Difference between revisions of "T77E1"

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{{Specs-Card
 
{{Specs-Card
 
|code=us_t77e1
 
|code=us_t77e1
−
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg|ArtImage_{{PAGENAME}}.png}}
+
|images={{Specs-Card-Image|GarageImage_{{PAGENAME}}.jpg}}
 
}}
 
}}
  
 
== Description ==
 
== Description ==
 
<!-- ''In the description, the first part should be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
 
<!-- ''In the description, the first part should be about the history of the creation and combat usage of the vehicle, as well as its key features. In the second part, tell the reader about the ground vehicle in the game. Insert a screenshot of the vehicle, so that if the novice player does not remember the vehicle by name, he will immediately understand what kind of vehicle the article is talking about.'' -->
−
The '''T77E1 Multiple Gun Motor Carriage (MGMC)''' is an American self-propelled anti-aircraft gun mounted on the [[M24|M24 light tank]] chassis used by the U.S. Army during World War II. It was armed with six 12.7 mm M2HB machine guns. This anti-aircraft vehicle began development in July 1943 using the hull of the M24, which was still in development and designated as the T24. This SPAA was designated as the '''Carriage, Motor, Multiple, Cal. .50 Gun, T77''', and was armed with four 12.7 mm machine guns. This design was approved for a mock-up by the end of 1943. Though after inspecting this mock-up, officials requested that an additional two machine guns be added to the vehicle. The first T77 was completed in July 1945, and a second prototype was also made and designated as the T77E1. Though after these two prototypes were built, World War II had already ended and the T77 never saw active service and were soon presumably scrapped.
+
The '''T77E1 Multiple Gun Motor Carriage (MGMC)''' is an American self-propelled anti-aircraft gun mounted on the [[M24|M24 light tank]] chassis and armed with six 12.7 mm M2HB machine guns. It development in July 1943 using the hull of the M24, which was still in development and designated as the T24. This SPAA was designated as the '''Carriage, Motor, Multiple, Cal. .50 Gun, T77''', and was armed with four 12.7 mm machine guns. The design was approved for a mock-up by the end of 1943. After inspecting this mock-up, officials requested that two additional machine guns be added to the vehicle. The first T77 was completed in July 1945, and a second prototype was also made and designated as the T77E1. However, by this time World War II had already ended. The T77 never saw active service and the two prototypes were presumably soon scrapped.
  
−
The '''T77E1''' was introduced in [[Update "Firebirds"]], and as it's based off the M24's light tank hull, it is a very light and mobile vehicle. The .50 cal armament can potentially be useful against armored targets on the ground, though it is not ideal to engage with tanks at its battle rating and its thin, though angled armor. With some good precision, you can easily be able to take down enemy aircraft with your numerous amount of machine guns this vehicle is equipped with.
+
The '''T77E1''' was introduced in [[Update "Firebirds"]], and as it is based off the M24's light tank hull, it is a very light and mobile vehicle. The .50 cal armament can potentially be useful against armoured targets on the ground, though it is not ideal to engage with tanks at its battle rating and its thin, though angled, armour. With some good precision, you can easily take down enemy aircraft with your numerous machine guns.
  
 
== General info ==
 
== General info ==
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* Suspension wheels and tracks are 15 mm thick.
 
* Suspension wheels and tracks are 15 mm thick.
  
−
The T77E1 uses the M24's chassis, which is lightly armored all around and can be potentially susceptible to enemy fire if used closer into the battlefield. Though this vehicle is armored on top, it is still vulnerable to planes strafing and close air support, especially planes with autocannons or bombs.
+
The T77E1 uses the M24's chassis, which is lightly armoured all around and can be potentially susceptible to enemy fire if used closer into the battlefield. Though this vehicle is armoured on top, it is still vulnerable to planes strafing and close air support, especially planes with autocannons or bombs.
  
 
=== Mobility ===
 
=== Mobility ===
−
{{Specs-Tank-Mobility}}  
+
{{Specs-Tank-Mobility}}
 
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
 
<!-- ''Write about the mobility of the ground vehicle. Estimate the specific power and manoeuvrability, as well as the maximum speed forwards and backwards.'' -->
  
−
{{tankMobility|weight= 18.4|AoAweight= 0|abForwardSpeed= 38|abReverseSpeed= 16|abMinHp= 420|abMaxHp= 488.8|rbForwardSpeed= 35|rbReverseSpeed= 14.4|rbMinHp= 262|rbMaxHp= 286.8}}
+
{{tankMobility|abMinHp=420|rbMinHp=262}}
  
−
As is the M24, the T77E1 is pretty fast and mobile. Though the acceleration can be slow, the top speed of this vehicle is high, as well as its reverse speed, both of which may allow you to pull out of a rough situation very quickly and easily. Though using this tank against ground targets might not be the best decision, if you do find yourself in a fight with one, flanking enemies and using this vehicle's mobility to its advantage may help you to get the best outcome in a battle.
+
Like the M24, the T77E1 is pretty fast and mobile. Though the acceleration can be slow, the top speed of this vehicle is high, as well as its reverse speed, both of which may allow you to pull out of a rough situation very quickly and easily. While using this tank against ground targets might not be the best decision, if you do find yourself in a fight with one, flanking enemies and using this vehicle's mobility to its advantage may help you to get the best outcome in a battle.
  
 
=== Modifications and economy ===
 
=== Modifications and economy ===
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=== Main armament ===
 
=== Main armament ===
 
{{Specs-Tank-Weapon|1}}
 
{{Specs-Tank-Weapon|1}}
−
<!-- ''Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.'' -->{{Main|M2HB (12.7 mm)}}
+
<!-- ''Give the reader information about the characteristics of the main gun. Assess its effectiveness in a battle based on the reloading speed, ballistics and the power of shells. Do not forget about the flexibility of the fire, that is how quickly the cannon can be aimed at the target, open fire on it and aim at another enemy. Add a link to the main article on the gun: <code><nowiki>{{main|Name of the weapon}}</nowiki></code>. Describe in general terms the ammunition available for the main gun. Give advice on how to use them and how to fill the ammunition storage.'' -->
 +
{{main|M2HB (12.7 mm)}}
  
 
{| class="wikitable" style="text-align:center" width="100%"
 
{| class="wikitable" style="text-align:center" width="100%"
 
|-
 
|-
−
! colspan="6" | [[M2HB (12.7 mm)|12.7 mm M2HB machine gun]] (x6) || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
+
! colspan="6" | [[M2HB (12.7 mm)|12.7 mm M2HB]] (x6) || colspan="5" | Turret rotation speed (°/s) || colspan="4" | Reloading rate (seconds)
 
|-
 
|-
 
! Mode !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal !! Stabilizer
 
! Mode !! Capacity (Belt) !! Fire rate !! Vertical !! Horizontal !! Stabilizer
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|-
 
|-
 
! ''Arcade''
 
! ''Arcade''
−
| rowspan="2" | 6600 (1100) || rowspan="2" | 575 || rowspan="2" | -10°/+85° || rowspan="2" |±180° || rowspan="2" | N/A || 57.2 || - || - || - || 81.8 || rowspan="2" | 15.6 || rowspan="2" | - || rowspan="2" | - || rowspan="2" | 12.0
+
| rowspan="2" | 6,600 (1,100) || rowspan="2" | 575 || rowspan="2" | -10°/+85° || rowspan="2" | ±180° || rowspan="2" | - || 57.2 || 79.2 || 96.2 || 106.4 || 113.2 || rowspan="2" | 15.60 || rowspan="2" | 13.80 || rowspan="2" | 12.72 || rowspan="2" | 12.00
 
|-
 
|-
 
! ''Realistic''
 
! ''Realistic''
−
| 38.7 || - || - || - || 55.2
+
| 38.7 || 45.5 || 55.2 || 61.1 || 65.0
 
|-
 
|-
 
|}
 
|}
  
 
==== Ammunition ====
 
==== Ammunition ====
 +
* '''Common:''' {{Annotation|API-T|M20 armour-piercing incendiary tracer}}{{-}}{{Annotation|I|M1 incendiary}}{{-}}{{Annotation|AP|M2 armour-piercing}}{{-}}{{Annotation|API-T|M20 armour-piercing incendiary tracer}} - This is the stock ammunition belt for this vehicle; works fairly well against enemy aircraft up until you research the next few ammo belts.
 +
* '''API:''' {{Annotation|API-T|M20 armour-piercing incendiary tracer}}{{-}}{{Annotation|AP-I|M8 armour-piercing incendiary}}{{-}}{{Annotation|API-T|M20 armour-piercing incendiary tracer}} - This ammo belt uses mainly armour-piercing incendiary rounds, which can be useful for setting aircraft on fire and may serve well against very lightly armoured ground vehicles.
 +
* '''AP:''' {{Annotation|AP|M2 armour-piercing}}{{-}}{{Annotation|AP|M2 armour-piercing}}{{-}}{{Annotation|API-T|M20 armour-piercing incendiary tracer}} - This belt prioritizes armour-piercing bullets over armour-piercing incendiary rounds and can be useful against lightly armoured ground targets if utilized correctly despite its seemingly nonexistent post-penetration effects.
 +
* '''APIT:''' {{Annotation|API-T|M20 armour-piercing incendiary tracer}} - This belt only uses armour-piercing incendiary bullets, which can be useful against ground targets, but can also set aircraft on fire easily if used well enough due to its incendiary effects.
  
−
* '''Common:''' {{Annotation|API-T|Armor-piercing incendiary tracer}}{{-}}{{Annotation|I|Incendiary}}{{-}}{{Annotation|AP|Armor-piercing}} - This is the stock ammunition belt for this vehicle; works fairly well against enemy aircraft up until you research the next few ammo belts.
+
{{:M2HB (12.7 mm)/Ammunition|I, API-T, AP, AP-I}}
−
* '''API:''' {{Annotation|API-T|Armor-piercing incendiary tracer}}{{-}}{{Annotation|AP-I|Armor-piercing incendiary}} - This ammo belt uses mainly armor-piercing incendiary rounds, which can be useful for setting aircraft on fire and may serve well against very lightly armored ground vehicles.
 
−
* '''AP:''' {{Annotation|AP|Armor-piercing}}{{-}}{{Annotation|API-T|Armor-piercing incendiary tracer}} - This belt prioritizes armor-piercing bullets over armor-piercing incendiary rounds and can be useful against lightly armored ground targets if utilized correctly despite its seemingly nonexistent post-penetration effects.
 
−
* '''APIT:''' {{Annotation|API-T|Armor-piercing incendiary tracer}} - This belt only uses armor-piercing incendiary bullets, which can be useful against ground targets, but can also set aircraft on fire easily if used well enough due to its incendiary effects.
 
−
 
 
−
{{:M2HB (12.7 mm)/Ammunition|API, AP, APIT}}
 
  
 
==== [[Ammo racks]] ====
 
==== [[Ammo racks]] ====
−
{| class="wikitable" style="test-align:center"
+
<!-- [[File:Ammoracks_{{PAGENAME}}.png|right|thumb|x250px|[[Ammo racks]] of the {{PAGENAME}}]] -->
 +
<!-- '''Last updated:''' -->
 +
{| class="wikitable" style="text-align:center"
 
|-
 
|-
 
! Full<br>ammo
 
! Full<br>ammo
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! 5th<br>rack empty
 
! 5th<br>rack empty
 
! 6th<br>rack empty
 
! 6th<br>rack empty
−
! 7th<br>rack empty
 
 
! Visual<br>discrepancy
 
! Visual<br>discrepancy
 
|-
 
|-
−
| - || - || - || - || - || - || - || -
+
| '''6''' || __&nbsp;''(+__)'' || __&nbsp;''(+__)'' || __&nbsp;''(+__)'' || __&nbsp;''(+__)'' || __&nbsp;''(+__)'' || __&nbsp;''(+__)'' || __
−
!
 
 
|-
 
|-
 
|}
 
|}
  
 
== Usage in battles ==
 
== Usage in battles ==
 +
<!-- ''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).'' -->
 
''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''
 
''Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).''
  
 
=== Pros and cons ===
 
=== Pros and cons ===
 +
<!-- ''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".'' -->
 
''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".''
 
''Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".''
 +
 +
'''Pros:'''
 +
*
 +
 +
'''Cons:'''
 +
*
  
 
== History ==
 
== History ==
 +
<!-- ''Describe the history of the creation and combat usage of the vehicle in more detail than in the introduction. If the historical reference turns out to be too long, take it to a separate article, taking a link to the article about the vehicle and adding a block "/History" (example: <nowiki>https://wiki.warthunder.com/(Vehicle-name)/History</nowiki>) and add a link to it here using the <code>main</code> template. Be sure to reference text and sources by using <code><nowiki><ref></ref></nowiki></code>, as well as adding them at the end of the article with <code><nowiki><references /></nowiki></code>. This section may also include the vehicle's dev blog entry (if applicable) and the in-game encyclopedia description (under <code><nowiki>=== In-game description ===</nowiki></code>, also if applicable).'' -->
 +
During World War II, the US Army mainly utilised self-propelled anti-aircraft guns based off the M3 half-track, such as the M13 and M16 Multiple Gun Motor Carriages (MGMC). These half-tracks were effective and used multiple .50 cals (12.7 mm machine guns) on a power-operated turret. Even though these half-tracks were useful, the US Army ideally wanted full-tracked vehicles so as to have the potential mobility of a tank. Attempts at a full-tracked anti-aircraft vehicle included four .50 cals mounted on a Mark 17 gun mount and fitted onto the hull of an M3 Stuart light tank, which at the time was widely used by the Allies in World War II. This design, developed in 1942, was rejected, however.
  
−
=== Development ===
+
With the development of the T24 prototype light tank (later standardised and redesignated as the M24 Chaffee), work had already begun developing an anti-aircraft vehicle based off the T24 in July 1943 and it was designated '''Carriage, Motor, Multiple, Cal. .50 Gun, T77'''. The M24 proved to be very effective in Europe later on during World War II, so an anti-aircraft vehicle based off this design seemed promising. Initially, the T77 was to be mounted with four 12.7 mm machine guns on the T89 quadruple gun mount, developed by the United Shoe Machinery Corporation with some help from the US Army Air Forces. This mount was fully powered and could be operated remotely to reduce muzzle flash from preventing the gunner from seeing clearly. By the end of 1943, the design was approved for a mock-up to be made, which was finished by December and inspected by military officials who requested that two more 12.7 mm machine guns be added to the vehicle.
−
During World War II, the U.S. Army mainly utilized self-propelled anti-aircraft guns based off the M3 half-track, such as the M13 and M16 Multiple Gun Motor Carriages (MGMC). These half-tracks were effective and used multiple .50 cals (12.7 mm machine guns) on a power-operated turret. Even though these half-tracks were useful, the U.S. Army ideally wanted full-tracked vehicles so as to have the potential mobility of a tank. Attempts at a full-tracked anti-aircraft vehicle included four .50 cals mounted on a Mark 17 gun mount and fitted onto the hull of an M3 Stuart light tank, which at the time was widely used by the Allies in World War II. This design, developed in 1942, was rejected, however.
 
  
−
With the development of the T24 prototype light tank (later standardized and redesignated as the M24 Chaffee), work had already began and developing an anti-aircraft vehicle based off the T24 in July 1943 and was designated '''Carriage, Motor, Multiple, Cal. .50 Gun, T77'''. The M24 proved to be very effective in Europe later on during World War II and so an anti-aircraft vehicle based off this design seemed to be doing well and solid. Initially, the T77 was to be mounted with four 12.7 mm machine guns on the T89 quadruple gun mount, developed by the United Shoe Machinery Corporation with some help from the U.S. Army Air Forces. This mount was fully powered and could be operated remotely to reduce muzzle flash from preventing the gunner to see clearly. By the end of 1943, the design was approved for a mock-up to be made, which was finished by December and inspected by military officials, who requested that an additional two more 12.7 mm machine guns be added to the vehicle.
+
In April 1944, two prototypes of the T77 were ordered after these changes were made. One of the two prototypes was finally completed in July 1945 and had a crew layout similar to the original M24 Chaffee light tank, albeit without a tank loader, as well as a hull-mounted .30 cal (7.62 mm) machine gun that a machine gunner could operate, just like on the original Chaffee. The hull design and armour of the T77 was practically the same as that of the M24, the only notable difference overall being the turret, obviously equipped with the machine guns, as well as the circular hatches that the gunner and commander sat into. After the first T77 was completed, it was taken to the Aberdeen Proving Ground for further evaluation and testing. The second prototype – designated the T77E1 – was also completed and had an advanced fire control system, as well as clear acrylic domes covering the gunner and commander hatches, compared to the first prototype.
−
 
 
−
On April 1944, two prototypes of the T77 were ordered after these changes were made. One of the two prototypes were finally completed in July 1945 and had a crew layout similar to the original M24 Chaffee light tank, albeit without a tank loader, as well as a hull-mounted .30 cal (7.62 mm) machine gun that a machine gunner could operate, just like on the original Chaffee. The hull design and armour of the T77 was practically the same as that of the M24, the only notable difference overall being the turret, obviously equipped with the machine guns, as well as the circular hatches that the gunner and commander sat into. After the first T77 was completed, it was taken to the Aberdeen Proving Ground for further evaluation and testing. The second prototype – designated the T77E1 – was also completed and had an advanced fire control system, as well as clear acrylic domes covering the gunner and commander hatches, contrast to the first prototype.
 
  
 
These two prototypes would have been a good design that could have potentially entered service, though this never did take place as World War II ended before the T77 or T77E1 could see active service, and both prototypes were presumably scrapped.
 
These two prototypes would have been a good design that could have potentially entered service, though this never did take place as World War II ended before the T77 or T77E1 could see active service, and both prototypes were presumably scrapped.
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;Skins
 
;Skins
−
 
+
* [https://live.warthunder.com/feed/camouflages/?vehicle=us_t77e1 Skins and camouflages for the {{PAGENAME}} from live.warthunder.com.]
−
* [https://live.warthunder.com/feed/all/?q=%23T77E1 Skins and camouflages for the T77E1 on live.warthunder.]
 
−
 
 
−
;Videos
 
  
 
== See also ==
 
== See also ==

Revision as of 18:33, 20 November 2024

T77E1
us_t77e1.png
T77E1
USA flag.png USA
II Rank
Battle rating:
AB RB SB
3.7 3.7 3.7
Class:
Research:11 000 Specs-Card-Exp.png
Purchase:22 000 Specs-Card-Lion.png
Show in game

Description

The T77E1 Multiple Gun Motor Carriage (MGMC) is an American self-propelled anti-aircraft gun mounted on the M24 light tank chassis and armed with six 12.7 mm M2HB machine guns. It development in July 1943 using the hull of the M24, which was still in development and designated as the T24. This SPAA was designated as the Carriage, Motor, Multiple, Cal. .50 Gun, T77, and was armed with four 12.7 mm machine guns. The design was approved for a mock-up by the end of 1943. After inspecting this mock-up, officials requested that two additional machine guns be added to the vehicle. The first T77 was completed in July 1945, and a second prototype was also made and designated as the T77E1. However, by this time World War II had already ended. The T77 never saw active service and the two prototypes were presumably soon scrapped.

The T77E1 was introduced in Update "Firebirds", and as it is based off the M24's light tank hull, it is a very light and mobile vehicle. The .50 cal armament can potentially be useful against armoured targets on the ground, though it is not ideal to engage with tanks at its battle rating and its thin, though angled, armour. With some good precision, you can easily take down enemy aircraft with your numerous machine guns.

General info

Survivability and armour

Armourfront / side / back
Hull25 / 25 / 19
Turret13 / 13 / 13
Crew4 people
Visibility97 %

Armour type:

  • Rolled homogeneous armour (hull, turret)
Armour Front (Slope angle) Sides Rear Roof
Hull 25.4 mm (60°) (upper glacis)
25.4 mm (44°) (lower glacis) 		25.4 mm (12°) (front portion)
19.05 mm (12°) (back portion) 		19 mm 12.7 mm
Turret 12.7 mm 12.7 mm 12.7 mm 12.7 mm

Notes:

  • Suspension wheels and tracks are 15 mm thick.

The T77E1 uses the M24's chassis, which is lightly armoured all around and can be potentially susceptible to enemy fire if used closer into the battlefield. Though this vehicle is armoured on top, it is still vulnerable to planes strafing and close air support, especially planes with autocannons or bombs.

Mobility

Speedforward / back
AB62 / 26 km/h
RB and SB57 / 24 km/h
Number of gears8 forward
4 back
Weight18.4 t
Engine power
AB565 hp
RB and SB296 hp
Power-to-weight ratio
AB30.7 hp/t
RB and SB16.1 hp/t
Game Mode Max Speed (km/h) Weight (tons) Engine power (horsepower) Power-to-weight ratio (hp/ton)
Forward Reverse Stock Upgraded Stock Upgraded
Arcade 62 26 18.4 420 565 22.83 30.71
Realistic 57 24 262 296 14.24 16.09

Like the M24, the T77E1 is pretty fast and mobile. Though the acceleration can be slow, the top speed of this vehicle is high, as well as its reverse speed, both of which may allow you to pull out of a rough situation very quickly and easily. While using this tank against ground targets might not be the best decision, if you do find yourself in a fight with one, flanking enemies and using this vehicle's mobility to its advantage may help you to get the best outcome in a battle.

Modifications and economy

Repair costBasic → Reference
AB859 → 1 105 Sl icon.png
RB699 → 899 Sl icon.png
SB1 073 → 1 380 Sl icon.png
Total cost of modifications10 330 Rp icon.png
13 800 Sl icon.png
Talisman cost750 Ge icon.png
Crew training6 300 Sl icon.png
Experts22 000 Sl icon.png
Aces210 Ge icon.png
Research Aces220 000 Rp icon.png
Reward for battleAB / RB / SB
60 / 60 / 100 % Sl icon.png
124 / 124 / 124 % Rp icon.png
Modifications
Mobility Protection Firepower
Mods new tank traks.png
Tracks
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
85 Ge icon.png
Mods new tank suspension.png
Suspension
Research:
470 Rp icon.png
Cost:
620 Sl icon.png
75 Ge icon.png
Mods new tank break.png
Brake System
Research:
470 Rp icon.png
Cost:
620 Sl icon.png
75 Ge icon.png
Mods new tank filter.png
Filters
Research:
650 Rp icon.png
Cost:
860 Sl icon.png
105 Ge icon.png
Mods new tank transmission.png
Transmission
Research:
1 100 Rp icon.png
Cost:
1 500 Sl icon.png
175 Ge icon.png
Mods new tank engine.png
Engine
Research:
1 100 Rp icon.png
Cost:
1 500 Sl icon.png
175 Ge icon.png
Mods tank tool kit.png
Improved Parts
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
85 Ge icon.png
Mods extinguisher.png
Improved FPE
Research:
470 Rp icon.png
Cost:
620 Sl icon.png
75 Ge icon.png
Mods tank reinforcement us.png
Crew Replenishment
Research:
650 Rp icon.png
Cost:
860 Sl icon.png
105 Ge icon.png
Mods tank ammo.png
12mm_usa_M2HB_API_ammo_pack
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
85 Ge icon.png
Mod arrow 0.png
Mods new tank horizontal aiming.png
Horizontal Drive
Research:
520 Rp icon.png
Cost:
690 Sl icon.png
85 Ge icon.png
Mods tank ammo.png
12mm_usa_M2HB_AP_ammo_pack
Research:
470 Rp icon.png
Cost:
620 Sl icon.png
75 Ge icon.png
Mod arrow 0.png
Mods tank cannon.png
Adjustment of Fire
Research:
470 Rp icon.png
Cost:
620 Sl icon.png
75 Ge icon.png
Mods tank ammo.png
12mm_usa_M2HB_APIT_ammo_pack
Research:
650 Rp icon.png
Cost:
860 Sl icon.png
105 Ge icon.png
Mods new tank vertical aiming.png
Elevation Mechanism
Research:
650 Rp icon.png
Cost:
860 Sl icon.png
105 Ge icon.png
Mods art support.png
Artillery Support
Research:
1 100 Rp icon.png
Cost:
1 500 Sl icon.png
175 Ge icon.png

Armaments

Main armament

6 x 12.7 mm M2HB machine gun
Ammunition6 600 rounds
Belt capacity1 100 rounds
Reloadbasic crew → aces
15.6 → 12.0 s
Fire rate575 shots/min
Vertical guidance-10° / 85°
Main article: M2HB (12.7 mm)
12.7 mm M2HB (x6) Turret rotation speed (°/s) Reloading rate (seconds)
Mode Capacity (Belt) Fire rate Vertical Horizontal Stabilizer Stock Upgraded Full Expert Aced Stock Full Expert Aced
Arcade 6,600 (1,100) 575 -10°/+85° ±180° - 57.2 79.2 96.2 106.4 113.2 15.60 13.80 12.72 12.00
Realistic 38.7 45.5 55.2 61.1 65.0

Ammunition

  • Common: API-T · I · AP · API-T - This is the stock ammunition belt for this vehicle; works fairly well against enemy aircraft up until you research the next few ammo belts.
  • API: API-T · AP-I · API-T - This ammo belt uses mainly armour-piercing incendiary rounds, which can be useful for setting aircraft on fire and may serve well against very lightly armoured ground vehicles.
  • AP: AP · AP · API-T - This belt prioritizes armour-piercing bullets over armour-piercing incendiary rounds and can be useful against lightly armoured ground targets if utilized correctly despite its seemingly nonexistent post-penetration effects.
  • APIT: API-T - This belt only uses armour-piercing incendiary bullets, which can be useful against ground targets, but can also set aircraft on fire easily if used well enough due to its incendiary effects.

Penetration statistics
Ammunition Penetration @ 0° Angle of Attack (mm)
10 m 100 m 500 m 1,000 m 1,500 m 2,000 m
I 7 7 6 5 3 3
API-T 29 27 19 12 7 5
AP 31 29 21 14 9 6
AP-I 30 27 19 12 8 5
Shell details
Ammunition Velocity
(m/s) 		Projectile
mass (kg) 		Fuse delay Fuse sensitivity
(mm) 		Explosive mass
(TNT equivalent) (g) 		Ricochet
0% 50% 100%
I 944 0.04 0 3 0 47° 56° 65°
API-T 929 0.04 - - - 47° 56° 65°
AP 894 0.05 - - - 47° 56° 65°
AP-I 929 0.04 - - - 47° 56° 65°

Ammo racks

Full
ammo 		1st
rack empty 		2nd
rack empty 		3rd
rack empty 		4th
rack empty 		5th
rack empty 		6th
rack empty 		Visual
discrepancy
6 __ (+__) __ (+__) __ (+__) __ (+__) __ (+__) __ (+__) __

Usage in battles

Describe the tactics of playing in the vehicle, the features of using vehicles in the team and advice on tactics. Refrain from creating a "guide" - do not impose a single point of view but instead give the reader food for thought. Describe the most dangerous enemies and give recommendations on fighting them. If necessary, note the specifics of the game in different modes (AB, RB, SB).

Pros and cons

Summarise and briefly evaluate the vehicle in terms of its characteristics and combat effectiveness. Mark its pros and cons in a bulleted list. Try not to use more than 6 points for each of the characteristics. Avoid using categorical definitions such as "bad", "good" and the like - use substitutions with softer forms such as "inadequate" and "effective".

Pros:

Cons:

History

During World War II, the US Army mainly utilised self-propelled anti-aircraft guns based off the M3 half-track, such as the M13 and M16 Multiple Gun Motor Carriages (MGMC). These half-tracks were effective and used multiple .50 cals (12.7 mm machine guns) on a power-operated turret. Even though these half-tracks were useful, the US Army ideally wanted full-tracked vehicles so as to have the potential mobility of a tank. Attempts at a full-tracked anti-aircraft vehicle included four .50 cals mounted on a Mark 17 gun mount and fitted onto the hull of an M3 Stuart light tank, which at the time was widely used by the Allies in World War II. This design, developed in 1942, was rejected, however.

With the development of the T24 prototype light tank (later standardised and redesignated as the M24 Chaffee), work had already begun developing an anti-aircraft vehicle based off the T24 in July 1943 and it was designated Carriage, Motor, Multiple, Cal. .50 Gun, T77. The M24 proved to be very effective in Europe later on during World War II, so an anti-aircraft vehicle based off this design seemed promising. Initially, the T77 was to be mounted with four 12.7 mm machine guns on the T89 quadruple gun mount, developed by the United Shoe Machinery Corporation with some help from the US Army Air Forces. This mount was fully powered and could be operated remotely to reduce muzzle flash from preventing the gunner from seeing clearly. By the end of 1943, the design was approved for a mock-up to be made, which was finished by December and inspected by military officials who requested that two more 12.7 mm machine guns be added to the vehicle.

In April 1944, two prototypes of the T77 were ordered after these changes were made. One of the two prototypes was finally completed in July 1945 and had a crew layout similar to the original M24 Chaffee light tank, albeit without a tank loader, as well as a hull-mounted .30 cal (7.62 mm) machine gun that a machine gunner could operate, just like on the original Chaffee. The hull design and armour of the T77 was practically the same as that of the M24, the only notable difference overall being the turret, obviously equipped with the machine guns, as well as the circular hatches that the gunner and commander sat into. After the first T77 was completed, it was taken to the Aberdeen Proving Ground for further evaluation and testing. The second prototype – designated the T77E1 – was also completed and had an advanced fire control system, as well as clear acrylic domes covering the gunner and commander hatches, compared to the first prototype.

These two prototypes would have been a good design that could have potentially entered service, though this never did take place as World War II ended before the T77 or T77E1 could see active service, and both prototypes were presumably scrapped.

Media

Skins

See also

Vehicles equipped with the same chassis
Other vehicles of similar configuration and role

External links


USA anti-aircraft vehicles
M3 Half-track derivatives  M13 MGMC · M15 CGMC · M16 MGMC
M24 derivative  M19A1
M41 derivative  M42
Radar SPAAG  M163 · M247
Missile SPAA  ADATS · Imp.Chaparral · LAV-AD · XM975

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