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Trent Telenko Profile picture
@TrentTelenko
Jun 12, 2021 • 6 tweets • 3 min read • Read on X
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This is a short thread on Japanese bulldozers in WW2.

There weren't many & they were small

My copy of Rikugun. Volume 2: Weapons of the Imperial Japanese Army & Navy Ground Forces 1937 - 1945 does not show a single Japanese bulldozer design.
1/ Image
There are a few hints about them on the internet.

In December 1942, the Imperial Japanese Navy commissioned Komatsu to produce heavy earthmovers for the purpose of building air bases.

See this link -- kenkenkikki.jp/museum/bulldoz…
2/ Image
Only 148 of the 5,000 kg Komatsu bulldozers were produced by the end of the war. Some were sent to the Philippines to build air bases

And note "Heavy" by Japanese standards compares to the 23 tons of a US D-8 bulldozer of 1943 vintage.

en.wikipedia.org/wiki/Caterpill…
3/ Image
Even a "small" American D-4 Caterpillar tractor with bulldozer blade was massing 10 tons.

4/ Image
The Imperial Japanese Navy's Komatsu bulldozer was slightly more, mass-wise, at 5,000 kg than a Caterpillar D-2 at 7,420 to 8,536 pounds (3,366 to 3,872 kg).

en.wikipedia.org/wiki/Caterpill…
5/ Image
The real measure of Japan as an industrial power in WW2 wasn't it's battleships, so much as it's lack of bulldozers.

A single field in England in the summer of 1944 held more Allied earthmoving bulldozer capability than the Japanese built from 1937 - 1945.

/End Image

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More from @TrentTelenko

Trent Telenko Profile picture
Jan 22
Stephen Blank has always had a clear US policy view of Russia:

"Moreover, Putin and his circle consistently advance two intertwined claims:

1. Ukraine is inherently Russian;

2. this war steps from NATO’s alleged attempt to turn

1/
 euromaidanpress.com/2025/01/22/tru…
...its supposed vassal state Ukraine into a member against Russia’s will.

Though some self-proclaimed experts still peddle this nonsense, this war’s true purpose is unmistakable:

2/
...the restoration of the Russian empire, without which Putin’s power – and that of his likely successors – cannot persist."

I'll add the following:

The arrival & mass production of Chairman Xi's Corvus Mulberry barges (pictured below behind a Chinese car ferry⬇️)...

3/ Image
Read 7 tweets
Trent Telenko Profile picture
Jan 20
400 Houthi aerial drones, cruise missiles and ballistic missiles were fired at/near USN ships since Oct 2023

120 SM-2 & 80 SM-6 missiles, 160 five-inch main guns rounds, plus a combined 20 Evolved Sea Sparrow and SM-3 missiles engaged them.

Drone War Cost Trades 🧵
1/ Image
Tyler Rogoway has reported the following missile costs:

SM-2 Block IIIC - $2,530,000 per missile.
SM-6 - $4,270,000 per missile.
Evolved Sea Sparrow Missile (ESSM) RIM-162 Block II - $1,490,000 per missile.
SM-3 -$12,510,000 for the Block IB, and $28,700,000 for the Block IIA
2/ Image
So:

120 SM-2 * $2.53 million = $303.6 million
80 SM-6 * $4.27 million = $341.6 million
12 ESSM (guess) = $17.88 million
6 SM-3 IB (guess) * $12.51 million = $75 million
2 SM-3 IIA (guess) * $28.7 million = $57.4 million

3/ Image
Image
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Read 16 tweets
Trent Telenko Profile picture
Jan 17
The fire and forget millimeter wave (MMW) radar guidance AGM-114L "Hellfire Longbow" being referred in the War Zone post as "a new anti-drone armament" for the LCS actually ceased production in 2005 and reaches end of life in 2025.

1/
One of the reasons the AGM-114L was dropped from the US Army M-Shorad is the US Army didn't want to pay money to recertify the AGM-114L inventory...

2/
...with the AGM-179 Joint Air-to-Ground Missile (JAGM) equipped with dual-mode Semi-Active Laser (SAL) and millimeter wave (MMW) radar seeker just entering production.

3/
Read 6 tweets
Trent Telenko Profile picture
Jan 16
It is a bad week to be Russia.

Qatar, one of the biggest LNG exporter, just announced it's new six MTPA (million tonnes per annum) nitrogen fertilizer plant.

The chemical process involved is natural gas->ammonia -> urea for a
1/
 dohanews.co/qatar-set-to-b…
...vertically integrated facility.

This new Qatar facility means Middle Eastern fertilizer industrial plants have now displaced Russia on the world fertilizer market.

2/
This makes Russia falling out of the world Ag-sector fertilizer supply chain a non-event going forward.

The Qatari sheiks made a good move here to capture value up the supply chain from energy.

Plus, Urea and Ammonia store far better than liquified natural gas.

3/3
Read 4 tweets
Trent Telenko Profile picture
Jan 15
I disagree with the thoughts in this post for multiple reasons.⬇️

1st, Ukraine made a systematic effort in Oct 2024 to take out multiple Russian alcohol distilleries.

So distilleries are on the AFU strategic bombing list.

1/
2nd, there are a lot of things that alcohol is a chemical feedstock for that Russia desperately needs to make.

I've talked about synthetic rubber for tires in another thread.


2/
A short list of Russian industrial alcohol uses include:

o It's used as an industrial solvent.
o It's used as a precursor for numerous plastics.
o It's used as a precursor for some explosives.

3/
Read 5 tweets
Trent Telenko Profile picture
Jan 15
Ukraine struck another Russian alcohol plant?

I'm beginning to think the Russians have been using alcohol to make butadiene based synthetic rubber.

My WW2 US mobilization resources say grain produced alcohol was the primary chemical feedstock for the synthetic rubber

1/
...in US tires until August 1944.

The process was invented by a Russian, Via wikipedia:

"The Russian chemist Sergei Vasilyevich Lebedev was the first to polymerize butadiene in 1910....

2/
...In 1926 he invented a process for manufacturing butadiene from ethanol, and in 1928, developed a method for producing polybutadiene using sodium as a catalyst.

The government of the Soviet Union strove to use polybutadiene as an alternative to natural rubber ...

3/
Read 6 tweets

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