@EugenPinak @CBI_PTO_History Eugen,

Just because you have a piece of kit doesn't mean you have the TTP to use it properly.

The Japanese Operations 100, 101 & 102 strategic bombing campaign in the summers of 1939-40-41 against Chongqing/Chungking were where the IJNAS got fighter escort signals techniques.
@EugenPinak @CBI_PTO_History Sussing out what the IJNAS was doing signals wise requires an operational template to understand equipment limitations at the time.

This is a good one:

Colgate calling: offensive strategic fighter control, ETO, 1943-45.
cgsc.contentdm.oclc.org/digital/collec…
@EugenPinak @CBI_PTO_History This wikipedia page actually has some of the best operational template data on those raids to compare with the Colgate template.

en.wikipedia.org/wiki/Bombing_o…
@EugenPinak @CBI_PTO_History IJAAS C5M reconnaissance planes were doing the same sort of aerial radio relay tactics in 1940 for their bombers that VIIIth Ftr Cmd fighter escorts were in 1944 and USN Ftrs were at Okinawa in 1945 ftr sweeps.

The Japanese use HF as opposed to VHF, but conceptually, the same.
@EugenPinak @CBI_PTO_History The role of the radio direction finding kit stands out in Operation O-Go when G4M pathfinders flew from Hankow to Ichang - at night - married up with A6M Zeros, and then took them to Chongqing by morning of 11 Aug 1941. Then they took the Zeros home...

pacificeagles.net/operation-102-…
@EugenPinak @CBI_PTO_History ...and then returned to Hankow.

This wasn't a case of moonlight and dead reckoning. The IJN had a network of radio beacons through out the South China Sea for their land based planes to work with.
@EugenPinak @CBI_PTO_History In September 1944 General Akin's Central Bureau passed on their catalog of such beacons to Section 22 to keep the latter from confusing them with radars.

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More from @TrentTelenko

21 May
@EugenPinak @CBI_PTO_History That is far too simple an explanation because it lacks the multiple intelligence intuitions -stupid- involved.
@EugenPinak @CBI_PTO_History How the USA did long range air navigation in WW2 was fundamentally different from the rest of the globe (See link). The Japanese Navy used UK Royal Navy/Continental European style interwar radio-navigation.

THE ARMY AIRWAYS COMMUNICATIONS SERVICE
ibiblio.org/hyperwar/AAF/V…
@EugenPinak @CBI_PTO_History From what little bits I've put together, the IJNAS radio navigation in the SCS somewhat like the German one in continental Europe described here:

The British Meacon System
weaponsandwarfare.com/2016/02/06/the…
Read 12 tweets
14 May
@IntelCrab @IntelCrab, you may have just made the single most important observation of the 2021 Gaza War.

Underground fiber optic cables are extremely & uniquely vulnerable to the seismic shock from high order detonations. They stop transmitting light when subjected to them.
1/
@IntelCrab This fact was used in the 1991 Gulf War Scud Hunt. Saddam used fiber optic cables to communicate to Scud hide sites.

Many air strikes US SF teams called down in the western Iraqi desert were to "sanitize" an area of fiber optic cables after flushing a Scud launcher.
2/
@IntelCrab The collapsing Hamas commercial internet bandwidth, decreasing Hamas ability to coordinate large rocket launches, and the IDF's sustained bombardment of North Gaza combined with that GW1 fact tells me the IDF is destroying underground fiber optic cables.
3/
Read 4 tweets
12 May
@boys_ian @Steveho25139795 @clark_aviation Radar proximity fuzes were a UK concept & engineering development that it took American industrial capacity to make real. (photo)

Time fuzes came in 2 flavors.

Flavor 1 was mechanical like an old Swiss watch. Flavor 2 was a burning pyrotechnic fuze.

Flavor 1 kept better time
@boys_ian @Steveho25139795 @clark_aviation Flavor 2 was far lighter and MUCH cheaper.

This meant barrages and director controlled pointer fire using mechanical fuzes were much more consistent in altitude.

But the pyrotechnic fuzes could reach higher flying USAAF bombers in 1944 that mechanical could not.
@boys_ian @Steveho25139795 @clark_aviation This article (link) is a good one for explaining German AA gun defenses as a system.

The key pacing item for German flak defenses were the directors, mechanical-analog fire control computers. (photos)

nationalinterest.org/blog/reboot/ge…
Read 10 tweets
11 May
@lookner

This James Dunnigan strategypage.com article lists the export customers for the Israeli Iron Dome system. The listed nations are as follows:

Azerbaijan
India
Romania
USA

Air Defense: It Just Works
strategypage.com/htmw/htada/art…
@lookner
Text from the posted article:

"Using Iron Dome effectively has always been a matter of numbers. In the 2014 50-day war with Hamas, Iron Dome intercepted 735 Hamas rockets, which were 90 percent of those headed for populated or military base areas...
...That was up from the eight-day 2012 war where there were 421 intercepts and of those 84 percent were headed for populated or military base areas.

@lookner
Read 4 tweets
10 May
One of the crying shames of academic WW2 history is it's unwillingness to address what we now call electronic warfare.

The Ham radio community is both different & far more useful.

See:

German WW2 ECM
(Electronic Countermeasures)
Adam Farson
VA7OJ
ab4oj.com/nsprog/german_…
Now to explain why Ham radio guys can be a whole lot more useful that academic & archival historians** for EW -- the 2 August 1939, LZ130 Graf Zeppelin flight.

**Note: Every field has it's weak points. Extremely few academic tract historians are radio geeks...
2/
...and being a radio geek is a better skill set for the subject matter than most PhD's not awarded to Dr Alfred Price.

LZ130 flew one of the first ELINT missions ever, against the UK Chain Home system with 25 RF engineers aboard.
3/
Read 10 tweets
8 May
@DrydockDreams has put up another Coral Sea post modeling ships & US Navy CAG William Ault plus his disappearance returning from the strike against IJN CarDiv 5.

This thread goes into what the role of preventable HF communications failure played in that

...disappearance.

To do so I will be using screen captures from Squadron Leader A. L. Hall, RAAF, presentation "farewell to communication failures" reprinted in the Aug 1944 CIC magazine

This is a clip showing the beginning of S/F Hall's manuscript.

WW2 wartime military periodicals often have 'retro' or 'era specific' high tech buried in the articles that modern eyes will not understand.

3/
Read 16 tweets

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