Military Ground Vehicles of Your Nation [NO MECHS] Mk.V

[Risen Britannia]

Military Ground Vehicles of Your Nation (5)

For vehicles an' stuff

House rules (would you kindly read these)
1: Read the OP. As you can probably guess from the title this thread has been round a while, the OP contains all allot some of the knowledge gained from previous iterations.

2: By posting you are accepting that your vehicle/plans/ideas can be criticized, however it is up to you whether you listen or not (though you aren't going to make friends if you don't)

3: Please attempt to be reasonably civil to each other. Discuss, do not flame, do not bait, no matter how right you think you are, or wrong the other guy is. Stay on topic. Please simply report any unreasonable lapses that don't correct themselves.

4: Not really a rule but to see how many people actually followed rule 1, somewhere within your first post have the word "cabbage" (and no, there are no other tricks in the OP)

5: IC and OOC are both fine.

6: If asked multiple times to place images you post under a spoiler tag, you WILL do so. Nobody likes picspam.

7: No feeding the trolls

8: Respect is earned, and your post probably isn't as funny as you think it is.

9: No one has 'ownership' of this thread, it's concept, it's execution, nor does any player have the right to deny use of, or reference to it. Everyone is welcome so long as you respect the thread rules, and intent of the topic.

GOLDEN RULE
No mechs. This means no legged vehicles, or any sort of vehicles that rely on legs for movement, even if designed to fulfill the same role as tanks. This includes hybrids like Ghost in the Shell think-tanks and Tachikomas. If you're looking for a thread about mechs, please follow this link

Past threads:
For the previous threads, click here:
Part 1
Part 2
Part 3
Part 4

Useful Links:
NS Military Realism Consultation Thread.
Argument Thread OOC Future Tech Only
Advice Thread OOC Future Tech Only
Why Mecha fail
Twin-gun tanks.
Main Military Weapon of Your Country
(that last one is a good thread )

---

Thanks to Dread Lady Nathicana who I may have 'stolen' some of this OP from.
OP is a work in progress, thread experience may change during online use.

The "V-0" of my Gun calculator

Gun Calculator

For those problem with mediafire.. you may try using this to view the file instead

View

alternate links

http://depositfiles.com/files/5m1i2pchz

It will calculate muzzle velocity, recoil force, inflight velocity of a projectile and it may provide simple assessement whether your vehicle can safely fire the gun without causing uncomfortable vibrations to the crew.

The spreadsheet is largely based on "Technology of Tanks" by Ogorkieswicz and a book about theory and practice about ballistics and gun designs.

Future updates may include some "penetration" calculator to calculate penetration of projectile to object other than metals (say..concrete)

Final remarks is use at your own risk.. hmm it's still pretty much in infacy.. many stuff there need to be cross checked and debugged. I'm actually want to use Odermatt's equation for calculating maximum pressure but it doesn't seem to work..so i'm stick to Technology of Tanks.

Contact information is provided inside the sheet.

In an attempt to get people to start linearting more and because I know from personal experience that the tracks are often the hardest bit to get right, I have decluttered my tracks (not the best but they work) and they are now free to use, You don't even have to ask.

(Image)

Any modifications big or small are fine.

[Risen Britannia]

Just a heads up, as I am not going to be on tomorrow I posted this thread a tad early, so if you could keep using the old Mk IV till it's full that would be great.

viewtopic.php?f=23&t=174604&start=12325

[Nirvash Type TheEND]

T-84 Oplot M forms the backbone of the Nirvashi military.


EDIT: Whoops

[Ea90]

The majority of the Yanintovian Armed Forces use the Questarian SA-20 Ermine-R as their Main Battle Tank.

[Purpelia]

Anyone care to take a guess what this is? Aside from the most awesome MBT idea ever I mean.
Also I am posting this for a reason. Well two reasons in fact. The first one is that I have some actual plans relating to it. And the second is that I want to cast foreshadowing about those plans.

[Rich and Corporations]

:

... Fergana, which I just finished.

https://dl.dropboxusercontent.com/u/870 ... ergana.png

Do you have a side - by - side comparison with the abrams and the Fergana?
Or even the Kodiak for that matter?

[Lubyak]

I can't wait to debut the new Lubyakan CAmouflage Barrier/Bastion Aggregate Generator Envelope. It'll revolutionize NS armoured warfare.

[Rich and Corporations]

In my 60s era heavy tank, I'm wondering...
Napier Sabre for a powerplant? This would make the tank ridiculously long though.

[Purpelia]

In my 60s era heavy tank, I'm wondering...
Napier Sabre for a powerplant? This would make the tank ridiculously long though.

Why not just mount it sideways? Also, I get the feeling that by the time you tune down the RPM and generally adapt it for ground use the power would drop sharply.

[Rich and Corporations]

In my 60s era heavy tank, I'm wondering...
Napier Sabre for a powerplant? This would make the tank ridiculously long though.

Why not just mount it sideways? Also, I get the feeling that by the time you tune down the RPM and generally adapt it for ground use the power would drop sharply.

Still, a potential 1,500 hp is nothing to sneeze at.
And transverse mounting is uh... makes it too wide.

[Lubyak]

Perhaps in the OP we could have some FAQ we've answered? Like why two barreled tanks and mecha are bad and what not.

[Purpelia]

Still, a potential 1,500 hp is nothing to sneeze at.

Newer said that it was.

And transverse mounting is uh... makes it too wide.

Too wide? The thing is just over 2m long total. Your average tank is 3+m wide. So there should be enough space for it.

[Rich and Corporations]

Still, a potential 1,500 hp is nothing to sneeze at.

Newer said that it was.

And transverse mounting is uh... makes it too wide.

Too wide? The thing is just over 2m long total. Your average tank is 3+m wide. So there should be enough space for it.

So how is power transmitted to the sprockets exactly? Needs some kind of transmission, as well as a set of gears... so... oh. Yeah, the total length will increase on that basis alone.

[Risen Britannia]

Perhaps in the OP we could have some FAQ we've answered? Like why two barreled tanks and mecha are bad and what not.

if someone (or a group) were to make a list i would happily add it to the OP.

[Samozaryadnyastan]

The People's Standing Army utilises the T-108 "Tsar Davida" (King David) armoured fighting vehicle as its primary battle tank.

Built to adopt a more conventional armoured vehicle more in line with western attitudes to armour design, it replaced the T-90 and the various T-90 upgrade platforms previously in service with the People's Standing Army.
The current-issue T-108MS, fielded in high-readiness formations, represents the latest in armoured vehicle developments. It features a highly advanced sensor suite, brand-new armour scheme, improved protection suites and reactive armours, and an improved capability gun and autoloader.

With a calibre of 125mm, the 2A100 gun (developed from the 2A90 gun of the T-108M, in turn developed from the T-90's 2A46 also used in the T-108) is capable, in extreme circumstances, of even accepting ammunition of the 2A46 and 2A90 series of guns, though such rounds are incompatible with the autoloader.
The Ammunition of the 2A100 is one-piece, and stored in a bustle autoloader modelled after the Meggitt autoloading system. 49 rounds may be carried, and all of them may be considered "ready". There is no additional stowage space within the hull, though space for bins of loose ammunition may be carried in extreme circumstances under the turret basket.
The autoloader design limits ammunition to a maximum overall length of 125cm, which permits significant future development of APFSDS ammunition and offers significantly heavier and more powerful ammunition than 120mm or original 125mm guns. In-service rounds include APFSDS, HEAT-FS and gun-launched ATGMs. In limited service are HE-FRAG munitions and "demolition" rounds.
As additional armament on the T-108MS model, is the 14.5x114mm Shrike heavy machine gun as a co-axial weapon, with four hundred rounds carried ready. A roof-mounted Remote Weapon Station mounts the Shrike 2 autocannon, upgunned to the 23x115mm autocannon cartridge. The station carries 227 rounds ready. The station also has provision for mounting two tubes of the Vampir ATGM, or alternatively to up-gun to a 30x165mm cannon with a 7.62mm GPMG coaxial. The station, in this configuration, carries 127 ready rounds of 30mm ammunition, as well as a one-thousand round belt of 7.62mm
Additional ammunition for the 14.5, 23, 30mm guns may be carried in the turret. The coaxial gun is managed and reloaded by the gunner, the remote weapon station's systems by the Commander. The Shrike 2 station (known as the Improved Lethality System) replaces the Shrike station of the T-108 and T-108M series.

This post may be updated.
Chances are, meh.

[Crazy girl]

Perhaps in the OP we could have some FAQ we've answered? Like why two barreled tanks and mecha are bad and what not.

if someone (or a group) were to make a list i would happily add it to the OP.

http://forum.nationstates.net/viewtopic ... 9#p7227419
Twin-gun tanks.

Why Mecha fail.

[New Tsavon]

Tanks? Tanks.

[Samozaryadnyastan]

:

... Fergana, which I just finished.

https://dl.dropboxusercontent.com/u/870 ... ergana.png

Do you have a side - by - side comparison with the abrams and the Fergana?
Or even the Kodiak for that matter?

I believe somewhere in the Mk3 or 4 threads there may be a comparison between the original Ermine and the Abrams.

[Rich and Corporations]

Samo... here's my advice, 125mm 125cm long ammunition would be too heavy to handle in case the autoloader fails. I suggest two piece ammunition each 75cm long. It would be more powerful then 125mm 125cm, and easier to handle as well.

[Purpelia]

Newer said that it was.


Too wide? The thing is just over 2m long total. Your average tank is 3+m wide. So there should be enough space for it.

So how is power transmitted to the sprockets exactly? Needs some kind of transmission, as well as a set of gears... so... oh. Yeah, the total length will increase on that basis alone.

Mount the transmission parallel to the engine and gear the two together via a simple gear box that does a U turn.

[Samozaryadnyastan]

Samo... here's my advice, 125mm 125cm long ammunition would be too heavy to handle in case the autoloader fails. I suggest two piece ammunition each 75cm long. It would be more powerful then 125mm 125cm, and easier to handle as well.

In event of autoloader failure, like most autoloaders in service, there are manual controls.
When I mention about utilising the ammunition from the 2A90 or the 2A46, those would be loaded completely by hand.

The ammunition being awkward is an intentional thing. Since the adoption of this gun, there's yet to have been a conflict which involves significant mechanised warfare. The gun has seen action against enemy armour, but against a weakened and scattered enemy force.
There's a war upcoming which is supposed to challenge (in IC, at any rate) most of the doctrinal and equipment choices my forces have made (proliferation of battle rifles, odd armour design, strange integration of air assets and air assault troops, organisational choices).

Also, the ammunition isn't actually 125cm, that's what the autoloader could theoretically handle.
I've yet to design the ammunition.
Or the tank.

That length is probably subject to change, anyway.

[Rich and Corporations]

So how is power transmitted to the sprockets exactly? Needs some kind of transmission, as well as a set of gears... so... oh. Yeah, the total length will increase on that basis alone.

Mount the transmission parallel to the engine and gear the two together via a simple gear box that does a U turn.

Which would make the tank too wide and too long simultanously? Seriously? Your proposal offers none of the advantages of a transverse mounting.

[Purpelia]

Mount the transmission parallel to the engine and gear the two together via a simple gear box that does a U turn.

Which would make the tank too wide and too long simultanously? Seriously? Your proposal offers none of the advantages of a transverse mounting.

Well it all depends on how wide and long your gearbox is. A U turn could after all be made by as little as just two gears or a pair of crank shafts and a chain running in between. You might actually get a net improvement in length.

[Risen Britannia]

Why not just mount it sideways? Also, I get the feeling that by the time you tune down the RPM and generally adapt it for ground use the power would drop sharply.

Still, a potential 1,500 hp is nothing to sneeze at.
And transverse mounting is uh... makes it too wide.

Why 1,500 hp? the Sabre E.122 (3,500 horsepower) came out in 1946, add a decade and a bit of developed to that and you would have a powerful, well tested engine

Also dont worry, its only 0.2m longer than the Leo2s engine

[Rich and Corporations]

Which would make the tank too wide and too long simultanously? Seriously? Your proposal offers none of the advantages of a transverse mounting.

Well it all depends on how wide and long your gearbox is. A U turn could after all be made by as little as just two gears or a pair of crank shafts and a chain running in between. You might actually get a net improvement in length.

That's ignoring all the unusable space between the engine, gears, and sprocket due to your byzantine arrangement.
Edit:

Still, a potential 1,500 hp is nothing to sneeze at.
And transverse mounting is uh... makes it too wide.

Why 1,500 hp? the Sabre E.122 (3,500 horsepower) came out in 1946, add a decade and a bit of developed to that and you would have a powerful, well tested engine

The fuel consumption at full power is insane.
Furthermore, derating an engine will increase it's life expectancy, reducing maintenance costs.