T78

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  T78

USA | TD | Tier VI

Battle Tier

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Overview
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[Client Values; Actual values in

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Specifically, the mismatch in crew values caused by commander's 10% crew skill bonus. Outside of a crew of 1 commander only, 100% crew is a fiction. The client values, given for 100% crew, will normally be taken into battle with 110% crew skill members aside from specific functions, causing their actual performance to deviate from the expected client value. These differences are taken into account in tooltip boxes.

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2,800   Cost

670134 HP Hit Points

25.16/26.514.75/26.5 t Weight Limit

Crew

1. Commander (Radio Operator)
2. Gunner
3. Driver
4. Loader

Mobility

550550 hp Engine Power

55/14 km/h Speed Limit

3030 deg/s Traverse

21.8637.29 hp/t Power/Wt Ratio

YesYes Pivot

Armor

// mm Hull Armor

Armament

{{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING|| {{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING|| AP/APCR/HE {{#ifeq:ARMOR_PIERCING_CR|ARMOR_PIERCING|| {{#ifeq:HIGH_EXPLOSIVE|ARMOR_PIERCING|| AP/APCR/HE Shells

260/4400/180 260/4400/180 Shell Cost

240/240/320240/240/320 HP Damage

160/221/45160/221/45 mm Penetration

| |}} | |}} 7.23 r/m  ▲ Standard Gun Reload Times Nominal: 8.3 s 50% Crew: 10.28 s 75% Crew: 8.98 s 100% Crew: 7.96 s Rammer: 7.16 s Vents: 7.78 s Both: 7.01 s Both and BiA: 6.85 s Both and Max Crew %: 6.57 s See Crew, Consumables, or Equipment for more information. | |}} | |}} 7.23 r/m  ▲ Standard Gun Reload Times Nominal: 8.3 s 50% Crew: 10.28 s 75% Crew: 8.98 s 100% Crew: 7.96 s Rammer: 7.16 s Vents: 7.78 s Both: 7.01 s Both and BiA: 6.85 s Both and Max Crew %: 6.57 s See Crew, Consumables, or Equipment for more information. Rate of Fire

| |}} | |}} 1735.2 ▲ Standard Gun Using Shell Type 1 (240 Damage): Theoretical Damage Per Minute Nominal DPM: 1735.2 50% Crew: 1401.6 75% Crew: 1603.2 100% Crew: 1809.6 100% Crew Vents: 1850.4 Rammer: 2011.2 Both: 2056.8 Both and BiA: 2102.4 Both and Max Crew %: 2193.6 Advantageous Damage Per Minute First-shot DPM: 1975.2 50% Crew: 1641.6 75% Crew: 1843.2 100% Crew: 2049.6 100% Crew Rammer: 2251.2 Vents: 2090.4 Both: 2296.8 Both and BiA: 2342.4 Both and Max Crew %: 2433.6 See here, here, or here for more information. ▼ Standard Gun Using Shell Type 2 (240 Damage): Theoretical Damage Per Minute Nominal DPM: 1735.2 50% Crew: 1401.6 75% Crew: 1603.2 100% Crew: 1809.6 100% Crew Vents: 1850.4 Rammer: 2011.2 Both: 2056.8 Both and BiA: 2102.4 Both and Max Crew %: 2193.6 Advantageous Damage Per Minute First-shot DPM: 1975.2 50% Crew: 1641.6 75% Crew: 1843.2 100% Crew: 2049.6 100% Crew Rammer: 2251.2 Vents: 2090.4 Both: 2296.8 Both and BiA: 2342.4 Both and Max Crew %: 2433.6 See here, here, or here for more information. ▲ Standard Gun Using Shell Type 3 (320 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 2313.6 50% Crew: 1868.8 75% Crew: 2137.6 100% Crew: 2412.8 100% Crew Vents: 2467.2 Rammer: 2681.6 Both: 2742.4 Both and BiA: 2803.2 Both and Max Crew %: 2924.8 Advantageous Damage Per Minute First-shot DPM: 2633.6 50% Crew: 2188.8 75% Crew: 2457.6 100% Crew: 2732.8 100% Crew Rammer: 3001.6 Vents: 2787.2 Both: 3062.4 Both and BiA: 3123.2 Both and Max Crew %: 3244.8 See here, here, or here for more information. | |}} | |}} 1735.2 ▲ Standard Gun Using Shell Type 1 (240 Damage): Theoretical Damage Per Minute Nominal DPM: 1735.2 50% Crew: 1401.6 75% Crew: 1603.2 100% Crew: 1809.6 100% Crew Vents: 1850.4 Rammer: 2011.2 Both: 2056.8 Both and BiA: 2102.4 Both and Max Crew %: 2193.6 Advantageous Damage Per Minute First-shot DPM: 1975.2 50% Crew: 1641.6 75% Crew: 1843.2 100% Crew: 2049.6 100% Crew Rammer: 2251.2 Vents: 2090.4 Both: 2296.8 Both and BiA: 2342.4 Both and Max Crew %: 2433.6 See here, here, or here for more information. ▼ Standard Gun Using Shell Type 2 (240 Damage): Theoretical Damage Per Minute Nominal DPM: 1735.2 50% Crew: 1401.6 75% Crew: 1603.2 100% Crew: 1809.6 100% Crew Vents: 1850.4 Rammer: 2011.2 Both: 2056.8 Both and BiA: 2102.4 Both and Max Crew %: 2193.6 Advantageous Damage Per Minute First-shot DPM: 1975.2 50% Crew: 1641.6 75% Crew: 1843.2 100% Crew: 2049.6 100% Crew Rammer: 2251.2 Vents: 2090.4 Both: 2296.8 Both and BiA: 2342.4 Both and Max Crew %: 2433.6 See here, here, or here for more information. ▲ Standard Gun Using Shell Type 3 (320 Damage): With wholly penetrating hits Theoretical Damage Per Minute Nominal DPM: 2313.6 50% Crew: 1868.8 75% Crew: 2137.6 100% Crew: 2412.8 100% Crew Vents: 2467.2 Rammer: 2681.6 Both: 2742.4 Both and BiA: 2803.2 Both and Max Crew %: 2924.8 Advantageous Damage Per Minute First-shot DPM: 2633.6 50% Crew: 2188.8 75% Crew: 2457.6 100% Crew: 2732.8 100% Crew Rammer: 3001.6 Vents: 2787.2 Both: 3062.4 Both and BiA: 3123.2 Both and Max Crew %: 3244.8 See here, here, or here for more information. Damage Per Minute

| |}} 0.38 m  ▲ With 50% Crew: 0.471 m With 75% Crew: 0.411 m With 100% Crew: 0.364 m With BiA: 0.356 m With BiA and Vents: 0.349 m Maximum possible: 0.334 m For more details, see Crew | |}} 0.38 m  ▲ With 50% Crew: 0.471 m With 75% Crew: 0.411 m With 100% Crew: 0.364 m With BiA: 0.356 m With BiA and Vents: 0.349 m Maximum possible: 0.334 m For more details, see Crew Accuracy

| |}} 2 s  ▲ With 50% Crew: 2.478 s With 75% Crew: 2.163 s With 100% Crew: 1.918 s With GLD: 1.743 s With BiA: 1.875 s With BiA and Vents: 1.835 s With both and GLD: 1.668 s Maximum possible: 1.599 s For more details, see Crew or Equipment | |}} 2 s  ▲ With 50% Crew: 2.478 s With 75% Crew: 2.163 s With 100% Crew: 1.918 s With GLD: 1.743 s With BiA: 1.875 s With BiA and Vents: 1.835 s With both and GLD: 1.668 s Maximum possible: 1.599 s For more details, see Crew or Equipment Aim time

2020 deg/s Gun Traverse Speed

360° Gun Arc

-10°/+20°-10°/+20° Elevation Arc

4747 rounds Ammo Capacity

General

2020 % Chance of Fire

370 m  ▲ With 50% Crew: 290.7 m With 75% Crew: 330.4 m With 100% Crew: 370 m With Recon and Situational Awareness: 388.7 m With Coated Optics: 407 m With Binocular Telescope: 462.5 m Maximum possible: 529.7 m For more details, see Skills or Equipment 370 m  ▲ With 50% Crew: 290.7 m With 75% Crew: 330.4 m With 100% Crew: 370 m With Recon and Situational Awareness: 388.7 m With Coated Optics: 407 m With Binocular Telescope: 462.5 m Maximum possible: 529.7 m For more details, see Skills or Equipment View Range

| |}} 750 m  ▲ With 50% Crew: 589.3 m With 75% Crew: 669.7 m With 100% Crew: 750 m With 100% Signal Boost: 900 m When affected by 100% Relaying: 825 m Maximum possible: 1079.2 m For more details, see Skills or Equipment | |}} 750 m  ▲ With 50% Crew: 589.3 m With 75% Crew: 669.7 m With 100% Crew: 750 m With 100% Signal Boost: 900 m When affected by 100% Relaying: 825 m Maximum possible: 1079.2 m For more details, see Skills or Equipment Signal Range

Values are Stock - click for TopValues are Top - click for Stock

T78

VI

2800

The T78 is an American tier 6 premium tank destroyer.

This vehicle project, using the chassis of the T24 light tank, was proposed in July 1943. The vehicle was to feature the 90 mm gun from the M36 tank destroyer. The U.S. Armed Forces requested the completion of trials and improvements to the chassis before converting the vehicle to a tank destroyer, but the program was discontinued in August 1943, in spite of successful trials by the T24 tank. No prototypes were built.

Modules / Available Equipment and Consumables

Modules

Guns

Tier	Gun	Penetration (mm)	Damage (HP)	Rate of fire (rounds/minute)	Dispersion (m/100m)	Aiming time (s)		Weight (kg)	Price ()
VII	90mm Gun M3	160/221/45	240/240/320	7.23	0.38	2		2050	81000

Engines

Tier	Engine	Engine Power (hp)	Chance of Fire on Impact (%)		Weight (kg)	Price ()
VI	Continental R-975C4	550	20		550	25000

Suspensions

Tier	Suspension	Load Limit (т)	Traverse Speed (gr/sec)	Rmin		Weight (kg)	Price ()
VI	T78	26.5	30	0		7000	12000

Radios

Tier	Radio	Signal Range (m)		Weight (kg)	Price ()
VI	SCR 610	750		100	24600

Compatible Equipment

                 

Compatible Consumables

                      

Player Opinion

Pros and Cons

Pros:

• Respectable alpha damage, good ammo capacity
• Good American gun depression: -10 degrees
• Decent top speed and acceleration
• Long radio range, allows it to stay in second or even third line of combat

Cons:

• Lower penetration on its APCR rounds than non-premium 90mm guns
• Poor gun handling for an American TD: longer aim time, worse accuracy/dispersion values
• Mediocre DPM, only slightly better than Hellcat
• Armor provides little protection, will take heavy damage from HE shells
• Crew layout only matches T25 AT, T28, and T95

Performance

Like many American machines, the T78 is generally well rounded, yet some of its most important characteristics pale in comparison to some of its more popular peers. It can be thought of as something of a mid-point between the M18 Hellcat and the M36 Jackson in terms of performance and should be played as such.

The T78's main focus is its 90mm M3 cannon, a familiar sight for many mid-tier American tanks. The gun provides a respectable 240-HP alpha for its tier, yet is let down by its rate of fire--above that of the Hellcat, but below the Jackson's. The T78 has a longer aim time than either of the non-premium TDs and is less accurate as well. It also suffers from having 22 less penetration on its APCR round versus the Jackson or Hellcat, a penetration loss of about 10%. This means it will struggle more against heavily armored machines, especially Tier 8s. Supposedly, this is the same cannon that is used on the M6 Heavy tank. Yet the gun on the M6 has 243 penetration for it's premium round.

It does have the benefit of a decent speed and acceleration (though not as zippy as the Hellcat), decent camo (though again, not as good as a Hellcat) and a higher HP of 600. Do not think that this means you can afford to trade shots; most of the opponents a T78 can face will have the ability to kill it in just 2-3 hits. You are at risk of being one-shotted by artillery and 152mm derpguns carried by equal-tier beasts such as the KV-2 and O-I. It is possible to be be one-shotted by a high damage roll from a 122mm gun firing a High Explosive shell. Therefore, avoid direct confrontation with enemy heavies if at all possible.

Use your compact size and decent mobility to find a hull-down position overlooking vital choke points. You will need to aim in for longer than your non-premium American peers, so take your time and pick targets carefully. Though you can punish most heavies from side angles, don't count on your APCR providing the penetration needed to punch through them frontally. Instead, destroy weakened opponents before they retreat and don't be afraid to bully soft-skinned targets such as supporting medium tanks. Stay mobile, stay hidden, and make the most of your respectable ammo count (on par with the Jackson).

Early Research

As a premium tank, the T78 is elite in its stock configuration.

Suggested Equipment

     

Gallery

USA

Tank Destroyers

Premium tanks

ja:Tank:A123 T78