tag:blogger.com,1999:blog-386077914312449748.post5522871686917692430..comments2024-03-27T20:37:08.065+01:00Comments on Defence and Freedom: Lightweight warhead direct fire projectionUnknownnoreply@blogger.comBlogger34125tag:blogger.com,1999:blog-386077914312449748.post-29945616616359556932023-08-23T11:56:01.582+02:002023-08-23T11:56:01.582+02:00Picket seems to have used a system similar to Aste...Picket seems to have used a system similar to Aster's Pif-Paf steering.<br /><br />Minute charges are similar, but they don't draw from a rocket that's burning all the time. They are many individually activated tiny solid fuel rockets that push the missile briefly to change its course. Dragon had too few and too big such charges for a smooth-enough steering.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-84516498089026909722023-08-23T06:37:36.082+02:002023-08-23T06:37:36.082+02:00Revisiting this - looks like the Picket used Taild...Revisiting this - looks like the Picket used Taildog-like thrust vectoring. Are you suggesting Dragon ATGM-style directional charges?Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-28711020876710905312022-03-05T15:57:34.636+01:002022-03-05T15:57:34.636+01:00Overflight top attack depends on magnetic signatur...Overflight top attack depends on magnetic signature (which the navy knows to reduce and since at least the late 70's armies know how to project (against magnetic fuse HEAT anti-tank mines) and on an optical (or rather thermal) sensor. The thermal sensor could be messed with by water spray, quick bursting multispectral smoke round (red phosphorous is the simplest chemical for it) and even VESSS (spraying diesel into hot exhausts = smoke that's still hot). Exterior camouflage like multisorb also messes with such sensors, so you don't even need fancy peltier element tech for camo.<br /><br />So COMPETENT tank troops could quite easily counter overflight AT warheads without expensive gear like hard kill APS, and that's uncomfortable to those who defend on those overflight top attack munitions. <br /><br />And yet, NLAWs appear to rape T-90's in Ukraine.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-43317304456761214642022-03-05T15:41:59.417+01:002022-03-05T15:41:59.417+01:00"I probably did underestimate the importance ..."I probably did underestimate the importance of portable anti-MBT weapons, though. It appears that the Russians have not (unlike the Red Army did) countered Western anti-tank arms within 15 years. 25+ years old Javelins do work, and NLAW seems to work as well despite its top attack profile being public knowledge for about 30 years (Bill, TOW-2B)."<br /><br />You often assume too much competence which of course isn't a bad thing. Frankly it shows how high the percentage of old stuff and the power of inertia and path dependency is. Crazy how far away it is from the 'replacement cycles' of WWII. <br /><br />'One could scale up the concept mentioned in this blog post to the calibre of RPG-28 for an effective range of about 400 m, but in both cases (the described munition and PLOS RPG-28) the real challenge would be to keep the Western arms industry from making such munitions unnecessarily expensive'<br /><br />Yeah. Another question is if and when how the greater accuracy potential and greater ease to achieve it shifts the relations between warhead weight and propellant quantity. <br /><br />A PLOS RPG-28 with 400m seems plausible and strictly in the AT sense the warhead must of course have a sensible margin. It seems feasible to have at least two PLOS, light and heavy. <br /><br />One has to think from the tank to the warhead and from the user to the sighting system.<br /><br />Firn<br /><br />P.S: To me a top attack solution remains a valid solution as it offers a higher hit probability in quite a few cases. The surface of a MBT is often far larger then it's visible silhouette and overall missile weight could be reduced. <br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-63385261669659351422022-03-05T07:24:51.240+01:002022-03-05T07:24:51.240+01:00It should work splendidly against BMPs and BTRs (t...It should work splendidly against BMPs and BTRs (though a scarcity of explosives inside BTRs would lead to few secondary effects).<br /><br />I probably did underestimate the importance of portable anti-MBT weapons, though. It appears that the Russians have not (unlike the Red Army did) countered Western anti-tank arms within 15 years. 25+ years old Javelins do work, and NLAW seems to work as well despite its top attack profile being public knowledge for about 30 years (Bill, TOW-2B).<br /><br />My preferred choice for anti-MBT munitions is the RPG-28, a brute force approach that can be expected to hit at much shorter distances than the similarly heavy NLAW, but RPG-28 is dirt cheap compared to NLAW and ERYX.<br />One could scale up the concept mentioned in this blog post to the calibre of RPG-28 for an effective range of about 400 m, but in both cases (the described munition and PLOS RPG-28) the real challenge would be to keep the Western arms industry from making such munitions unnecessarily expensive. The case for justifying a high price for a M72 equivalent is much weaker than for a MBT buster, so a PLOS RPG-28 would likely become as expensive as NLAW was, despite technological advance.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-43011156384035434362022-03-04T21:30:20.776+01:002022-03-04T21:30:20.776+01:00Coming back to this discussion during the Ukrainia...Coming back to this discussion during the Ukrainian war shows that the concept has maybe even more utility then I thought. <br /><br />I'm pretty certain that the Russians will have to switch to bigger and better protected convoys after all the carnage which in turn might make it easier for combat drones. <br /><br />Such a light-weight weapon should be a far better against escorting BTRs or supporting BMP then the classic RPG. Might make arguably even more of a difference when using not so well trained troops. <br /><br />Firn<br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-46404089254589195602017-06-17T22:29:23.885+02:002017-06-17T22:29:23.885+02:00There are good reasons for APS to not become wide...There are good reasons for APS to not become widespread for lightly armoured vehicles that do not apply to MBTs, HAPCs and the heavier types of IFVs.<br />One reason is the expense, another its that they would be exposed less often (and rarely intentionally) to fires than MBTs and IFVs.<br />Finally, there are munitions that defeat APC+hard kill APS combos while being useless against IFVs and MBTs. One of them is he weird TEMP-10 munition; a round that is supposed to explode at 25-30 m before impact to form an EFP. This EFP has very little penetration, but enough to penetrate light armour if the angle is OK. Every hard kill APS would fail against this and TEMP-10 has been known to the public for ~15 years.<br /><br />10 kg for RGW is NOT lightweight, particularly as the round with container comes in one heavy piece to be carried by one man.<br />Everything can be made "lightweight" if only the "light weight" requirement for calling it "lightweight" is ditched.<br /><br /><br />Please understand that length of line of sight isn't identical in all directions. A building may have 250-500 m line of sight in 300° and 15-40 m LOS in 60° angle. The base of fire team could launch a shock salvo and suppressive, distracting fires from a quite safe 300 m distance and an assault team rushes the 15-40 m distance seconds later.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-9943118102998016832017-06-17T21:58:27.349+02:002017-06-17T21:58:27.349+02:00IMO APS will become common even on BMD like tanks ...IMO APS will become common even on BMD like tanks and even lighter plattforms (even "unarmoured" plattforms). And every terrain in which an BMD can achieve an range of 200 m + is not an infantry terrain and especially if the terrain allows a range of 400 m plus such an Tank would not come allone but many of them which creates enourmous problems for infantry. In bounding overwatch several of such tanks would eliminate infantry opposition because of their superior weapons. <br /><br />Firing several rocket launchers from seperat infantry man from different positions on one tank would not solve the problem that modern APS are multi-hit-resistant and can defend such an attack. <br /><br />Because reach becomes important in fighting light tanks i do not think that extreme ultralight weight launchers are the solution here. If you spare weight in other ways you can easily use systems like the RGW-90 here which offer you an reach of 1200 m with around 10 kg weight. Lets assume you do not use body armour and helmets you can easily carry several of such RGW-90 rounds within a squad without any weight penalty. <br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-86457196709455064202017-06-15T20:30:17.909+02:002017-06-15T20:30:17.909+02:00Salvo fire means that the squad leader could contr...Salvo fire means that the squad leader could control the fires (as is standard doctrine with 7.62 mm machineguns like MG3). An opening salvo could throw the 'shocked' opponents into confusion, followed by small arms fires. It would be very difficult to regain fire superiority for the opposing force, even with a mad minute drill.<br />APS is not so much the concern for such modest penetration munitions since they would rather not penetrate a MBT even in a flank hit and APS on BMPs is IMO a mere arms show demo thing, not a real battlefield thing.<br /><br />I think we have a disagreement on the cost of the munition I proposed. The INS would cost less than 15 €. The processor would cost less than 50 €. The minute charges and wiring would cost less than 200 € or so. The shaped charge liner would be a copper alloy, not expensive tantalum or other superior exotic materials. <br />I think after taking accuracy into account it can very well deliver effect cheaper than RPG-7 munitions produced in the same country unless you shoot at really, really short ranges (= well under 100 m).<br /><br />About infantry combat ranges: This is a bit complicated. Generally I'm in favour of not thinking beyond 300-400 m for multiple reasons, but shots at things like fighting positions in a building or at BMP/BTR are an exception. You may need to defeat BMP/BTR that are on overwatch in order to regain freedom of movement. You can defeat easily aimed-at positions like fighting positions in a building at long range with less risk than at short range - even if the assault team shouldn't be seen farther than at hand grenade range.<br />Furthermore, a guidance like I described that delivers >90% probability of hit at 300 m would offer almost the same probability of hit at 500 m with very, very little extra weight of expense (more minute charges would be needed).S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-10498480172525241312017-06-15T19:53:22.877+02:002017-06-15T19:53:22.877+02:00The point in using reloadable launchers for guided...The point in using reloadable launchers for guided rockets is, that you can use them with non guided very cheap and everywhere available ammunition which is sufficient for many purposes in which a guided rocket would be an waste. <br /><br />Because no launcher like the one you described is available there is no difference in comparison to developing a guided new RPG-7 ammunition which is then not inaccurate. And in the many cases you must not fire this ammunition you use the cheap standard ammunition. Most infantry fighting is under 200 m or even under 100 m. So the range of even the worst RPG-7 standard ammunition is absolutly sufficient in many cases. And this ammunition is used a lot simply because it is very cheap and widespread and everywhere available which is an advantage in comparison to an specalised launcher which nobody else uses. <br /><br />I think it would be cheaper and faster to build a new accurate ammunition for an RPG-7 launcher than to develope a complete new ultralight weight launcher. And the costs would sink even further if one use then standard ammunition in every case in which this is suffficient (because of short range or different / non moving targets et al) and the new guided and accurate ammunition against tanks / moving targets.<br /><br />But i agree that the salvo effect is one main point that speaks for your concept, especially because it can perhaps beat hardkill systems which otherwise would make infantry AT-rocket launchers worthless. But i did not understand this salvo concept completly ? Would you combine several such launchers together and shot them at once with one shot or do you mean that then an complete infantry squad fires several such launchers at once from different positions ? <br /><br />And why should salvo fire in the second way i described produce shock against moving tanks ? Most hardkill systems have even a multi-hit ability if the hits came from different directions / different angles and some can beat even two such attacks which come simultanious in the same direction (Trench Coat). If you divide the launchers amongst the soldiers there is no real practical advantage then and i would not call this a real salvo fire. <br /><br />Moreover: one could also use UBGLs against tanks and blind them with such ammunition, or combine the fire of UBGL with that of seperate AT-devices which is very efficient. <br /><br />And for infantry it is not clever to fight tanks on long distances. If there are long distances like the 300 to 400 m you claim, you are in an terrain in which infantry would loose this fight against the tanks because they have the superior weapons on this distance. Moreover beiing close to the enemy protects the infantry from enemy artillery and so on (at least partly) and so it makes not so much sense to open the fight against tanks on distances of 400 m in direct fire. Only indirect fire makes sense here (firing from defilade). If you fight in a terrain which allows you 400 m lines of fire your infantry will loose against tanks in any way. <br /><br />But to repeat myself: do i understand this right that you mean with salvo fire that one man shoots several such (attached to each other in an bundle ?) launchers with one shot ? Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-49016465671505111162017-06-14T03:21:55.254+02:002017-06-14T03:21:55.254+02:00You might notice (if you reread the post) that thi...You might notice (if you reread the post) that this was in large part about defeating BMP/BTR type targets -moving or not- at good ranges. The anti-infantry purpose is the second requirement, but not sufficient. UBGLs were ruled out for a reason. Pike is no doubt expensive and NOT a HEDP (AP+AT) munition.<br /><br />Infantry that uses UBGLs will end up carrying separate AT hardware.<br />---------------------<br />Now about that MK 777 nonsense.<br />First issue; it does not weigh 3.5 kg. It weighs 3.6 kg + sight(s). That's easily 4 kg.<br />Second, all existing RPG-7 munitions are utter crap past 200 m. UTTER CRAP. The inaccuracy is so bad even in calm air that you will rather not hit a standing tank at 150 m under combat stress. Peacetime hit rates on a standing tank at 200 m are below 50%. RPG-7/-18/-22/-26 against moving tanks in mediocre conditions: approx. 100 m effective range.<br /><br />RPG-7 are used a lot because they're available in huge numbers, but RPG-7s are crappy weapons with crappy munitions. To devise a lightweight launcher doesn't solve the problem that the RPG munition concept is crap.<br />---------<br />There's no point in using a reloadable 4 kg launcher for guided (or intercept course autopiloted) rockets because these would require some proper packaging to protect them anyway. -------<br />And once again, single shot autopiloted rocket launchers would be available for salvo fires. That's hugely important. It can deliver 'shock' in a surprise attack and in combat situations without surprise effect four men exposing themselves in the same 3 seconds would not receive nearly as many fires as one man exposing himself four times for three seconds.<br /><br />This is similar to how British night bombers in WW2 compressed their bombing of a city down from 2hours or so to 20-30 minutes. The anti-air artillery's lethality was a function of for how long it could engage targets, not of the qty of targets.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-23858687649383489992017-06-13T23:32:20.129+02:002017-06-13T23:32:20.129+02:00Most RPG-7 Anti-Infantry / Multi-Purpose Rounds we...Most RPG-7 Anti-Infantry / Multi-Purpose Rounds weights about 2 kg. The Mk.777 weights 3,5 kg.<br /><br />The ROCHAP-HEAP weights about 1,8 kg. The Launcher weights 1,9 kg.<br /><br />Lets assume around 10 kg. This would mean one Mk.777 and three rounds or one SARPAC Launcher and four rounds. This means only one round more which is without any practical importance.<br /><br />A salvo of four would only lead to a waste of ammunition and is moreover only necessary because the area of effects is so small per rocket.<br /><br />The RPG-7 grenades weights more, but is more efficient because of greater area of effect for many of the available ammunition. <br /><br />Moreover a SARPAC Launcher cannot launch normal RPG-7 ammunition which is extremly cheap and everywhere available.<br /><br />There is a reason the SARPAC is now of use and regarded as complete osbolete but the RPG-7 still rules many fightings. Some of the ammunition is heavier of cause, but the lethal effects area is even much greater as is the reach. For example one simple shot of an TBG-7W as more effect area than four SARPAC rounds and a reach up to 1000 m and the SARPAC Launcher had an effective reach up to only 200 m with the at-round and a maximum of 700 m with a heap round. <br /><br />Instead of such an extreme ultralight rocket launcher one could begin to use simple undersling grenade launchers (which today also reach up to 800 m) because the reach and the effects would be equal and moreover one could use rockets like the pike. <br /><br />Instead of an SARPAC kind launcher an equipment of every man in the squad with undersling grenade launchers would be much more efficient, combined with the greater power and flexiblity and combat proven durability of a Mk.777.<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-52624760978228939322017-06-12T13:06:03.149+02:002017-06-12T13:06:03.149+02:00It takes many rounds till the 3.5 kg weight for a ...It takes many rounds till the 3.5 kg weight for a single launcher are outweighed by the simple single use tubes of a weapon/munition that would weigh 2.5 kg total. Minimum 4 shots, and then at weight equilibrium you still have the issue that a single reloadable launcher allows but for one shot at a time, not a salvo of four.<br /><br />This was different with SARPAC, which was a very lightweight reloadable tube in its later version.<br />http://defense-and-freedom.blogspot.de/2014/04/underrated-french-infantry-arms-and.htmlS Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-10879434593918169642017-06-12T12:38:36.239+02:002017-06-12T12:38:36.239+02:00Also the Airtronic Mk.777 weighs only 3,5 kg (empt...Also the Airtronic Mk.777 weighs only 3,5 kg (empty) and can fire new ultralightweight RPG-7 grenades as also all kind of other ammunition the RPG-7 can use. Reach also 500 m -/++ (depends on the ammunition and can reach out to 900 to 1200 m) and has Picatinny Rails, IR/Thermal Sights and a Back-Up-Iron Sight.<br /><br />Only thing missing are guided rockets but that should be very easy and could developed from a Mini-Spike that is adopted to this launcher. And you have the ability to use non guided standard very cheap RPG-7 ammunition for the many cases you must not use a guided rocket.<br /><br />https://kitup.military.com/2015/02/army-tests-soviet-designed-rocket.html<br /><br /><br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-65538685369311825382017-06-08T23:19:40.044+02:002017-06-08T23:19:40.044+02:00There are 2 new comers from Russia and Belarus, th...There are 2 new comers from Russia and Belarus, they are all very compact, light weight (around 5kg) and long range (around 500m).<br /><br />1. Russian 62mm BUR: http://modernfirearms.net/grenade/rus/bur-e.html<br /><br />2. Belarussian 60mm BSVT-VV: http://www.vpk.gov.by/en/news/5842/<br />ömerhttps://www.blogger.com/profile/01089565139374086253noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-65996224662693489142017-05-26T08:34:07.226+02:002017-05-26T08:34:07.226+02:00To use commando mortars does not mean, to not have...To use commando mortars does not mean, to not have heavier mortars at bataillon level, but to have both. Moreover i would not scatter them amongst the platoons, but concentrate them in a support platoon/group at company level. The effect of one such mortar is not very impressive i agree, but several such mortars together can create really astounding effects. <br /><br />And 15 kg for a platoon is near to nothing, it would mean around 0,5 kg per soldier. Only the protection and armour (with helmet) weighs today between 20 kg and 25 kg per soldier. If you do not use such armour, you spare at least 600 kg per platoon. <br /><br />This mean, you can use your lightweight rocket launchers and a commando mortar both and the infantry would be still very lightweight and extremly agile and elusive.<br /><br />Even if you use ultralightweight boots instead of the heavy militarr issued you spare around 1 kg per soldier and the commando mortar is only 0,5 kg per soldier (and to save 1 kg on the foots is equivalent to spare around 3 kg on your back(pack)) so it reduces the strain more than one suggest.<br /><br />That is an important point: the strain is not only a result of the kg, but of the question where exactly you wear it and how it is fixed to your body. <br /><br />So i am not talking about a commando mortar instead of your lightweight rocket launcher and without bataillon fire support, but an infantry company with all three of them: commando mortars, lightweight rocket launchers and bataillon guns.<br /><br />This would make the unit much more flexible in every way. It could fire at targets which are in greater distance for itself, it could fire from defilade, call in bataillon gun support and could diversify its effects much more.<br /><br />By the way: there are many opportunities in a fight in which you should not use bataillon gun fire because of collateral damage, because the bataillon guns have not enough ammunition or you do not want to show their position and so on. So many cases i can think of in which i would not call in fire support from the bataillon but would try to find a solution on the company level. And then you need flexibility and the weapons to achieve the goal otherwise.<br /><br />To your critics of the concept in particular:<br /><br />Commando Mortars are extremly effective in woodland, the ija proved this in dense jungle for several years. <br /><br />The lethal effect area of several such mortars together is astoundingly high. Same for smoke and moreover if infantry need a big smoke screen to break contact something has gone terribly false. Smoke does not block bullets and explosions and is more useful for attacks then for breaking contact.<br /><br />The argument of the high training demands can be countered by modern aim-devices for such mortars which make it much easier to hit (and guided ammunition for moving vehicles).<br /><br />And the weight: seriously? Most infantry carries today around 30 kg to even 40 kg of equipment per soldier. Simply reduce the body armour and cancel the helmet and wear lighter shoes and a lighter backpack and so on and you have around 10 to 15 kg for free on every soldier and you need only 0,5 kg per soldier for the commando mortar.<br />Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-51773010901786144452017-05-25T21:24:14.406+02:002017-05-25T21:24:14.406+02:00An example that matches your 1.3 sec time-of-fligh...An example that matches your 1.3 sec time-of-flight is when the range is 400m and the missile speed is 300m/sec (0.87mach) for the whole duration of the flight. Of course the later isn't accurate because the missile briefly accelerates to that max speed and then continues with decreasing speed thus the real time of flight is greater. <br /><br />If we leave aside air-resistance, a missile capable of reaching 400m when aimed at a few degrees from the horizontal, surely can reach significantly greater ranges with a more ballistic trajectory. The reason this is not practiced with unguided anti-tank missiles on point targets is the insufficient accuracy but if the guidance system supports it ( as in your setup ) why not go for it?<br /><br />As an example RPG-7 ( from wikipedia ) has these: Muzzle velocity: 115 m/s (boost) - 300 m/s (flight)<br />Effective firing range: 200 m<br />Maximum firing range: 500 m (self detonates at ≈920 m)<br /><br />This means that it can reach further than 920 m but after 200 m its accuracy isn't enough to take advantage of that range. Your guidance setup can overcome this limitation and offer reasonable accuracies to much larger distances.<br /><br />Thanos Massiashttps://www.blogger.com/profile/16049476736363036130noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-22457772121865312712017-05-25T18:42:44.460+02:002017-05-25T18:42:44.460+02:00On the tactical and technical side your propositio...On the tactical and technical side your proposition is a breath of fresh air. Overladen infantry can't maneuver the way they're supposed to. When planning a defence and drawing circles of each of the jaegerplatoons weapons effective range it is very discouraging to draw the miniscule range of LAW72. Every encounter must be planned with that range in mind. APILAS offers some improvement but is heavy as F and not as numerous as LAW72. AT weapon with effective range of 300m that could be issued to every second or third soldier without slowing down the platoon would be a significant leap in combat power. This would bring versatility to attack because you can't always predict where the enemy will be and distances will vary. With LAW an enemy IFV over 250m away would halt my attack or deplete my stock of LAWs. TehFinnnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-82796522637984376132017-05-24T21:12:58.934+02:002017-05-24T21:12:58.934+02:00There's not much of a ballistic trajectory to ...There's not much of a ballistic trajectory to speak of in only 1.3 seconds. That's about 8 m drop only. After 200 m it would only be about 2.5 metres.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-1707192843717028012017-05-24T20:55:58.310+02:002017-05-24T20:55:58.310+02:00Maybe you can't get enough accuracy with such ...Maybe you can't get enough accuracy with such a setup.<br /><br />Now that I think of it, you don't even need to know the distance-to-target. You can just follow the trajectory that answers the question: where would the target be if impact was at time X for X>0.<br /><br />However, using in your calculations a rough ( and conservative ) estimate of distance would increase maximum range by following a ballistic trajectory until a point before the estimated distance, where the missile will switch to a level trajectory. <br /><br />And you only need to use such a mixed trajectory when the distance-to-target is large enough to require a ballistic section - otherwise you stick with the simpler level trajectory for the whole time. This means that the shooter has to provide an estimate of the distance-to-target only if it is, say, beyond 50% of maximum range.Thanos Massiashttps://www.blogger.com/profile/16049476736363036130noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-73340009006693652982017-05-24T01:13:06.434+02:002017-05-24T01:13:06.434+02:00It's not "RMA" to have fire support ...It's not "RMA" to have fire support above company level. We had that in the 18th century already (regimental guns), and we had it a lot in WW2 and it's been standard to have 120 mm mortar support at battalion level throughout the Cold War.<br /><br />Tiny commando mortars can do illumination, but this adds a lot of weight to the infantry platoon while calling for 120 mm IR-ILLUM costs a fraction of a battery's weight.<br /><br />Tiny commando mortars are NOT really effective HE deliverers. The dispersion and inaccuracy of the first shot is much greater than the lethal effect area. It's very training-intensive to get a man to aim well, and this is still uncertain under stress.<br /><br />Commando mortars cannot be used indoors, nor are they of much use in woodland.<br /><br />Commando mortars can deploy smoke, but MUCH less so than 120 mm fire support. S couple tiny (51-60 mm) SMK mortar bombs cannot really deliver the smoke wall needed by a squad to break contact in all but the easiest terrains. You need different means for this.<br /><br />Guided 51-60 mm mortar projectiles don't seem to be in the pipeline. Even 81 mm calibre doesn't seem to get PGMs and PGMs are still rare even among 120 mm mortars.<br /><br /><br />An agile infantry has to be lightly loaded or use some exoskeletons. A lightly loaded infantry has to limit its need for munitions and 'outsource' indirect fires.<br /><br />To burden a platoon with 10-15 kg for commando mortar & its munitions means to deviate from the 'agile & elusive infantry' path.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-29038229502011166462017-05-23T21:03:38.953+02:002017-05-23T21:03:38.953+02:00Infantry really really needs to have commando mort...Infantry really really needs to have commando mortars, which are since the time of the immperial japanese army one of the most efficient and most underestimated weapons at all. Of cause one can follow an RMA Infantry approach and outsource the firepower, but to have such a flexible and versatile weapons in the company and even in the platoon offers so many possibilities to the infantry, even if there is other kind of indirect firepower available. That reaches from cheap dumb mortar ammo to one way uavs to battlefield illumination and smoke and so on and so on. And even to anti-tank and fighting fast moving vehicles.<br /><br />And the more expensive guided mortar munition you would only need against this moving vehicles - against other kinds of targets you can use other and much cheaper ammunition. <br /><br />Moreover it is a weapon system that will fit your ideas about an unspectacual advance beyond mutual cancellation<br /><br />http://defense-and-freedom.blogspot.de/2016/08/beyond-mutual-cancellation.htmlAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-24889026168855875362017-05-23T20:59:31.348+02:002017-05-23T20:59:31.348+02:00OK, separate rotation sensors works as well. I was...OK, separate rotation sensors works as well. I was thinking of using spaced accelerometers to measure the rotation. Then you should be able to get enough data from four accelerometers.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-57590040381235843742017-05-23T20:27:44.519+02:002017-05-23T20:27:44.519+02:00My understanding is that they use 3 accelerometers...My understanding is that they use 3 accelerometers (X,Y & Z axis) AND 3 rate of rotation sensors (again, on X,Y & Z axis) so they can handle this case. The rate sensor along the axis of movement (roll axis) is needed to know one's attitude. The accelerometer on this axis may be used for estimating distance traveled instead of relying on a stored distance-vs-time function (which might not be enough when the movement is not horizontal and straight - this surely applies in the case of VL-Seawolf for which the technology was developed).<br /><br />I believe that when using the weapon you start by tracking the target for a short time so that the control unit calculates the relative angular rate of movement (i.e. I observe a tank moving 1/12th of a degree per second). This rate, if kept constant (i.e. the tank does not drastically accelerate/decelerate/change direction), along with distance to target should be enough to calculate the expected position of the target when the missile impacts it.Thanos Massiashttps://www.blogger.com/profile/16049476736363036130noreply@blogger.comtag:blogger.com,1999:blog-386077914312449748.post-70881163812615708332017-05-22T23:23:12.695+02:002017-05-22T23:23:12.695+02:00Well, the guidance principle is known to work - th...Well, the guidance principle is known to work - there's no creative input of mine in it.<br /><br />NLAW is too heavy. It's one of those munitions with ambition to defeat MBTs.<br /><br />The use of only 3 accelerometers points at them not taking into account that moving targets may move downwards or upwards, which likely is suboptimal in mountains.<br />I think it needs 4 accelerometer locations and orientations to get the full picture (up-down, left-right and two rotation axes).<br />NLAW was designed before MEMS accelerometers became super-cheap and available in 25 € toys, of course. Maybe they wanted to save the expense of a fourth sensor (that would be negligible nowadays).<br /><br />Well, this or SAAB simply works with approximated movement data and found that to be accurate enough.S Ohttps://www.blogger.com/profile/03359796414832859686noreply@blogger.com