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Object 704

Object 704

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Object_704 (Stock)

Blitz_Object_704_screen.png
Totals
3660000 Cost
1500 HPDurability
44.75 / 50.9 Weight
Crew
  1. Commander
  2. Radio Operator
  3. Gunner
  4. Driver
  5. Loader
  6. Loader
Armor
120/90/60Hull Armor(front/sides/rear, mm)
0/0/0Turret Armor(front/sides/rear, mm)
Maneuver
650 h.p.Engine Power
37 km/hTop Speed / Reverse Speed
22 deg/sTraverse Speed
Firepower
640 damage
135 mmAverage Penetration
15.2614698089527 Time for Complete Loading
26 deg/sGun Traverse Speed
Communication
250 mView Range
500 mSignal Range
IX
Object 704
3660000
Developed in 1945 on the basis of the IS-2 and IS-3 vehicles, under the supervision of Joseph Kotin. One of the distinctive features was the slope angle of armor plates. Passed trials successfully, but never entered service.

The Object 704 is a Soviet tier 9 tank destroyer.

A nice upgrade from the ISU-152, the Object 704 has good sloped armor, improved mobility, and an improved BL-10 cannon that fires faster, isn't quite as inaccurate, and takes less time to aim. Though it is, to all intents and purposes, the same gun as on the ISU-152, it still has very high penetration and alpha damage for its tier.

Gun

Gun

Level Gun Average Penetration (mm) Rate of Fire Dispersion at 100 m Aiming Time Experience Weight (t)
VII 152 mm ML-20SM mod. 1944 135/250/86 640/640/960 3.93 0.46 2.5 0 2500
X 152 mm BL-10 286/329/90 640/640/960 4.28 0.39 2.5 75000 6500
Engine

Engine

Level Engine Engine Power (h.p.) Chance of Fire on Impact Experience Weight (t)
VIII V-11 650 15 0 750
IX V-2-54IS 700 12 32500 700

Level Suspension Load Limit Traverse Speed (deg/s) Experience Weight (t)
VIII Object 704 50.9 22 0 10000
IX Object 704M 50.9 26 29180 10000
Radio

Radio

Level Radio Signal Range (m) Experience Weight (t)
VII _10RK 500 0 100


Compatible Equipment

Heavy Spall Liner
Camouflage Net
Fill Tanks with CO2
Coated Optics
Enhanced Gun Laying Drive
Enhanced Torsion Bars 5+ t Class
Cyclone Filter
Improved Ventilation Class 3
Large-Сaliber Tank Gun Rammer
Binocular Telescope
Toolbox
"Wet" Ammo Rack Class 2

Compatible Consumables


Player Opinion

Pros and Cons

Pros:


  • Uses the same gun as the ISU-152 but with better aim time and accuracy.
  • To add to the above, it still has amazing alpha and penetration.
  • Good gun arc (3 degrees better on each side than the ISU.)
  • Great armor; while the base armor value is low, half the front of the tank is covered by spaced armor, and the other half is
  • Has almost 60% more health than the ISU.


Cons:


  • Long reload.
  • Long aim time.
  • Bigger profile than the ISU.
  • Terrible traverse speed.
  • Worse speed limit than the ISU.


Performance

The Object 704 is, for the most part, a direct upgrade to the ISU. It uses mostly the same modules (2 of the ISU's radios, the same top engine, and the BL-10) and plays very similarly. Everything you learned from the ISU you will make use of in the 704, and you get some pros and lose some cons.

The best upgrade you get is your gun. Your accuracy goes up by 0.02 and your aim time is lowered by a whooping 0.5 seconds, which makes hitting and picking targets MUCH easier than in the ISU. Secondly, the armor is a surprising upgrade. On paper, it only has 120mm of armor, but it is very well sloped. The sides of the front are also spaced armor, and landing a shot there does no damage. As an even bigger plus, your gun mantlet is EVEN BIGGER than on the ISU, making half of this tank's front effectively immune to damage. Further more, if the tank gets into a side-scraping position, to your surprise it will bounce many shots, even premium shels from tanks like the E-100. This happens because if you look at the Object 704 closely, you will see that it's sides are highly angled, the tanks sides were designed this way for the ricochets.

However, you trade some things from the ISU. Firstly, the tank is wider to each side and is more prone to getting hit. You also lose 4 km/h top speed, which effectively makes the tank slower than the ISU.

Other than that, it is very much an upgraded ISU, and is a good tank destroyer for its tier.


Early Research

  • You should have researched the BL-10 from the ISU-152 so put it on right away, so you don't need to play with the inaccurate derp cannon. You should also be able to add the better engine and the 12RT radio.
  • This leaves only the tracks to research because with stock tracks turning is very sluggish.


Historical Info

Object 704

One prototype, developed in 1945, used elements of the IS-2 and IS-3 tanks. The overall height of the vehicle was reduced to 2240 mm, which was compensated with an increased width of the superstructure. The factory designation was Object 704 (Объект 704). It was armed with the 152.4 mm ML-20SM model 1944 (МЛ-20СМ обр. 1944 г.) gun-howitzer, with a barrel length of over 4.5 meters (29.6 calibers) and no muzzle brake, which further increased the firepower of the gun.

It had a maximum range of 13,000 meters. The self-propelled gun carried 20 rounds of two piece (shell and charge) armor-piercing and high explosive ammunition. The armor-piercing round, weighing 48.78 kg, had a muzzle velocity of 655 m/s. The rate of fire was 1-2 round/min. The ISU-152 model 1945 had four hatches at the superstructure roof and one emergency hatch at the bottom of the hull behind the driver's seat, which had an armored cover.

The self-propelled gun carried two external fuel tanks (90 liters each) not connected to the supply system. The secondary armament of the fighting vehicle consisted of two 12.7 x 108 mm DShK machine guns, one anti-aircraft and one co-axial.

The protection was increased by placing thicker armor at more radical angles. In the area of the gun, where the mantlet combined with the hull front behind it and the housing of the recoil mechanism, the armor thickness was 320 mm. The ISU-152 model 1945 (ИСУ-152 обр. 1945 г.) was the best protected of all experimental or production Soviet self-propelled guns of the Second World War. However, the radical incline of the superstructure walls combined with the increased recoil of the gun, due to the lack of a muzzle brake, significantly complicated the work of the crew, and for this reason mainly wasn't adopted. Today, the self-propelled gun is exhibited at the Kubinka Tank Museum.


Historical Gallery

Sources and External Links

USSR
Light Tanks IMS-1 IIBT-2 IIT-26 IITetrarch IIIBT-7 IIIBT-SV IIILTP IIIM3 Light IIIT-127 IIIT-46 IVA-20 IVValentine II
Medium Tanks IVA-32 IVT-28 VMatilda IV VT-34 VIT-34-85 VIT-34-85 Victory VIIKV-13 VIIT-34-85 Rudy VIIT-43 VIIIT-44 IXT-54 XObject 140 XT-62A
Heavy Tanks VChurchill III VKV-220 Beta-Test VKV-1 VIKV-1S VIKV-2 VIT-150 VIIIS VIIKV-3 VIIIIS-3 VIIIIS-6 VIIIIS-6 Fearless VIIIKV-5 VIIIKV-4 IXIS-8 IXST-I XIS-4 XIS-7
Tank Destroyers IIAT-1 IIISU-76 IVSU-85B VSU-85 VSU-85I VISU-100 VISU-100Y VIISU-152 VIISU-100M1 VIISU-122-44 VIIIISU-152 VIIISU-101 IXObject 704 IXSU-122-54 XObject 263 XObject 268
Tank Destroyers
USA IIT18 IIIT82 IVM8A1 IVT40 VM10 Wolverine VT49 VIM18 Hellcat VIM36 Jackson VIIT25/2 VIIT25 AT VIIIT28 VIIIT28 Prototype IXT30 IXT95 XT110E3 XT110E4
UK IIUniversal Carrier 2-pdr IIIValentine AT IVAlecto VAngry Connor VAT 2 VIChurchill Gun Carrier VIAT 8 VIIAT 15A VIIAT 7 VIIIAT 15 IXTortoise XFV215b (183)
Germany IIPanzerjäger I IIIMarder II IVHetzer VStuG III Ausf. G VIDicker Max VIJagdpanzer IV VIIE 25 VIIE 25 "#1" VIIJagdpanther VIIIFerdinand VIIIJagdpanther II VIII8,8 cm Pak 43 Jagdtiger VIIISnowstorm Jagdtiger 8.8 IXJagdtiger XJagdpanzer E 100
USSR IIAT-1 IIISU-76 IVSU-85B VSU-85 VSU-85I VISU-100 VISU-100Y VIISU-152 VIISU-100M1 VIISU-122-44 VIIIISU-152 VIIISU-101 IXObject 704 IXSU-122-54 XObject 263 XObject 268
France
China
Japan
Czechoslovakia
Sweden
ko:Blitz:Object 704