Rocket Launcher T34 Calliope

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Arcade Realistic Simulator

Arcade Realistic Simulator

Arcade Realistic Simulator

General info

T34 Calliope in the Garage.

The T34 Calliope is a Rank III American medium tank with the battle rating of 4.3. It was introduced with Update 1.49 "Weapons of Victory". Though using the base model of a M4 Sherman, it has a 60 round rocket rack sitting above the turret that fires 114 mm rockets at a general location. While giving the team a good edge in firepower, the rocket rack also presents a large weak point that can be targeted with a high-explosive round for an ammo-rack kill.

The main purpose, usage and tactics recommendations

General play style

The T34 Calliope is effective as a close quarters brawler. It should aim to start engagements suddenly and spam rockets primarily at an enemy's main cannon and roof armour. It is a small chance that this will immediately disable or knock out an enemy vehicle. This is usually enough to either finish off the target with rockets or by using the 75mm cannon.

Vehicle characteristics

This vehicle has guide rails for 114 mm M8 rockets mounted on a M4 tank turret. However, the additional rocket payload makes fire from the main cannon impossible. All rockets have to be used before the 75mm can be fired. The coaxial LMG is not affected by this.

The rocket armaments greatest disadvantage is the innaccuracy, despite its finstabilized tail. There is no guidance system, thus every barrage needs to be fired in an arc, greatly increasing the warhead dispersion. Furthermore the stabilizing fins showed little impact in lateral guidance when fired from the ground, in comparison with their aerial version.

Another drawback is the small warhead with only a 1.9 kg of high explosive filler. Adequate against barricades and entrenchments, but lacking in stopping power against heavy armoured vehicles such as tanks and pillboxes. Additionally, as with any other ground vehicle firing unguided rockets, the weapon will present a very loud but distinct firing signature, allowing enemies to identify the type of vehicle as well as its location on the map. The distinct smoke trail from fired rockets can also reveal the position of the vehicle. However, the higher fire rate of the M8 rockets allows for multiple volleys of rockets to be fired quickly at a target. The ensueing flash, fire and smoke effects from constant barrage against a target can temporarily blind targets and in some cases can cause sudden software performance dips such as drops in frame rate due to the smoke effects, hindering enemy targeting.

This rocket launcher system allowed fire not only from a defilade position but also from point-blank range. So, once all the rockets have been fired, the Calliope may continue to fight as a standard tank.

Drawbacks are the inaccuracy of the volleys due arc fire and the lack of anti-tank damage. The warheads are pure HE, thus they need to hit thinly armoured areas, like rooftops and armour hulls above the tracks to be able to deal any sort of damage.

Tactics

Specific enemies worth noting

Counter-tactics

Pros and cons

Pros:

  • Armament:
    • Quick-firing 75 mm gun with adequate shell options.
    • Is now equipped with 60 rockets, a salvo can blind or even cripple, if not kill other enemy tanks.
  • Armour:
    • Reasonably good frontal protection, can work nicely when in downtiers.
    • Turret is quite strong.

Cons:

  • Size:
    • The Sherman is already a pretty large vehicle, the addition of the rockets makes the Calliope stick out like a sore thumb.
  • Armament:
    • The 75 mm gun begins to lack the penetration to go up against tougher foes.
    • Does not get access to the T45 APCR shot.
    • Rockets are inaccurate past ~100 meters.
    • Rockets act as a massive (and unarmoured) ammunition rack.
    • Rockets only have 29 mm of penetration.
    • Loses access to the .50 caliber M2 machine gun.
    • The distinctive firing sound of the rockets can lure unwanted enemies to your position.
  • Armour:
    • Overall armour protection is no longer effective against tougher foes, especially against the German long 75 mm gun.
    • The extra 25.4 mm side plating indicates the location of ammunition racks (can be resolved by taking less than 23 cannon rounds).
  • Price:
    • The Calliope is the most expensive premium vehicle in War Thunder, clocking in at an astounding 9,740 Golden Eagles.

Specifications

Arcade Realistic Simulator

Arcade Realistic Simulator

Arcade Realistic Simulator

Armaments

1 x 75 mm Gun M3 (97 rounds)
1 x 7.62 mm M1919A4 machine gun (3,000 rounds)
60 x 114 mm M8 rockets (reloadable)

Main armament

1 x 75 mm Gun M3
  • Ammunition Capacity: 97 Shells
  • Gun Depression: -10°
  • Gun Elevation: 25°
  • Turret Rotation Speed: 14.3°/s (Stock), 19.8°/s (Upgraded), 24.0°/s (Prior + Full Crew), 26.6°/s (Prior + Expert Qualif.), 28.2°/s (Prior + Ace Qualif.)
  • Reloading Rate: 6.5s (Stock), 5.75s (Full Crew), 5.3s (Prior + Expert Qualif.), 5.0s (Prior + Ace Qualif.)
1 x 75 mm Gun M3
  • Ammunition Capacity: 97 Shells
  • Gun Depression: -10°
  • Gun Elevation: 25°
  • Turret Rotation Speed: 14.3°/s (Stock), 16.8°/s (Upgraded), 20.4°/s (Prior + Full Crew), 22.56°/s (Prior + Expert Qualif.), 24.0°/s (Prior + Ace Qualif.)
  • Reloading Rate: 6.5s (Stock), 5.75s (Full Crew), 5.3s (Prior + Expert Qualif.), 5.0s (Prior + Ace Qualif.)
1 x 75 mm Gun M3
  • Ammunition Capacity: 97 Shells
  • Gun Depression: -10°
  • Gun Elevation: 25°
  • Turret Rotation Speed: 14.3°/s (Stock), 16.8°/s (Upgraded), 20.4°/s (Prior + Full Crew), 22.56°/s (Prior + Expert Qualif.), 24.0°/s (Prior + Ace Qualif.)
  • Reloading Rate: 6.5s (Stock), 5.75s (Full Crew), 5.3s (Prior + Expert Qualif.), 5.0s (Prior + Ace Qualif.)
Ammunition
Ammunition Penetration in mm @ 90° Type of
warhead
Velocity
in m/s
Projectile
Mass in kg
Fuse delay in m: Fuse sensitivity in mm: Explosive Mass in
TNT equivalent
in g:
Normalization At 30° from horizontal: Ricochet:
10m 100m 500m 1000m 1500m 2000m 0% 50% 100%
M72 shot 110 109 92 76 62 51 AP 619 6.3 N/A N/A N/A -1° 47° 90° 95°
M48 shell 10 10 10 10 10 10 HE 463 6.3 0.4 0.5 666 +0° 79° 80° 81°
M61 shot 90 88 81 73 65 59 APCBC 618 6.8 1.2 20 63.7 +4° 48° 63° 71°
Ammunition Type of
warhead
Velocity
in m/s
Projectile
Mass in kg
Screen radius
in m
Screen time
in s
Screen hold time
in s:
Explosive Mass in
TNT equivalent
in g:
M89 Smoke 259 3 13 5 20 50
Ammo racks
Ammo racks of the M4 Sherman.
Full
ammo
1st
rack empty
2nd
rack empty
3rd
rack empty
4th
rack empty
5th
rack empty
6th
rack empty
7th
rack empty
8th
rack empty
Recommendations Notes Visual
discrepancy
97 85 (+12) 73 (+24) 61 (+36) 49 (+48) 37 (+60) 25 (+72) 13 (+84) (+96) Turret empty: 49 (+48) Rocket launcher racks can be easily detonated
by high-explosives when there are rockets.
Yes

Secondary armament

1 x 7.62 mm M1919A4 machine gun (coaxial)

Tertiary armament

60 x 114 mm M8 rockets

Shrapnel war head: 1.9 kg TNT
Reload time: 60 seconds

Crew

  • Commander
  • Gunner
  • Loader
  • Driver
  • Assistant Driver

Total: 5 Crew members

Armour

Armour type:

  • Rolled homogeneous armour (Front, Side, Rear, Hull roof)
  • Cast homogeneous armour (Turret, Transmission area)
Armour Front (Slope angle) Sides Rear Roof
Hull 50.8 mm (56°) Front glacis
50.8 mm (12-56°) Transmission area
50.8 (13-20°) + 25.4 mm (35°) Protruding hatches
38.1 mm
38.1 + 25.4 mm Appliqué addition
38.1 mm (0-10°) Top
25.4 mm (33-64°) Bottom
19.5 mm Sides
12.7 mm Engine deck and center
Turret 76.2-88.9 mm (4-67°) Turret front
50.8 + 88.9 mm Gun mantlet
50.8 mm (0-68°) 50.8 mm (2-66°) 25.4 mm
Armour Sides Roof
Cupola 50.8 mm 25.4 mm

Notes:

  • Suspension wheels are 15 mm thick, bogies are 10 mm thick, and tracks are 17 mm thick.
  • Front armour has two protruding areas for driver and co-driver hatches. These are weak points as they present a flat armour surface.
  • Belly armour is 12.7 mm thick.

Engine & mobility

Weight: 30.6 ton

Max Speed: 42 km/h
Stock

  • Engine Power: 620 hp @ 2400 rpm
  • Power-to-Weight Ratio: 20.26 hp/ton
  • Maximum Inclination: 40°

Upgraded

  • Engine Power: 763 hp @ 2400 rpm
  • Power-to-Weight Ratio: 24.93 hp/ton
  • Maximum Inclination: 43°
Weight: 30.6 ton

Max Speed: 38 km/h
Stock

  • Engine Power: 354 hp @ 2400 rpm
  • Power-to-Weight Ratio: 11.57 hp/ton
  • Maximum Inclination: 40°

Upgraded

  • Engine Power: 400 hp @ 2400 rpm
  • Power-to-Weight Ratio: 13.07 hp/ton
  • Maximum Inclination: 41°
Weight: 30.6 ton

Max Speed: 38 km/h
Stock

  • Engine Power: 354 hp @ 2400 rpm
  • Power-to-Weight Ratio: 11.57 hp/ton
  • Maximum Inclination: 40°

Upgraded

  • Engine Power: 400 hp @ 2400 rpm
  • Power-to-Weight Ratio: 13.07 hp/ton
  • Maximum Inclination: 41°

Modules and improvements

Tier Mobility Protection Firepower
I Tracks tank module.jpg Parts tank module.jpg Horizontaldrive tank module.jpg
II Suspension tank module.jpg Brakesystem tank module.jpg FPE tank module.jpg Adjustmentoffire tank module.jpg APCBC M61 tank module.jpg
III Filters tank module.jpg Crewreplenishment tank module.jpg Elevationmechanism tank module.jpg
IV Transmission tank module.jpg Engine tank module.jpg Artillerysupport tank module.jpg Smoke M89 tank module.jpg Smokegrenade tank module.jpg

Recommendation:
As a premium tank all upgrades are already unlocked. The "Mark of disticntion" can be earned, allowing for four decals without using a premium account.

History of creation and combat usage

Development

Midway into World War II in 1943, the Western Allies realized that unlike the Soviet Union, they did not have any form of a "multiple rocket launcher system" that the Soviets had with their Katyusha Launchers trucks. The idea of rocket launchers isn't new at this period, they present some advantage over the standard mortar or howitzer. The rocket launcher can launch massive amounts of high-explosive ammunition at a longer distance at a shorter time with a greater psychological impact than normal artillery, at the price of a longer reload time and less accuracy. The Soviets showed the best utilization of this weapon with their Katyushas, having a whole bunch of them fire at a designated target, minimizing accuracy loss with a full area saturation of fire. The effectiveness of this system prompted the Allies to start producing some form of multiple rocket launcher system as well.

In 1943, the project began in United States and the design was to use the current M4 Sherman tanks in service to mount the rocket launchers to bring into combat. The design, developed by Victor Hawkins, had a rocket mount on the Sherman turret with sixty launch tubes, all made to fire the 4.5 in. M8 rockets. The project gave the experimental tank design the designation T34, and the troops adopted the name "Calliope", which was the name of a steam organ and has a similar look.

Combat usage

These rocket launcher tanks were sent to France in 1944, although many never saw combat for various reasons. During its development, three different variants were made. The original T34 had 60 tubes for the 4.5 in. rockets with 36 fixed tubes on top and 24 on the bottom able to be jettisoned (except on the M4A1 Sherman variant). The second, T34E1, has the 24 jettisonable tubes replaced by 28 tubes, though the total tubes was still 60. The T34E2 had the rocket caliber increased from 4.5 in. to 7.2 in. with the same 60 tubes. This saw combat during the 1944-1945 time span.

However, the modifications of the Shermans seem unnecessary as the war progressed, new development had the rocket launcher system mated to trucks, armoured chassis, and jeeps so the tanks could be left alone to do its purpose. But when the Calliope saw service in the Pacific and Europe, its performance was moderately successful. The T34 was replaced by the T40 "Whiz Bang" Sherman, which was a Sherman with a tank-mounted multiple rocket launcher system like the T34, but only saw combat in the last few months of the war and had the 7.2 in. rockets.

Screenshots and fan art

Camouflages & skins

Skins and camouflages for the T34 Calliope from live.warthunder.com

Images

The T34 "Calliope" firing a salvo of 4.5 inch rockets.

Videos

WW2 News Reel:
"1944 M4 T34 Calliope"





Additional information (links)

[Devblog] РСЗО T34 Sherman Calliope

References


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us_m4_sherman_calliope.png

Icon-country-usa.png T34 Calliope
Nation USA
Type Medium tank
Rank 3
Battle Rating
4.3
4.3
4.3

   Metric✓       Imperial   

   Metric       Imperial✓   

Characteristics
Weight
30,600 kg
67,461 lb
Number of Crew 5
Hull armour thickness
50.8/38.1/38.1/12.7 mm
2.0/1.5/1.5/0.5 inches
Statistics
Engine power (stock)
620 hp
354 hp
354 hp
Engine power (upgraded)
763 hp
400 hp
400 hp
HP/ton ratio (stock)
20.26
20.59
11.57
11.75
11.57
11.75
HP/ton ratio (Upgraded)
24.93
25.33
13.07
13.28
13.07
13.28
Max speed
42 km/h
26.2 mph
38 km/h
23.6 mph
38 km/h
23.6 mph
Main Weapon
1 x 75 mm M3 Cannon
Ammo stowage 97 rounds
Vertical guidance -10°/25°
Secondary Weapon
1 x 7.62 mm M1919A4 Machine gun
Ammo stowage 3,000 rounds
Mount Coaxial
Tertiary Weapon
60 x 114 mm M8 Rocket
Vertical guidance -7°/16°
Economy
Required RP N/A
Vehicle cost 9,740 GE
Crew training cost 10,000 SL
Max repair cost*
2,480 SL
2,010 SL
1,650 SL
Free repair time (Stock)
20h 23m
1d 06h
1d 05h
Free repair time (Upgraded)
6h 47m
10h 16m
9h 45m
Warning: this sidebar is a WIP, and can be incorrect. Last updated 1.77.2.191.