This thread needs some votes. Just because there's no straight forwards option doesn't mean you get to leave this to me.

Then again that means I get the tanks I want.
I'm not sure this is formatted correctly - we need to specify that we're planning test apparati, then put out an RFQ for the tanks we want, then we actually test them.
 
This thread needs some votes. Just because there's no straight forwards option doesn't mean you get to leave this to me.

Then again that means I get the tanks I want.

[X] Plan Guns First
-[X]Measure muzzle velocity of all guns
-[X]Test sustained rate of fire over 30min for all guns (I think that should be enough)
-[X]Test how fast the mounts can be turned 180°
-[X]Maximum incline before the gun exerts over 50N on the traverse shaft (manual turn)/Speed against incline is halved (power traverse).
-[X]Time and rounds needed to shoot down a balloon at unknown distance and height (multiple per gun)
-[X]Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track
-[X]Test ability of shells to fuze on thin metal sheets, canvas and wood beams
I do not think cars can move fast enough for any test on shooting moving target relevent in releations to shooting air crafts.

Additionaly using gliders as targets seem kind of expensive when there are already options like target tugs which will allow us to test how well the guns can shoot moving targets how ever far we want and at any elevation.
 
I don't know the state of rocketry, but given the presence of military rockets, I can assume it's developed enough we could use something like a long burning solid rocket motor in the glider combined with Plan Guns First's design to provide higher velocities for a short period. It would preclude some of the cheaper glider designs due to the fire risk inherent to rocket systems, but would work reasonably well I figure.
 
Yes but why waste money on gliders when you can just have a plane tow a windsock to act as a target

Because wind socks aren't that great at showing off damage and honestly you've got a decently good budget for this one.

I don't know the state of rocketry, but given the presence of military rockets, I can assume it's developed enough we could use something like a long burning solid rocket motor in the glider combined with Plan Guns First's design to provide higher velocities for a short period. It would preclude some of the cheaper glider designs due to the fire risk inherent to rocket systems, but would work reasonably well I figure.

Rocketry's pretty developed, but you're still solidly on solid fuels and some liquid fueled madman over in Taelexi who's got a tabletop soder gun and some pipe and making miricles happen and blowing a lot of cornfields to hell and bank. People've weaponized rockets on Thile, but honestly the urbanites who try and use them tend to have disappointing results against the Great not!W-5 Swarm that the feudal despots tend to use when they've got money.

Incidentally there's this one city fielding a "YtSz 73" and the damn thing eats W-5s like they're candy. Good thing the Tank Destroyer Platform test group exists, no?

I do not think cars can move fast enough for any test on shooting moving target relevent in releations to shooting air crafts.

GBA has a racer that can hit like... 180 on a flat with a good hard ground. That's more than enough to tow a kite or glider, but they'll need to modify it some to keep the drive wheels on the ground with the upforce from towing a glider.
 
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[X] Plan Guns First but With Fast Planes
-[X]Measure muzzle velocity of all guns
-[X]Test sustained rate of fire over 30min for all guns (I think that should be enough)
-[X]Test how fast the mounts can be turned 180°
-[X]Maximum incline before the gun exerts over 50N on the traverse shaft (manual turn)/Speed against incline is halved (power traverse).
-[X]Time and rounds needed to shoot down a balloon at unknown distance and height (multiple per gun)
-[X]Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track. To reach speeds accurate to a combat aircraft, a long-burning solid rocket motor in the glider is to be ignited shortly before vehicle engages, propelling the glider to at least 400kph as it is engaged.
-[X]Test ability of shells to fuze on thin metal sheets, canvas and wood beams.

Thanks to its nature, the solid rocket motor should also provide a pyrotechnic alert system to detect particularly damaging hits without any further modification of a conventional glider.
 
Votes call on TUESDAY. We have insufficient votes, ergo shenanigans will happen. You all don't want that.
Adhoc vote count started by 7734 on Jan 6, 2019 at 12:40 AM, finished with 19 posts and 2 votes.

  • -[X]Measure muzzle velocity of all guns
    -[X]Test sustained rate of fire over 30min for all guns (I think that should be enough)
    -[X]Test how fast the mounts can be turned 180°
    -[X]Maximum incline before the gun exerts over 50N on the traverse shaft (manual turn)/Speed against incline is halved (power traverse).
    -[X]Time and rounds needed to shoot down a balloon at unknown distance and height (multiple per gun)
    -[X]Test ability of shells to fuze on thin metal sheets, canvas and wood beams
    [X] Plan Guns First
    -[X]Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track
    [X] Plan Guns First but With Fast Planes
    -[X]Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track. To reach speeds accurate to a combat aircraft, a long-burning solid rocket motor in the glider is to be ignited shortly before vehicle engages, propelling the glider to at least 400kph as it is engaged.
 
[X] Plan Guns First but With Fast Planes
-[X]Measure muzzle velocity of all guns
-[X]Test sustained rate of fire over 30min for all guns (I think that should be enough)
-[X]Test how fast the mounts can be turned 180°
-[X]Maximum incline before the gun exerts over 50N on the traverse shaft (manual turn)/Speed against incline is halved (power traverse).
-[X]Time and rounds needed to shoot down a balloon at unknown distance and height (multiple per gun)
-[X]Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track. To reach speeds accurate to a combat aircraft, a long-burning solid rocket motor in the glider is to be ignited shortly before vehicle engages, propelling the glider to at least 400kph as it is engaged.
-[X]Test ability of shells to fuze on thin metal sheets, canvas and wood beams.

Thanks to its nature, the solid rocket motor should also provide a pyrotechnic alert system to detect particularly damaging hits without any further modification of a conventional glider.
Thirty minutes seems long for sustained fire.

"Maximum incline before the gun exerts over 50N on the traverse shaft (manual turn)/Speed against incline is halved (power traverse)."
This one is pretty arbitrary. Testing stability seems more important. If this tips over at 49 N exerted, it's useless but if it remains stable at 100 N it's fine.

"Time and rounds needed to shoot down a balloon at unknown distance and height (multiple per gun)"
Number of rounds is less important than the weight of those rounds. I'd rather test for time and weight of rounds, as that is what's really important.

"Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track. To reach speeds accurate to a combat aircraft, a long-burning solid rocket motor in the glider is to be ignited shortly before vehicle engages, propelling the glider to at least 400kph as it is engaged."
I'd also like to test the effectiveness while firing at a target moving sideways/in the traverse. AAA doesn't just need to defend itself, but also other assets and this is harder.
 
This one is pretty arbitrary. Testing stability seems more important. If this tips over at 49 N exerted, it's useless but if it remains stable at 100 N it's fine.
Yes, 50N is chosen somewhat arbitrarily. But the point isn't to test when the thing falls over, it's to test how hard the slope can be until it makes turning the whole thing too hard. The gun tipping over is also a failure state for this test, but there's the possibility of the gun not tipping over way past the point where it becomes impossible to operate.
Number of rounds is less important than the weight of those rounds. I'd rather test for time and weight of rounds, as that is what's really important.
Weight of rounds can be directly found from the number of rounds fired. In fact that's the only way, the only difference is how the information is presented.
I'd also like to test the effectiveness while firing at a target moving sideways/in the traverse. AAA doesn't just need to defend itself, but also other assets and this is harder.
That's why the original version without the SRB called for the guns to be positioned of to one side.
 
Votes Called
Adhoc vote count started by 7734 on Jan 8, 2019 at 12:37 PM, finished with 30 posts and 8 votes.

Adhoc vote count started by 7734 on Jan 8, 2019 at 12:37 PM, finished with 30 posts and 8 votes.

  • [X] Plan Guns First but With Fast Planes
    -[X]Measure muzzle velocity of all guns
    -[X]Test sustained rate of fire over 30min for all guns (I think that should be enough)
    -[X]Test how fast the mounts can be turned 180°
    -[X]Maximum incline before the gun exerts over 50N on the traverse shaft (manual turn)/Speed against incline is halved (power traverse).
    -[X]Time and rounds needed to shoot down a balloon at unknown distance and height (multiple per gun)
    -[X]Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track. To reach speeds accurate to a combat aircraft, a long-burning solid rocket motor in the glider is to be ignited shortly before vehicle engages, propelling the glider to at least 400kph as it is engaged.
    -[X]Test ability of shells to fuze on thin metal sheets, canvas and wood beams
    [X] Plan Guns First
    -[X]Measure muzzle velocity of all guns
    -[X]Test sustained rate of fire over 30min for all guns (I think that should be enough)
    -[X]Test how fast the mounts can be turned 180°
    -[X]Maximum incline before the gun exerts over 50N on the traverse shaft (manual turn)/Speed against incline is halved (power traverse).
    -[X]Time and rounds needed to shoot down a balloon at unknown distance and height (multiple per gun)
    -[X]Test ability to hit a moving target by towing a glider behind a fast car. Car moving towards gun, gun 350m to the side of the endpoint of the towing track
    -[X]Test ability of shells to fuze on thin metal sheets, canvas and wood beams
 
Contest 8: Gun Testing
After about a week of deliberation and paper shuffling, you came to the critical realization that you could do guns as a testing aparati totally separately from everything else, and probably weed out a lot of the dumb vehicles that would get mailed in to you by the manufacturers who seemed to be popping up like weeds these days. After making plans to do some tests, you went out to Ulm the next Monday and got ready for a show.

First was muzzle velocity, which would be measured by means of a Loomis chronograph, taken at a range of one hundred meters. Three shots would be taken, and then averaged.

Starting things was the Baal Arms entrant, which clocked in at 745 meters per second, and had no issues during test firing, delivering the entire clip of ammunition easily.

The Potsdam Armory gun, meanwhile, clocked in at 720 meters per second, and during testing proved disturbingly ornery with afixed metallic belts used.
The Kriegsmarine Schnellboot Program gun performed admirably well, shooting at 865 meters per second with no issues in the gun.

The Furrer and Mukame gun, firing the short cartridge, tested in at 870 meters per second with no issues of the gun or feed mechanism, despite a small number of rounds landing over the target due to a poor fit on the testing bench.

The standard Armor Branch 2cm autocannon performed in a rather lackluster fashion, clocking in at 684 meters per second. No issues were had with the gun or the feed strip loading.

The Lighting Knife, after some exciting issues with the fire control and the fact that one could not spool the gun "full", proceded to test fairly normally, with rounds hitting in around 853 meters per second.

Next up came the sustained fire testing. Shooting would start, and continue for thirty minutes, with the rounds per minute being calculated via division of rounds fired in the test over time. Fire would take place at zero degrees of elevation, and time would not be stopped for stopages that did not require an armorer to repair.

Again, the Baal Arms entrant went up, and continued belting out fire without any care in the world. With three stoppages due to shell non ignition (two due to primer failure, one due to a faulty firing pin strike) the gun kept up a cyclic eighty one rounds per minute, getting as high as ninety-five rounds per minute at one point before a stoppage. The gun handling crew liked the ease of the top loading arrangement, but disliked the gun's loud report and massive dust clouds it could kick up. It was requested also the gun be fitted with a flash hider or other muzzle device to help with these issues. It was noted, however, that due to the automatic loading system, there were two run-on fires in testing, neither of which were easily controlled.

The Potsdam Armory gun had issues, as testing crews quickly determined it would need two tests. The first test, with metallic continuous feed belts, was riddled with jams, extractor failures, shell lift failures, and failure to feed. Stopages were had nearly every three minutes, and the gun had the tendency to overheat massively on at least two occasions. After the numbers rolled in, the consensus was the gun averaged roughly two hundred and twenty rounds per minute, with a frankly disastrous number of jams and two one-minute periods spent cooling the gun after it had started suffering runoffs. Once cool to the touch and equipped with separating metallic belts, however, the majority of the issues disappeared, and were instead replaced by rampant overheating issues as the gun regularly suffered runoffs, each requiring a minute of cooling. Despite this, the gun was much more reliable, which lead to an average of four hundred and sixty one rounds per minute on the second test.

The Torpedo Boat Gun was next, and performed in an amazingly mediocre fashion. With only six stoppages due to overheating, the gun fired amazingly well as long as there was a steady supply of ammunition in the hopper. The only major complaint the testing crew had was the weight of the mainspring when manually recharging the gun, and the fact the bolt had to be locked open in order to rotate the loading spindle- although the fact the bolt had a lock-open position was appreciated. The only major suggestion was for a muzzle device for the same reason as the Baal- reducing dust and noise. In cyclic fire, the gun maintained about sixty five rounds a minute, and crews felt the spindle loading system was fairly reasonable, especially with the new "backup loader" gravity chute on the opposite side of the spool's drum that held an additional ten rounds in case the main load chute emptied out or something made it skip a cylinder.

Fuerer and Mukame were after the Torpedo Boat Gun, and promptly started demonstrating why nobody seriously liked toggle locks anymore. With a whopping ten stoppages, in large part to the gun over-recoiling and then 'bouncing' as it hit the chamber thus bringing it out of battery. Other than that, it had a very pleasant feel to it, and felt familiar to anyone who'd used a butterfly trigger Mg.51 for any length of time. Thanks to the ability to link the Nylassander-pattern canvas belts together into an infinite feed, much like a modern metallic non-disintegrating belt, the gun otherwise kept up a very good stream of fire, until it ran its water jacket dry and needed a refilling. In sum, with five hundred and twenty rounds a minute nearly constantly, the testers quite liked the gun and couldn't hear a word you said otherwise.

The bog standard 2cm Slk.69 was on the blocks after that, and to the suprise of nobody was a complete bore to watch. Rattle off a belt, stop, clear the action, thread a new belt in, drop the bolt out of the safety notch, repeat. It had two extractor failures, somehow, and one overheating that required a minute to cool the gun. All in all, it had a good five hundred round a minute pace, which was rather nice.

Last, but certainly not least, was the Lightning Knife platform, which caused some test concernation. Once the two thousand round chute was loaded, the testing team started the generator, threw the switch, and watched it go. Aside from one stopage when a test assistant accidentally loaded a box into the hopper backwards and several nominal pauses in firing where the feed was empty and the motor was still running, the gun operated continuously without issue through the entire test. After, however, there were some issues discovered, including one barrel with the bolt edifice nearly fused shut, one barrel with the firing pin punched straight through the back of a cartridge, and one barrel which had snapped a firing pin. This last barrel, most interestingly, had attempted to fire every cartridge put through it, and then ejected the still-unfired projectile without noting the issue. That could be a plus or a minus, you weren't sure yet. What was nice was the fact it was belting out an (estimated; those lost barrels probably futzed the math) eight hundred ninety rounds a minute.

You wanted to test mounts, but there was the slight issue none of the guns had AA mounts, and more importantly wouldn't work with the standard double 13.2mm gun mount. A minor oversight, but educational, since currently all your tests were being done on the old wooden W.45 and .48 artillery carriages with varying amounts of modification.
While you planned to do balloon tests, the voice of wisdom you had (and your chief of staff) told you it might be a good idea to start out with fuse tests. As the Fuerer & Mukame design, Slk.69, and Lightning Knife all fired solid shot, they would be excluded from this round of testing. The targets were all going to be some dozens of condemned planes the Luftwaffe had provided, explaining they had basically flown the wings off and structural damage had made them terminally unsafe. Fire was going to be put on the planes at one, two, and five hundred meters.

The Baal was up first, and quickly ran into the issue it's shells wouldn't fuse on the canvass at the close range targets, only the five hundred meter target. They would, however, fuze on just about any other hit to the plane at any range- gas tank, engine, cockpit armor, wings, radiator, frame, and even one memorable shot where the shell fuzed on the canvas after tumbling through the wing, through the fuselage, and then on the other side.

The Potsdam Armory gun, meanwhile, had shells that exploded on every hit regardless of strike location or range. While you weren't convinced the rather sorry-looking holes they punched into the planes were going to do anything, Janzen informed you that all of these planes had been terminally damaged, and any one hit would take them out of the sky.

The Torpedo Boat Gun wasn't as bad as the Baal when it came to fuse failures, since it would sometimes fuse on the two hundred meter target's canvass, but it still prefered a solid hit. Also like the Baal design, what it hit was most certainly not operational. In one rather memorable shot, a radiator hit (under the forward fuselage) was enough to destroy the wing spars, and therefore take off the lower right wing.

Balloon tests were postponed, as the only balloon-certified working unit, the Erika battalion of Ninth Air Regiment, were currently helping work up the Eleventh Air Regiment, tentatively scheduled to be a Naval Attack Squadron based out of Edelweiss Air Base on Edelweiss Island.

Towed glider tests, meanwhile, would procede when you actually had mountings for these guns lined up. Considering the number of horses you'd swapped to get five Krammer racing coups from GBA, those tests were happing hell or high water- unless they managed to totally fuck it up, you'd almost have to drag whatever they sent you through the first round of testing.

Which, speaking of mounts, got you a message back from High Command that was a bit of an issue. Apparently, the anti-aircraft corps of the artillery branch had decided to standardise on a two-level flak project, and recommended that therefore the correct response was for you to adopt a two-level flak system- a short-range point defense gun, and a longer range gun that might be able to make crossing intercepts. More importantly, however, was the fact your vehicles were totally absolved from any strategic defense imperative, due to the creation of Flakcorps regiments responsible for protecting strategic assets like rail lines. Said Flakcorps might look into buying some of your tanks, though, so please please look into working quickly because they couldn't actually start a procurement program right now.


Votes

(You have guns, you have a testing plan. Time to write a Request For Quotes.)
 
I can't tell if it's good or bad that the strategic defense got cut from the scope of our AA gun program.
...Probably good.
 
I'm quite liking a high-low of the Lightning knife (for its error-handling and fire rate) and the Potsdam gun (for its reasonable operation in disintegrating belt mode and impressive damage) myself, and it definitely helps that we don't have to do strategic defense anymore.
 
I can't tell if it's good or bad that the strategic defense got cut from the scope of our AA gun program.
...Probably good.

Honestly at this point the idea of having dedicated AA is a bit odd and they're taking a very mixed approach to it. The concept of strategic AA is about as far as they've got, but they're deadly affraid of flying artillery like a hypothetical Il-2; so they really want you to counter that and as an aside the other bombers that make you guys have Bad Days.
 
I'm quite liking a high-low of the Lightning knife (for its error-handling and fire rate) and the Potsdam gun (for its reasonable operation in disintegrating belt mode and impressive damage) myself, and it definitely helps that we don't have to do strategic defense anymore.
I'm rather "meh" on the Lightning Knife myself - it's impressive, sure, but there were a massively alarming number of mechanical failures during the sustained fire test that were entirely independent of bad ammunition as far as I'm aware. I'd honestly like to get the Lightning Knife into a gun smith to see if they can figure out what exactly went wrong with the barrels that did fail.

Other than that, though, I do agree that the Potsdam gun seems like our best "high" option, although all things being considered, I think it might not be a bad idea to see if we could get a radiator system set-up to enable the gun to just keep firing without worrying about pauses for overheating. Or at least add a water jacket that can be re-filled from a towed water tank or something. That could also allow for something that could lead into some sort of early flamethrower tank, as it would give engineers experience with the basics of running fluids from a tank in a trailer to a weapon in a turret.
 
I'm rather "meh" on the Lightning Knife myself - it's impressive, sure, but there were a massively alarming number of mechanical failures during the sustained fire test that were entirely independent of bad ammunition as far as I'm aware. I'd honestly like to get the Lightning Knife into a gun smith to see if they can figure out what exactly went wrong with the barrels that did fail.

Other than that, though, I do agree that the Potsdam gun seems like our best "high" option, although all things being considered, I think it might not be a bad idea to see if we could get a radiator system set-up to enable the gun to just keep firing without worrying about pauses for overheating. Or at least add a water jacket that can be re-filled from a towed water tank or something. That could also allow for something that could lead into some sort of early flamethrower tank, as it would give engineers experience with the basics of running fluids from a tank in a trailer to a weapon in a turret.

The lightning knife is simultaneously a complete piece of crap and so simple, robust and fault tolerant that it can keep going even as it shoots itself to pieces. My read on it is that the basic mechanism is very sound, but it needs a more or less complete redesign built to handle rapid, sustained fire and with no consideration for the constraints involved in keeping it legal on the civilian market.
 
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