NationStates Jolt Archive


BDR-20 AFV enters service with Ground Forces

USSNA
12-07-2005, 14:51
BDR-20 Armored Fighting Vehicle

http://img349.imageshack.us/img349/4290/bdr20acopy4ov.gif


Introduction

The BDR-20 AFV was designed to provide a vital nitch left almost completely left out of modern designing: combat reconnaissance and the support of the BMP-R IFV and T-115 MBT. The combat reconnaissance role usually entails aggressive seek-and-destroy missions, deep in enemy territory.

The BDR-20 is, simply put, superior to almost anything else in its category by outperforming them in speed, range, armor, and armament. It will continue to serve well into the next generation of tank design.


General Information

Length: 7.1m
Breadth: 2.9m
Height: 2.75m
Weight: 45 tonnes
Ground Pressure: 0.795 Kg/Cm³
Ground clearance: 0.4m

Crew: 3

Vertical. obstacle: 1.0m
Trench (crawl): 2.0m
Trench (at 37mph): 1.0m
Max. fording depth (unprepared): 2.0m
Max. Fording depth (prepared): 4.0m

Max. speed (road): 55 mph
Max. speed (off-road): 33-35 mph

Fuel (onboard): 1,060L
Fuel (outboard with piping): 440L


Armament

Main gun: The BDR-20 is fitted with the TK-120E/49 (2A73) 120mm 49-calibre smoothbore Electro-Thermal-Chemical gun. This gun was developed from the experimental 2A72 125mm smoothbore gun tested for the navy's warships, and is capable of a rate of fire as high as one round every three seconds. It employs a vertical rotary loading system, which occupies the loader's position within the tank. Its operation can be found in detail at the end of this description. The loader carries 8 ready-use rounds, with the remaining rounds being stored in vertical racks within the AFV.

Main gun ammunition types: APFSDS, HEAT, HEI-T, HE-FRAG, Smoke, ATGM (AT-21 Diamond (http://forums2.jolt.co.uk/showpost.php?p=7205007&postcount=10))

Max. accurate range: 4.6Km
Max. range (indirect fire): 9.8Km
Armour penetration (APFSDS @ 1,250m, angle 30 degrees): 1,750mm RHA

Secondary weapons: One coaxial 7.62mm PKTM MG with 14,000 rounds
7.62mm PKTM MG with 4,000 ready rounds

Optional weapons: none


Armour

The BDR-20 carries multi-layer composite-based armouring, which is built as follows:

1) Outer layer of 15mm Tungsten Carbide, designed to deform DU and Tungsten penetrators.

2) Layer of ceramics encased in plastic resins, approx. 30mm thick.

3) Layer of Type 22 composites, comprising titanium alloy rods in a horizontal lattice trilayer with coatings of Vectran spun plastic fibre, set within thermosetting plastics.

4) Layer of 20mm thermosetting foam plastic.

5) Layer of Type 22 composites.

6) Steel main body of AFV.

7) Synthetic, lead-based layer for use in elimination of neutron radiation.

Frontal armour equivalent RHA: 750mm
Side armour equivalent RHA: 550mm
Rear armour equivalent RHA: 150mm
Roof armour RHA equivalent: 175mm
Belly armour RHA equivalent: 100mm

Note that the fitment of Kontakt-VI ERA will boost each of these values by around 100mm.


Electronics

Fire-control system

The BDR-20’s main fire-control system for the main and secondary armament is the newer CTFC-11E IFCS, developed by the Colossus Section's Electronics Lab (CEL).

Navigation equipment

The BDR-20 carries the TINS system, but its main navigation aid is the TPS-2 tank GPS system. This has an accuracy of 0.4m.

Commander's Situation Computer

The BDR-20’s CSC is the CSC Mk.1 from CEL. CSC-1 is designed to allow the commander to both send and receive information from all other sources on the battlefield under any conditions, and has proven highly useful in exercises. It far surpasses the older and cruder method of radio reporting, in that now a picture can be used in place of speech, removing the inaccuracies therein.

CSC-1 is primarily intended for use by the unit commander to communicate data to his comrades in the theatre. It can both transmit to and receive from the CTFC-11E IFCS. In addition, it can be updated from compatible intelligence assets within its operating range. Data are transmitted via encrypted satellite link or in case this is too dangerous or not available digital radio transmitter. Updates from the GPS system can be delivered by either method at intervals of as little as two seconds (where intelligence must be immediate and accurate) to as much as 20 minutes.

Visual aids

The BDR-20 employs the A4M1 "Navada" thermal imagine sighting system, which is linked to the periscopes of both driver and gunner and to the tank's . The A4M1 introduces a further level of cohesion to the fire-control system with the introduction of the Wraith warning system. When this system is activated, the tank's six ImIR units for the TCM-20 system are used to detect any vehicle or heat-emitting object moving within range of detection but not within the field of view of ether turret crewman. Should these be recognized as hostile, the turret crew are alerted by a soft buzz and a small yellow arrow that appears on the screen, subscripted with the word "HOSTILE" and pointing towards the target. The CSC-1 is also updated with its position. This feature can be enabled at will, but allows the crew a greater degree of situational awareness than was previously possible.

Imaging Infra-red

The BDR-20 is equipped with the TKS-6 computer-controlled ImIR system, designed to allow early detection of incoming ATGMs. The TKS-6 is controlled by the main fire-control computer, and its omnidirectional detectors scan constantly for the characteristic backblast and flame of an ATGM launch. Upon detection, the main FCS alerts the crew and deploys all available countermeasures.

Countermeasures systems

The BDR-20 is equipped with the TEC-3 countermeasures suite, which integrates the Shtora-1 optronic jamming system (for use against ATGM lasers, IR seekers and laser rangefinders) with the CrossLoop radio jamming array (for use against ATGM radars and enemy radio).

CrossLoop has a range against most modern radio systems of around 10 Km and can be programmed to track specific code sequences within transmissions.


Propulstion systems

Engine

The BDR-20 is powered by an updated version of the DSO-1400 multi-fuel Deltic-pattern diesel engine in the T-94B and T-95M, the same engine in the T-115 MBT. This being used to ease logistics and repair. The DSO-1400A is rated at 1,992 BHp and has eighteen cylinders arranged in the "Deltic" configuration of 10.7L capacity.

Transmission

The BDR-20’s main transmission is the TTS-45 gearbox. It is a planetary gearbox, with seven forward and three reverse speeds. TTS-45 was noted during trials for high reliability even when subjected to the harshest performance tests in terms of longevity, treatment and climate.


Miscellaneous

The BDR-20 is fully NBC-sealed, employing filters and an overpressure system to keep contaminants out of the vehicle, and the infantry may fire their personal firearms from the vehicle without compromising its NBC integrity providing appropriate sealing measures are taken.

The engine is surrounded by a small airspace and a layer of foam plastic to help in dissipating heat. The exhaust pipes are wide and small, and have internal IR mixer boxes. The engine bay is also designed to accommodate larger engines when they become available.

The vehicle's major parts are designed for easy removal and replacement, and it is provided with a full set of tools for any operation including stripping out the engine and transmission. It also carries spare parts for all of the major failure-prone systems within it.

To prevent a single mine from taking out the entire vehicle, it is equipped with run-flat, tires and can run on 6 wheels if necessary.

The BDR-20 is equipped with air-conditioning systems for both the crew and the engine. It is also equipped with a full backup starting system in case of primary starter failure.

-------------------------------------------------------------

Export BDR-20 (Designated: BDR-20E revealed (13/7/05)

The BDR-20 AFV is now ready for production for any willing export customers.

Base Unit: $4,150,000

Armament: * AT-21 missile not carried; export variant mounts other gun-fired ATGMs including AT-10, AT-11 etc.*
-L132C/62 90mm, 62 calibre high pressure gun Add $85,000
-L133C/58 90mm, 58 calibre ETC gun Add $115,000
-TK-120C/49 120mm, 49 calibre gun Add $135,000
-TK-120E/49 120mm, 49 calibre ETC Add $165,000

Armour
Composite composition changed; weight slightly increased (.6 tonnes) but RHA values not compromised.

-( *All other systems are the same* )-
Space Union
12-07-2005, 15:25
Looks good, but a 125mm ETC Gun is an overkill for a reconnisance vehicle if you ask me. You should probably go with a 105mm ETC gun, though, I would go with 105mm conventional gun. Other than that, looks good :) If it goes for export, I'll buy this.
USSNA
12-07-2005, 15:39
Not exactly. This is designed to be able to take out NS tanks. DPUO and I have an IFV called the BMP-R and it carries a 115mm ETC.
Sturmscgultz
12-07-2005, 15:39
Preferrably id still buy my trusted recon vehicle the ENGESA "Cascavel" EE-9. And their MBT the EE-10 Osorio.
Neuvo Rica
12-07-2005, 16:25
Very well designed vehicle here, if it goes up for sale we shall have to order some.
USSNA
12-07-2005, 16:25
Preferrably id still buy my trusted recon vehicle the ENGESA "Cascavel" EE-9. And their MBT the EE-10 Osorio.

This coming from a person with only 5 posts. I've looked at your posts, you haven't bought nor designed anything. I've also checked the forums and found no EE-9.

Also, you should advertise in other peoples threads.
Space Union
12-07-2005, 16:49
Not exactly. This is designed to be able to take out NS tanks. DPUO and I have an IFV called the BMP-R and it carries a 115mm ETC.

But that will seriously decrease its mobility. You do want mobility. As since this is more of indirect threat against a MBT and not actually an MBT, then you would probably want this to go where MBTs can't. Just a thought :) Also is this going for export?
USSNA
12-07-2005, 19:30
Anyway, I dont feel like a small debate right now. Yes there will be an export version up soon.
Praetonia
12-07-2005, 19:37
How do you make a tank with a much larger gun and heavier armour than an Abrams which weighs half as much and goes twice as fast?
Dostanuot Loj
12-07-2005, 19:42
This coming from a person with only 5 posts. I've looked at your posts, you haven't bought nor designed anything. I've also checked the forums and found no EE-9.

Also, you should advertise in other peoples threads.


OOC: Dude, the EE-9 is a REAL vehicle prodoced by Brazil.
EE-9 (http://www.libyen-news.de/ee-9.jpg)

Interesting design and all, but a little too PMT for my tastes.
You might be better off actually using the Rooikat that you've used the picture for as a base, and making it more realistic.
USSNA
12-07-2005, 20:20
Crap I forgot to edit the weight. The armor system it uses has a much better protection to weight value. I will lower the armor a bit and up the weight.
Praetonia
12-07-2005, 20:36
Crap I forgot to edit the weight. The armor system it uses has a much better protection to weight value. I will lower the armor a bit and up the weight.
Better... but it still goes stupidly fast for how much it ought to weigh (taking into account how much heavier the ETC gun is compared to a regular gun, and your armour reductions, it should weigh about the same / slightly more than an Abrams). I'd probably go with what that person said earlier about a 105mm ETC, or maybe conventional or perhaps smaller but still ETC. This is a pretty good design for an MBT, but it isnt a reconaissance tank. If you want to kill tanks with a recce tank then your best bet is probably to use ATGMs.

[BTW: I used that pic for my first ever vehicle design back in April '04 =) *nostalgia*]
USSNA
13-07-2005, 00:57
okay I droped the speed to 55mph. And combat reconaissance is not as much recon as it is seek and destroy. Hit-and-Run tactics. In NS I dont think this would be a MBT, this is more of a but a tank destroyer/ medium wheeled tank. The gun can fire ATGMs but modern NS tanks have so many defenses against them that a gun would be more effective IMHO.

I dont think I need to reduce the armorment. Take a look at this vehicle: Link (http://www.fas.org/man/dod-101/sys/land/row/amx-10.htm)
it weighs in at only about 16 tonnes but can cary a 105mm cannon
Praetonia
13-07-2005, 10:28
I dont think I need to reduce the armorment. Take a look at this vehicle: Link (http://www.fas.org/man/dod-101/sys/land/row/amx-10.htm)
it weighs in at only about 16 tonnes but can cary a 105mm cannon
That's because it has a 105mm gun rather than a 125mm gun, and a conventional smoothbore over an ETC and it doesnt have the armour of an MBT. But whatever, the tank is looking much better now.
Dostanuot Loj
13-07-2005, 11:32
That's because it has a 105mm gun rather than a 125mm gun, and a conventional smoothbore over an ETC and it doesnt have the armour of an MBT. But whatever, the tank is looking much better now.

Let me add that it also uses a system known as Soft Recoil, whereas the gun travels a longer distance, with more hydraulic resistance, and a muzzle break. I don't think this would work with an ETC weapon because the forces would be so great on the hull that the syetem would have to be alot heavier then what is on the AMX-10RC.
Trust me, drop ETC (unless you want a 75mm ETC), a hyper velocity gun can do just as well without half the problems (Weight, maintenence, and all that stuff).
USSNA
13-07-2005, 13:29
I downed the armor again. I am considering to drop the gun to a 120mm ETC. But any lower and I fear it wont have the 1-2 shot mission kill power on NS Tanks.
Dostanuot Loj
13-07-2005, 13:38
I downed the armor again. I am considering to drop the gun to a 120mm ETC. But any lower and I fear it wont have the 1-2 shot mission kill power on NS Tanks.

You have to ask yourself the question, NS tanks of what era? So far you're going PMT as far as I'm concerned, in which case I don't care what you do.
But let me fill you in on a secret, projectile size means absolutly NOTHING to what it can penetrate. You want velocity and mass. If you design it right, you can easily pull off a 75mm gun that can compete in penetrating power to any 120-125mm weapon around.
The longer the barrel in relation to the diameter of the projectile, the higher the projectile's velocity (and accuracy). The larger you make the diameter of the shell, the longer the barrell has to be to pull off that kind of velocity, or the more power you need to stuff behind the projectile (but you will still reduce accuracy by having a shorter barrell). And if you choose to lengthen the barrell, you increase weight, if you choose to pu the power, you increase weight by alot.
Sorry for flooding your topic, but I like to think I'm trying to help.

EDIT: Just doing the math through, the 125mm you have in now has about the same range, and penetrating power of my 75mm hyper velocity weapon, same barrell length too, but at undoubtably many times the weight of my system.
USSNA
13-07-2005, 14:14
Where is this AFV PMT? I'm a MT nation that can go up to 2015-2020. Modern NS Tanks have armor values reaching past 2,000m RHA.

The thing has good armor (not tank armor), semi-big gun but not way too big IMO, a powerful engine to make up for the weight, and a descent speed for a wheeled vehicle. It weighs 45mt. I think it can hold the gun it has got.

Also, your hypervelocity gun has to have a heavy barrel or else it wont have any ammount of lifetime. This kinda ups the weight a bit.
Dostanuot Loj
13-07-2005, 14:22
Where is this AFV PMT? I'm a MT nation that can go up to 2015-2020. Modern NS Tanks have armor values reaching past 2,000m RHA.

The thing has good armor (not tank armor), semi-big gun but not way too big IMO, a powerful engine to make up for the weight, and a descent speed for a wheeled vehicle. It weighs 45mt. I think it can hold the gun it has got.

Also, your hypervelocity gun has to have a heavy barrel or else it wont have any ammount of lifetime. This kinda ups the weight a bit.

Well, it's 2005, and Modern Tech is now. 2015-2020 is PMT.
I agree, for PMT, this is very well ballanced, but I'm trying to give you advice on it.
A heavier barrell is still less then a much heavier barrell, heavier recoil system, heavier and more complex firing mechanism, and the heavier equipment needed to stabalize the gun itself. Add to that maintenence and cleaning, because an ETC gun simply has to be kept completely clean to be effective.
USSNA
13-07-2005, 15:52
Well, it's 2005, and Modern Tech is now. 2015-2020 is PMT.
I agree, for PMT, this is very well ballanced, but I'm trying to give you advice on it.
A heavier barrell is still less then a much heavier barrell, heavier recoil system, heavier and more complex firing mechanism, and the heavier equipment needed to stabalize the gun itself. Add to that maintenence and cleaning, because an ETC gun simply has to be kept completely clean to be effective.

not to start a discussion on tech, I've always done MT as present-2020 (This is the general standard for MT on NS), PMT as 2021-2100, and FT as anything above than. I think it now looks good. Now I need to price it right. Arg!
Space Union
13-07-2005, 17:41
I would suggest you lower the off-road speed. As wheeled vehicles although have better on-road than track vehicles, they don't have as great off-road speeds. I would suggest between 25-30 mph. Just a comment.

Also why don't you develop two variants. One is reconnisance and one is a tank destroyer. This is really an overkill as an reconnisance and you can get vehicles far cheaper that can do the same job. The reconnisance one would be tonned down on armenant.
USSNA
13-07-2005, 18:35
I think the off-road speed is sound. If has an exceptionaly large engine for it's weight which allows for a lot of hp and torque per tonne. I will lower it a bit anyway. SU I will offer it in the export version, but this thing isn't a pure recon vehicle. Combat Recon is actually seek-and-destroy.
Space Union
13-07-2005, 18:42
I think the off-road speed is sound. If has an exceptionaly large engine for it's weight which allows for a lot of hp and torque per tonne. I will lower it a bit anyway. SU I will offer it in the export version, but this thing isn't a pure recon vehicle. Combat Recon is actually seek-and-destroy.

Okay I guess its fine if you use it for Combat Recon. I'll be ordering this when it become available. It provides for an important niche in my military that I have no other vehicle to fill with. :)
USSNA
13-07-2005, 19:02
Export version up. Not sure if I got prices right though.
USSNA
13-07-2005, 21:38
Bumpido
Space Union
13-07-2005, 21:54
Looks good :) I suggest you up the price, though. Good NS tanks go no less than 10 million dollars and this is just below a tank. Maybe $4-7 million.
USSNA
15-07-2005, 02:17
Okay, I uped the prices. Also, *Bump*
USSNA
15-07-2005, 17:40
*Bump*
USSNA
15-07-2005, 23:37
.::BUMP::.
Space Union
16-07-2005, 00:00
To: USSNA
From: Chief-of-Military Manjit,
Capitalist Republic of Space Union
Subject: Order

We would like to buy 30,000 BDR-20 outfitted with the TK-120E/49 120mm, 49 calibre ETC gun. Including the cost of of the TK-120E/49 120mm, 49 calibre ETC into the base price, the total cost is $124.272 billion. Money will be sent upon confirmation. Thank You.

Signed,
Chief-of-Military Manjit
USSNA
16-07-2005, 00:33
To: Chief-of-Military Manjit
From: USSNA,
-RSI Representative
Subject: RE:Order

We regret to inform you that your calculations are off a slight bit. By our estimates the total cost would be $129.45 billion. If you still wish to go through with the order, we can deliver 625 units a month over a period of 4 years.

Signed,
USSNA,
RSI Representative
Space Union
16-07-2005, 00:37
To: USSNA
From: Chief-of-Military Manjit,
Capitalist Republic of Space Union
Subject: RE: RE: Order

We would like to give you are sincere apoligies for the mistake in the calculatons. We are have fired out accountant. Yes we will procede with the purchase. Thank You.

Signed,
Chief-of-Military Manjit

OOC: Man, I'm not on the ball today. Been making math mistakes all day. Bad luck day for me ;)
USSNA
16-07-2005, 00:48
To: Chief-of-Military Manjit,
From: USSNA,
-RSI Representative
Subject: Order Conformation

Your order has been accepted. Thank you for your business. Sent with this message is a catolog of our newest small arms (http://forums.jolt.co.uk/showthread.php?t=432236). While we dont offer any export on them yet, we feel that you, our valued customer, might show interest in the design.

Signed,
USSNA
-RSI Representative
Space Union
16-07-2005, 00:51
To: USSNA
From: Chief-of-Military Manjit,
Capitalist Republic of Space Union
Subject: Order

Your money has been transfered to your account.

We have payed special attention to your small arms. We find they are perfect for our armies needs. And it is good timing. We recently have asked for different companies to show us their small arms ware since we are mass buying to outfit our army. Once your small arms go on sale, we will make it top-priority from buying from your storefront. Thank You.

Signed,
Chief-of-Military Manjit
Neuvo Rica
16-07-2005, 14:44
Message:
To: USSNA
From: Neuvo Rica

We would like to purchase 2000 of the TK-120E variant of this remarkable AFV. We believe this should come to $8.63 Billion. Many thanks, we would also be much obliged if you could let us know when this order would be completed by.

If this vehicles performs well, we would also be interested in purchasing construction licensing for the L133C version. We would understand if you decline that offer. From,

Neuvo Rica.
USSNA
16-07-2005, 15:45
.::[Message]::.
To: Neuvo Rica
From: USSNA,
Subject: Order

We thank you for placing your order. Your calculations are correct and the bill comes to $8.63 billion. We can provide 5000 units a month over a period of 4 months.

Production rights for the L133C/58 BDR-20E would come out to $125 billion.

Again, we thank you for ording from Red Star Industries. Feel free to look at our newest small arms (http://forums.jolt.co.uk/showthread.php?t=432236). While they are not on sale as of yet, we feel that our customers might show future interest in the designs.

Signed,
USSNA
-RSI Representative
Neuvo Rica
16-07-2005, 18:16
Contact
--------
To:USSNA
From: Neuvo Rica

Thank you again for selling us these vehicles. We would like to purchase porduction rights, upon confirmation of this we will wire the money in two installments. We have put the introduction of 5 new assault carriers on hold for this. From,

Neuvo Rica.