Ronkainen Profile picture
Mar 21, 2023 5 tweets 4 min read Read on X
In addition to Cummins Advanced Combat Engine (ACE) used on GD's AbramsX tank, looking back at history, there have been many different dieselization options proposed for the Abrams:
GM/MTU MT883 Ka-500 (manufactured by GM), a 27.36 litre 12 cylinder 1500hp diesel engine, coupled to Allison XT 6775 7-speed automatic transmission, was provided for M1 Block III (M1A1 hull).
Cummins XAV-28 AIPS-D, a 27.56 litre 12 cylinder 1450hp diesel engine, coupled to Allison XT-series seven-speed automatic transmission, was used on M1A1-based Component Advanced Technology Testbed (CATTB).
MTU MT883 V-12 engine but coupled to RENK HSWL 295TM transmission, the combination is called EuroPowerPack (EPP), which used on Re-Power M1A2 SEP for the Turkish tank competition.
L3-CPS (now RENK America) GD883, or CPS883 V-12 diesel engine (MT883 produced under license in the U.S.), coupled to Allison 5250 MX transmission , which used on M1A1-based Heavy Combat Vehicle Test Bed (HCVTB).

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More from @ronkainen7k15

Dec 16, 2024
Taiwan Army officially received the first 10 of the first batch of 38 M1A2T tanks this week, meaning Taiwan became the first user to operate Abrams in the Far East. (Taiwan MND)
It should be pointed out that the M1A2T is similar to Kuwaiti M1A2K and is a simplified SEPv2 solution Image
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Although there are many rumors claiming that the M1A2T is an export version of the SEPv3, this is incorrect. In appearance, M1A2 SEPv3 has extended turret armor, a low profile UAAPU, and modified tiedown eyes at the front and rear of the hull. Note the differences from the SEPv2 Image
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Australia is the first customer to receive the export M1A2 SEPv3, which shares most of its features with the US Army version, but has been modified with SitaWare's Frontline battle management system (BMS) and an improved Australian armor package. Image
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Read 7 tweets
Oct 6, 2024
A brand new Abrams identified as M1A2T, fresh out of the Lima plant, was spotted on a highway in Ohio. (ⓒMike Haines)
The photo via my friend. This M1A2T may be to supplement the first batch to be shipped to Taiwan. The following are the tips for ID. Image
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The difference in appearance between the M1A2T and the standard M1A2 SEPv2.
In addition to the tri-color camouflage and M1A1-type hull, it can be noted that the suffix Ē on the turret serial number represents the FMS export armor. Image
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The FMS export armor package with the suffix Ē is also used on the Kuwaiti M1A2K and Poland M1A1 FEP.
Read 4 tweets
Sep 25, 2024
BNSF 5677 train moves through La Plata, MO, with a load of 12 Abrams tanks, heading southwest toward Kansas City and eventually to the west coast. The tanks are identified as M1A2T with tri-color camouflage, note the ACPS on the bustle and M1A1 style hull with old tiedown eyes.


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These M1A2T tanks will go to a west coast port and be loaded onto ships, and eventually shipped to Taiwan. It's reported that the Taiwanese army will receive 38 M1A2T tanks in December this year. Image
The M1A2T is a custom M1A2'X' with analog modifications, with the turret structure and sights equivalent to the M1A2 SEPv2, but the onboard electronics equivalent to the M1A1 SA standard. Most of its subsystems is similar to the M1A2S or M1A2K.
Read 17 tweets
May 7, 2024
The Armed Forces of Ukraine have released a promo video of their M1A1 (Situational Awareness) SA Abrams tank with many close-ups. The following will illustrate the differences in the Ukrainian M1A1 configuration.

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From the ‘UKR’ in the turret serial number suffix, we can know that the Ukrainian M1A1 uses a different ‘Ukrainian’ armor package, which is different from the US Army’s Heavy Armor (HA) package.
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The Ukrainian version of the M1A1 SA weighs 57.2 metric tons, which is much lighter than the U.S. Army configuration, which reaches 62.2 metric tons (68.6 short tons)
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Read 12 tweets
Apr 18, 2024
Today, the US Army unveiled the first LRIP batch of M10 Booker Combat Vehicles (BCV) for the first time at the historic naming dedication ceremony for the M10 Booker. It also means that the M10 program is moving into the Production and Deployment (PD) phase now.
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The LRIP configuration of the M10 Booker is different from the XM10 prototypes built the year before last, and has been modified in details. Image
For example, changes to the front box of the turret are visible. (M10 on the left, XM10 on the right)
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Read 12 tweets
May 5, 2023
In the late 1990s, General Dynamics Land Systems came up with an interesting concept named the Abrams Lightweight Variant Tank, which provided an air transportable MBT at significant weight reduction. For simplicity purposes, the concept tank will be referred to below as ALVT. Image
The primary design goal of ALVT is to reduce the vehicle ship weight to a target of 39 tons (35 tonnes), consistent with the C-17 cargo aircraft lift requirements (two units on a C-17). While at the same time it is desired to maintain the high survivability and lethality. ImageImage
The Abrams Lightweight Variant Tank weights 51.15 tons (46.4 tonnes) in combat configuration, and 46.24 tons (41.9 tonnes) in curb/dry weight. The vehicle can be further reduced to 39.33 tons (35.6 tonnes) through the modular design and shipped separated systems. ImageImage
Read 15 tweets

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