T3 HMC
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The T3 HMC, otherwise known by its full designation of the '''T3 75mm Howitzer Motor Carriage''', was an early attempt by the United States Army to provide a self-propelled artillery piece by mounting an M1A1 75mm pack howitzer on the chassis of an M1 Combat Car (which would later redesigned as the "M1 Light Tank"). The old turret, which carried two machine-guns, was removed on the T3 and replaced with a small turret offset to the left, which carried only one machine-gun (reminiscent of one of the mini-turrets on the M2A2 Light Tank).The howitzer was flanked by two narrow 'doors' for protection during transit, which could be opened to expand the gun's firing arc. The gun could still be fired with the doors closed; however, the lack of any gun traverse meant that the gun could only be elevated or lowered from the position, and the entire vehicle would have to turn to track the gun. | The T3 HMC, otherwise known by its full designation of the '''T3 75mm Howitzer Motor Carriage''', was an early attempt by the United States Army to provide a self-propelled artillery piece by mounting an M1A1 75mm pack howitzer on the chassis of an M1 Combat Car (which would later redesigned as the "M1 Light Tank"). The old turret, which carried two machine-guns, was removed on the T3 and replaced with a small turret offset to the left, which carried only one machine-gun (reminiscent of one of the mini-turrets on the M2A2 Light Tank).The howitzer was flanked by two narrow 'doors' for protection during transit, which could be opened to expand the gun's firing arc. The gun could still be fired with the doors closed; however, the lack of any gun traverse meant that the gun could only be elevated or lowered from the position, and the entire vehicle would have to turn to track the gun. | |||
? | The conclusion made by the US Field Artillery command was that the tank was simply too crowded to function properly, even with just two crew members manning the HMC. The position of the gun in | + | The conclusion made by the US Field Artillery command was that the tank was simply too crowded to function properly, even with just two crew members manning the HMC. The position of the gun in the crew compartment made the interior very cramped and impossible for the crew to offer support in combat. The Armored Force division examined the rejected prototype, hoping to press it into service as an assault gun; along with Field Artillery, they spurned it for the same reasons as before. Despite the failure of the model, data gathered from testing was useful in the development of the T18 HMC, although the new design was also regarded as unsuccessful. | |
|HistoricalGallery= | |HistoricalGallery= | |||
? | image:1392774512 otvaga2004 us-artillery 02.jpg{{!}}The T3 HMC prototype. The machine gun | + | image:1392774512 otvaga2004 us-artillery 02.jpg{{!}}The T3 HMC prototype. The machine gun nominally mounted in the small side turret is not present. | |
+ | ||||
+ | image:1392774489 otvaga2004 us-artillery 03.jpg{{!}}The frontal profile of the T3 HMC. The side doors are opened, and the designation 'E 1' is emblazoned above the closed driver's window (probably shorthand for 'Experimental, model 1') | |||
image:1392774518 otvaga2004 us-artillery 01.jpg{{!}}The side profile of the T3 HMC. Note the opening in the side to allow easier access to the crew compartment. | image:1392774518 otvaga2004 us-artillery 01.jpg{{!}}The side profile of the T3 HMC. Note the opening in the side to allow easier access to the crew compartment. | |||
+ | ||||
|HistAcc= | |HistAcc= | |||
*Only the 75mm M1A1 pack howitzer was used on the T3. No other weapons were tested or even considered for this tank. | *Only the 75mm M1A1 pack howitzer was used on the T3. No other weapons were tested or even considered for this tank. |
Revision as of 20:02, 7 December 2015
T3 HMC
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[Client Values; Actual values in
3,000 Cost |
22044 HP Hit Points |
9.11/9.53.23/11 t Weight Limit |
- Commander (Gunner, Radio Operator, Loader)
- Driver
262288 hp Engine Power |
72.4/7 km/h Speed Limit |
3434 deg/s Traverse |
28.7689.16 hp/t Power/Wt Ratio |
YesYes Pivot |
// mm Hull Armor |
AP/APCR/HE
HE/HEAT Shells |
18/800/10
56/2800/10 Shell Cost |
40/40/5040/40/50 HP Damage |
56/78/1956/78/19 mm Penetration |
r/m ▲
28.57 r/m Standard Gun ▲
28.57 Rate of Fire Standard Gun |
▲
Standard Gun
▼
Standard Gun
▲
1142.8 Standard Gun ▲
Standard Gun ▼
Standard Gun
▲
488.4 Damage Per Minute Standard Gun
|
m ▲
0.4 m With 50% Crew: 0.509 m ▲
0.4 Accuracy With 50% Crew: 0.509 m |
s 1.5 s 1.5 Aim time |
5050 deg/s Gun Traverse Speed |
27° Gun Arc |
-7°/+21°-7°/+21° Elevation Arc |
250250 rounds Ammo Capacity |
2020 % Chance of Fire |
m 270 m 270 View Range |
m 265 m 265 Signal Range |
II
3000
The T3 HMC is an American tier 2 tank destroyer.
Light SPG for infantry and tank support. Developed in 1938 on the M1A3 chassis. Only one prototype was built. The trials demonstrated a number of technical and functional problems, and the vehicle never saw service.
The T3 HMC marks the end of its American tank destroyer line.
Modules / Available Equipment and Consumables
Modules
Tier | Engine | Engine Power (hp) |
Chance of Fire on Impact (%) |
Weight (kg) |
Price ()
| |
---|---|---|---|---|---|---|
III | Continental W-670 | 262 | 20 | 256 | 8200 | |
III | Continental W-670 Series 12 | 288 | 20 | 256 | 8300 |
Tier | Suspension | Load Limit (т) |
Traverse Speed (gr/sec) |
Rmin | Weight (kg) |
Price ()
| |
---|---|---|---|---|---|---|---|
I | T3 HMC | 9.5 | 34 | 0 | 2500 | 270 | |
II | T3 HMC improved | 11 | 34 | 0 | 2500 | 580 |
Compatible Equipment
Compatible Consumables
Gallery
Historical Info
Historical Gallery
Historical Accuracy Errata
*Only the 75mm M1A1 pack howitzer was used on the T3. No other weapons were tested or even considered for this tank.