Object 704

Object_704 (Stock)

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

ISU-152

Object 704

Object 268

IX

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

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

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

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

Compatible Equipment

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.

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Historical Gallery

• 

  Object 704, side view

• 

  Object 704, front view

• 

  Object 704 become ISU-152

Sources and External Links

External Links

• (Wikipedia)[1]. Scroll to: ISU-152 model 1945

USSR

Tank Destroyers

ja:Blitz:Object 704