Competition: Californium 2250

[A. T. Mahan]

Just now, Sturgeon said:

the fuck is up with your round

 

It's an Armor Piercing, Solid Fuel Ramjet-powered GLATGM with an 850mm long, 50mm diameter molybdenum tool steel penetrator, capable of killing the reference vehicle at ranges in excess of 7,500m. 

[ckfinite]

23 minutes ago, Sturgeon said:

the fuck is up with your round

 

It's axisymmetric reexpansion!

[Toxn]

On 5/22/2019 at 6:05 PM, N-L-M said:

Well, now's as good a time as any for the great announcement:

 

ATTENTION COMPETITORS:

@Toxn

@Collimatrix

@LostCosmonaut

@Lord_James

@DIADES

@Datengineerwill

@Whatismoo

@Kal

@Zadlo

@Xoon

And any others I may have missed:

The time of submission is approaching, and the DPRC is getting ready to evaluate your designs!

Detailed submission guidelines will be posted soon in a dedicated thread.

The date of submission is in 3 weeks from the time of posting, Tuesday the 11th of June at 23:59 GMT.

 

Incomplete designs may be submitted as they are and will be judged as seen fit.

Is today still the submission date?

[N-L-M]

No, sometime next week, sorry. Update soon.

[Toxn]

6 hours ago, A. T. Mahan said:

 

It's an Armor Piercing, Solid Fuel Ramjet-powered GLATGM with an 850mm long, 50mm diameter molybdenum tool steel penetrator, capable of killing the reference vehicle at ranges in excess of 7,500m. 

Thats... uh... ambitious given the 'USSR 1960s' state of technology. I'd be very interested to see how you pull it off :)

[A. T. Mahan]

12 minutes ago, Toxn said:

Thats... uh... ambitious given the 'USSR 1960s' state of technology. I'd be very interested to see how you pull it off

 

The answer is something like three weeks of ANSYS and a lot of research. I would have used a supersonic wind tunnel but they’re phenomenally expensive 

[A. T. Mahan]

In further pursuit of open discussion of the development of tracked vehicles, SNVZ is proud to offer the RSD-1 Innovator intermediate range ballistic missile complex, capable of delivering a 425kg warhead to 1,800km with sub-100m CEP, or a heavier warhead to shorter ranges. 

 

Also, the tracks have gone missing. If anyone sees them, please return them.

 

Below is an image of the 15Zh6 Innovator ballistic missile, which should deconstruct notions of masculinity and phallic imagery via its role defending the peace-loving matriarchal society of the DPRC, and deliver rapid reeducation through either chemical, high explosive, or special warheads in under 30 minutes, with a response time of approximately five minutes from receiving a launch order to firing, from the transit mode at a pre-prepared firing position. 

[LoooSeR]

-Hey, participate in our cool tank competition!

-Yes! *designs PGRK Pioneer on tracked chassis"

[A. T. Mahan]

20 minutes ago, LoooSeR said:

-Hey, participate in our cool tank competition!

-Yes! *designs PGRK Pioneer on tracked chassis"

 

That’s not at all what I did! If anything, it’s more similar to a Pershing II

[Xoon]

13 hours ago, N-L-M said:

No, sometime next week, sorry. Update soon.

Thank god, I can sleep.

[Sturgeon]

Yeah so for the record the final submission date got pushed back AT LEAST a week due to the forum fuckery that lost us almost two weeks' worth of site activity. It's not a big deal, but something for our competitors to know.

 

I will probably submit just a gun, and not a tank to go along with it.

[Sturgeon]

23 hours ago, A. T. Mahan said:

 

It's an Armor Piercing, Solid Fuel Ramjet-powered GLATGM with an 850mm long, 50mm diameter molybdenum tool steel penetrator, capable of killing the reference vehicle at ranges in excess of 7,500m. 

 

da fuq

[A. T. Mahan]

On 6/11/2019 at 11:48 PM, Sturgeon said:

 

da fuq

We explain it all quite thoroughly in the proposal paper. 

[Lord_James]

Are Mg alloys AMX602 or ZAXE 1711 available for use? Or maybe WE43B and Elecktron 21 (EV31A)? I'm thinking about using some Mg to lighten my vehicle. 

 

AMX + ZAXE: 

https://apps.dtic.mil/dtic/tr/fulltext/u2/a562406.pdf

 

WE43: 

https://apps.dtic.mil/dtic/tr/fulltext/u2/a562514.pdf

 

Elektron 21 + WE43: 

https://apps.dtic.mil/dtic/tr/fulltext/u2/a597768.pdf

[N-L-M]

Not available no. 

Also be advised that you have less than a week, time to wrap things up.

[A. T. Mahan]

Question: Where do we discuss the entries, here or the submission thread?

[Sturgeon]

32 minutes ago, A. T. Mahan said:

Question: Where do we discuss the entries, here or the submission thread?

Formal proposals in the other thread, general back and forth here. I believe.

[A. T. Mahan]

I'm looking forward to seeing what else turns up aside from Toxn's and my team's stuff

[Toxn]

I'm struggling a bit with the track length-to-tread ratio.

 

Stumpy has a 3.7m track contact length, and the tracks are each 63.5cm wide. Which doesn't result in a ratio anything like 1.5-2...

[N-L-M]

Tread is the distance between the *centers* of the tracks, ie how far apart their centerlines are.

[Toxn]

On ‎6‎/‎18‎/‎2019 at 3:00 AM, A. T. Mahan said:

I'm looking forward to seeing what else turns up aside from Toxn's and my team's stuff

I'm looking forward to my post not being as lonely as it currently is.

[Toxn]

@N-L-M another minor question: when the armour requirements talk about x degrees off centreline, my understanding is that they're not talking about the total envelope. So 90' off centreline is an attack directly perpendicular the side rather than an attack coming in at 45'.

 

Is this correct?

[A. T. Mahan]

@Toxn We will be submitting our design today

[N-L-M]

46 minutes ago, Toxn said:

@N-L-M another minor question: when the armour requirements talk about x degrees off centreline, my understanding is that they're not talking about the total envelope. So 90' off centreline is an attack directly perpendicular the side rather than an attack coming in at 45'.

 

Is this correct?

Yes. Off the centerline = measured from the centerline = arc is in total double this angle.

[Kal]

 

 

oops, inspired by DP 27, M 789 HEDP, OBUS G and the glorious 2S7, Kal corp offers a 12 round, 240mm HEAT autocannon.

(also capable of lobbing a Kleshchevina derivative:  Nuclear shell, if needed.

 

standard shell, M789 but at 240mm dia, so at 1.5x that 360mm penetration plus blast effects

enhanced ported shell Obus G but at 240mm, so at 3.5x thats 840mm penetration plus blast effects

mercury float HEAT shell, single charge at 5x, thats 1200mm penetration plus blast effects

mercury float HEAT shell, dual charge at 5x, thats 800mm precursor + main 1200mm penetration, less blast effects

 

each round is accurate to 3,000 metres, substantially superior to peers.  (tradeoff, penetration for increased accuracy)

 

barrel is mildly rifled, ala M230 LF & AMX 30's gun

 

unfortunately, each shell is just a tad over 100kg, so must be reloaded at depot via crane.  so despite onboard storage being plentiful, official capacity is limited.