Jon Hawkes Profile picture
Apr 1, 2022 14 tweets 7 min read Read on X
(1/n) A short thread on the latest K9 offering, which is a nice example of what a high end tracked howitzer can look like.

#artillerytwitter #K9 #MFP
(2/n) A pocket history. There are 11 main variants of K9 (not all shown on this image) which started with the 🇰🇷 K9 in 1999, and follow two broad lineages. The more advanced examples that are being marketed follow the line of 🇰🇷 K9A1, 🇳🇴 VIDAR, 🇦🇺 AS21 and now the K9A2.
(3/n) 🇪🇬 K9A1 EGY also derives from baseline K9A1 but wasnt around when chart was made. The other lineage is also receiving upgrades and enhancements and the 2 lines are parallel rather than superior/inferior, the second lineage includes the 🇫🇮 Moukari, 🇪🇪 K9 EST, and 🇮🇳 Vajra.
(4/n) AS21 is the 'latest and greatest' to have been purchased, with 🇦🇺 buying 30x AS9 plus 15x AS10 ammunition resupply vehicles, built locally. They have said they hope to add a second batch of 30+15 down the line.
(5/n) On to the new stuff this thread is about. K9A2. Brings fully automated projectile & charge handling & loading derived from AS10 systems, dual automatic fuze setting, electric gun & turret drives, automatic breech, Composite Rubber Tracks and reduction in crew from 4 to 3.
(6/n) This is the broad strokes of what has been offered to 🇬🇧 for Mobile Fires Platform (MFP) programme, and looks like a best in class design for a tracked howitzer. There are a few accompanying vehicles that round out the K9 package:
(7/n) K10 Ammunition Resupply Vehicle (ARV) is the ammo carrier (this pic is 🇦🇺 AS10). Holds 104 rounds + charges, crew of 3 & feeds rounds into K9 automatically via the loading boom @ 12rds/min. It does need someone to control mating of K10 to K9 but otherwise automatic process
(8/n) KX10 is proposed successor to K10, an optionally manned ARV offering semi- or fully-autonomous resupply. Uses Follow the Leader to enable vehicle packets to transit battlefield, meet up with K9 for resupply & conduct that resupply fully under-armour (incl. automatic mating)
(9/n) K10C2 is a battery command vehicle based on K10. Once you strip out K10 you have a huge space to play with - 8 standing work-stations plus associated C4 kit. Automotive and mobility match with K9/K(X)10. They also suggest you could have one with a counterbattery radar too.
(10/n) K11 Fire Direction Control Vehicles (FDCV) is another C2 vehicle using K10, purchased by 🇪🇬 as the K11 EGY, but is less advanced (unspecified) than the proposed K10C2. Still, nice to see someone getting some good vehicle commonality in their artillery units.
(11/n) Hanwha's autonomous proposition is KX10 move as semi-autonomous packets. First vehicle has a driver, the rest follow. Move to meet K9 for 'just in time' resupply. The vision has a UGVs accompanying for defence against ground and UAS threats, potentially some CRAM/APS too.
(12/n) End result is a situation rather like this, distributed K9 conducting fire missions from K10C2 or other direction nodes (incl. UAS), with KX10 moving around resupplying,
(13/n) KX10 could (bit of a stretch tech wise right now...) move to fully autonomous resupply model, with lots of connected smart logistics going on to feed the KX10s, in turn feeding K9s. A fair few tech hurdles we need to ignore for now, but this is big picture vision stuff.
(14/n) So there you have it, the broad strokes of current and near future K9 offerings. Quite a neat bit of kit, and being explored actively for 🇰🇷 and 🇬🇧 requirements (at least as K9A2). Whether 🇬🇧 can stretch to the fancy bits remains to be seen but one to watch certainly. /end

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More from @JonHawkes275

Sep 30
(Part 2) It started as a thread on the UK's Titan AVLB and Project TYRO, but got so unwieldy I’ve made it a mini series. What is Titan and TYRO; why is it one of, if not the, most important requirements in the British Army (or any army); and why is it a critical requirement? Image
I’ve broken into a few parts; (1) What is Titan and Project TYRO; (2) Why is combat bridging important anyway; (3) Why is Titan a serious problem area; (4) Whats the plan for TYRO CSB; and (5) What are the other options and the implications?
So, Part 2 – Why is combat bridging important anyway? Image
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The UK was the birthplace of the tank and though today it has only a single upgrade programme to show for heavy tracked armour, it was the origin of many key technologies and capabilities used by tanks the world over. A🧵of a few highlights of the glory days of British armour R&D


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The first practical gas turbine powered vehicle, the FV200 Turbine Test Vehicle, a Conqueror. 'Practical' is a caveat - the Germans actually had the first gas turbine tank, a Jagdtiger in WW2, but it had a problematic habit of setting trees and other nearby objects on fire.


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FV4211 (initially the Chieftain Mk5/2), an all-aluminium tank that was the first with composite armour, initially called Burlington but renamed to Chobham, based around the concept of composite materials under permanent compression, laid in a matrix with additional materials... Image
Read 25 tweets
Jul 1
(1/n) A neat bit of thermal footage of Challenger 2 firing and driving. A couple of obvious takeaway comments on tank heat signatures:
Engine is peak sustained source of heat, particularly once underway & exhaust blooms. Its at the rear which is good for classic head on engagements, but modern all-aspect attacks mean its increasingly a concern that you can't do much to mitigate. (cgi image but representative) Image
Barrel once fired is a big hot spot from the front. One part of the reason for these trendy shrouds we see on concept AFV is to limit that signature (and thus far has been dismissed as until you shoot barracuda coverings are good enough, and once you have who cares anymore)

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Read 6 tweets
Jun 11
Some fervent discussion about KF51 in one of my tweets yesterday, a quick thread on the 130 mm main gun and its ammunition handling system in the KF51 concept vehicle to answer some of the question that came up.
Reminder this is a prototype vehicle still and everything is in active development and would be subject to user requirements if it gets bought by anyone. Notional data follows. Image
Main weapon is Rheinmetall’s new (though its almost 10 years old already – development started in 2015) 130 mm L51 smoothbore gun, often referred to as the Future Gun System (FGS). Image
Read 19 tweets
Jun 6
80 years since D-Day, so I thought a (rather long, it turns out) thread of the various interesting AFV things that were around that day, and a bit of a look at what they have evolved to today as spiritual successors. #tanktwitter #dday80 #tanks Image
Specialist AFV are ubiquitous now, but the D-Day landings were some of the first outings for many of these capabilities or at the least cemented their utility upon which several generations have evolved since.
Actually getting onto the beach is itself a challenge, as double-digit tonne AFV are not inherently seagoing things (aside dedicated amphibians). Image
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Apr 17
A brief summary🧵of the Manned Ground Vehicle (MGV) element of the aspirational US Army Future Combat Systems (FCS) programme. A bit of a "what they almost got" for the US Army of the late 90s and early 00s. Image
MGV was a common family of AFV that were bold in their vision - baseline 24 ton hull (later upped to c.30t) with hybrid drive & CRT track, loads of data & sensor fusion, a lot of automation (most variants were 2-man crews), with less passive armour and more smart solutions. Image
A few more details of the core base platform that the family would build on. Lots of bold capabilities that many 2020s AFV still lack, and all with the strategic benefits of a single common platform across an entire Army fleet, which are substantial. Image
Read 21 tweets

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