2016 Report Share Posted April 4, 2016 KS avatars and sigs are halal though. Quote Link to comment Share on other sites More sharing options...
Khand-e Posted April 4, 2016 Report Share Posted April 4, 2016 OK I got it Don't listen to Tied, Tied has zero power here, you can use whatever you want short of like Nazi avatars or things like that. Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted April 5, 2016 Author Report Share Posted April 5, 2016 Well,I dont mind, after all, I'm just a freshman here. Obey the tradition is what I should do. However,I found I cant post any picture from my mobile phone successfully. It seems that there are some limitations on the file size. Quote Link to comment Share on other sites More sharing options...
Tied Posted April 5, 2016 Report Share Posted April 5, 2016 Well,I dont mind, after all, I'm just a freshman here. Obey the tradition is what I should do. However,I found I cant post any picture from my mobile phone successfully. It seems that there are some limitations on the file size. i do everything by URL, i recommend using imgur as a way to store host photos. No problem and welcome to SH Quote Link to comment Share on other sites More sharing options...
Priory_of_Sion Posted April 5, 2016 Report Share Posted April 5, 2016 Here's some figures about 140 mm tank gun ballistics that I don't understand. Article Here Since its from Switzerland, I assume this relates closer to the Pz87 140 mm prototype instead of any US project but is still probably relevant. 900+ mm of penetration with KE penetrators vs 750 mm of pen with 120 mm KE penetrators seems like a decent upgrade in firepower. Akula_941 1 Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted April 5, 2016 Author Report Share Posted April 5, 2016 Good article,thanks. Quote Link to comment Share on other sites More sharing options...
Sturgeon Posted April 5, 2016 Report Share Posted April 5, 2016 The preference is for non-anime/manga avatars, but there's no strict policy against it.There's a certain critical mass a forum can reach where everyone has cartoon avatars and I'd like to avoid that. You can imagine a certain kind of person with a serious technical background getting on a forum and seeing Japanese anime girls everywhere and that driving them away, I'm sure. Bronezhilet and Tied 2 Quote Link to comment Share on other sites More sharing options...
LostCosmonaut Posted April 5, 2016 Report Share Posted April 5, 2016 I'd be curious to see how the American 140mm compared to the one the Swedes were considering for the Strv 2000 concept. Incidentally, tank-net says a whole bunch of concepts were considered for the Strv 2000; T140Conventional turret with autoloaderCrew - 3 menCombat weight - ~60 metric tonsEngine - MTU 883Armament - 140mm gun with 40 rounds and 2x7,62 MG'sT140/40Conventional turret with autoloaderCrew - 3 menCombat weight - ~60 metric tonsEngine - MTU 883Armament - 140mm gun with 29 rounds, 40mm AC with 148 rounds and 2x7,62 MG'sLength (gun excluded) - 6,8mWidth - 3,7mHeight (to turret roof) - 2,26mArmour (frontal) - rated as 800mm vs. KE and 1200mm vs. HEATArmour (side) - rated as 90mm vs. KE and 450mm vs. HEATO140/40Externally mounted unmanned turret with autoloaderCrew - 3 menCombat weight - ~60 metric tonsEngine - MTU 883Armament - 140mm gun with 34 rounds, 40mm AC with 140 rounds and 2x7,62 MG'sT120BConventional turret without autoloaderCrew - 4 menCombat weight - ~60 metric tonsEngine - MTU 883Armament - 120mm gun with 48 rounds and 2x7,62 MG'sL140Conventional turret with autoloaderCrew - 3 menCombat weight - ~35 metric tonsEngine - 1000hp MTU V8Armament - 140mm gun with 40 rounds and 2x7,62 MG'sBased on CV90T120Presumably like T140 but with a 120mm gunT120/40Presumably like T140/40 but with a 120mm gunL120Presumably like L140 but with a 120mm gun.So in essence CV90120. T140/40 sounds like the one that made it to mockup form. Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted April 5, 2016 Author Report Share Posted April 5, 2016 http://www.zhuangjiacheliang.com/data/attachment/forum/201604/05/124826ih3bxxg1g333vbyv.jpg Another side view of M1 CATTB Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted April 5, 2016 Author Report Share Posted April 5, 2016 www.zhuangjiacheliang.com/data/attachment/forum/201604/05/125904j8kdeklzc8llkqnn.jpg According to the construction of its autoloader(if this one really belong to it),I can sure it was 120 gun. The ATAC(XM291) is quite intreseting but with too less information about it. Quote Link to comment Share on other sites More sharing options...
Molota_477 Posted April 5, 2016 Author Report Share Posted April 5, 2016 Eh...the URL was disabled... Quote Link to comment Share on other sites More sharing options...
Akula_941 Posted April 5, 2016 Report Share Posted April 5, 2016 Eh...the URL was disabled... i'll do it for ya Quote Link to comment Share on other sites More sharing options...
Khand-e Posted April 5, 2016 Report Share Posted April 5, 2016 Eh...the URL was disabled... Sometimes the forum host in particular we use sort of messes up if you image link to an attachment from another site or a URL that ends in something that isn't like .jpg/jpeg, .gif, png, etc (that's not the case here, but regardless, it probably was the attachment thing, I get the same errors linking to attachments on Tiexue for example.) Quote Link to comment Share on other sites More sharing options...
Khand-e Posted April 5, 2016 Report Share Posted April 5, 2016 For reference, here's the second image Lightning wanted to link, I rehosted it so it's no longer an attachment. Quote Link to comment Share on other sites More sharing options...
Khand-e Posted April 5, 2016 Report Share Posted April 5, 2016 Also, while I'm not sure how closely it resembles the above design, Meggitt does actually still manufacture a 120mm autoloader to this day that was originally based on the turret dimensions of the M1 Abrams. https://www.meggittdefense.com/index.php/120mm-compact-automatic-magazine-236?task=view&id=363 Quote Link to comment Share on other sites More sharing options...
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