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At a glance
M108 howitzerlarger figure on 3 of 5
SU-100larger figure on 2 of 5
True scale
Side by side. From every angle. A human reference for perspective.
3.17 MB · Loads when you open it| Model | Length | Width / span | Height |
|---|---|---|---|
| M108 howitzer | ≈ 6.11 m | ≈ 3.15 m (Width) | ≈ 2.78 m |
| SU-100 | ≈ 9.45 m | ≈ 3 m (Width) | ≈ 2.81 m |
Scaled uniformly to the sourced length of 6.11 m. The width was fitted to the sourced 3.15 m. Not an official model or a measured survey.
ForceTally · All rights reserved
Scaled uniformly to the sourced length of 9.45 m. The width was fitted to the sourced 3 m. Not an official model or a measured survey.
ForceTally · All rights reserved
The human reference is a generic 1.75 m figure. Models describe external size, not combat performance.
Measured figures
Configuration
| Specification | M108 howitzer | SU-100 |
|---|---|---|
| Type | Self-propelled gun[source] | Self-propelled anti-tank gun[source] |
| Place of origin | United States[source] | Soviet Union[source] |
| In service | 1962–1975[source] | October 1944 – present[source] |
| Wars | Vietnam War[source] | World War II Suez Crisis Vietnam War Bay of Pigs Invasion Six-Day War Yom Kippur War Iran–Iraq War Yemeni Civil War (2014-present) |
Counts only measures both sources give with the same scope. A larger figure is not a better system.
Length
Single source9.45 m (30 ft)[source]
Effective; Conventional
Single sourceOperational; Operational range
Single sourceRange
Single sourceConventional: 11.5 km (7 mi)[source]
360 km (200 mi)[source]
Range: 360 km[source]M108 howitzer · General characteristics · Range: 360 km
Operational; Cross-country
Single sourceOperational; Cross-country with additional fuel tanks
Single sourceL/30
Single source3.15 m (10 ft 4 in) L/30[source]
Bars compare reported quantities only. A larger figure does not make a system better; configurations and test conditions differ.
| Manufacturer | Cadillac Motor Car Division of General Motors Corp[source] | Uralmash[source]SU-100 original Soviet manufacture at UZTM, explicitly also called Uralmash; not an exclusive manufacturer or licensed-production claim |
|---|
| Shell | 105x372R semi-fixed, semi-fixed cartridge[source] | — |
|---|
| Breech | vertical sliding block[source] | — |
|---|
| Elevation | - 6 to + 75 degrees[source] | — |
|---|
| Traverse | 360°[source] | — |
|---|
| Armor | 31.8 mm (1 in)[source] | front: 75 mm (3 in) sides: 45 mm (1.77 in) rear: 45 mm (1.77 in) roof: 20 mm (.78 in)[source] |
|---|
| Main armament | M103 105 mm howitzer (87 rounds)[source] | 100 mm D-10S gun[source] |
|---|
| Secondary armament | .50 caliber (12.7 mm) M2 machine gun[source] | — |
|---|
| Suspension | torsion-bar[source] | Christie[source] |
|---|
| Former operator · Australia | Australia[source] | — |
|---|
| Former operator · Belgium | Belgium[source] | — |
|---|
| Former operator · Brazil | Brazil[source] | — |
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| Former operator · Cambodia | Cambodia[source] | — |
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| Former operator · Spain | Spain[source] | — |
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| Former operator · Taiwan | Taiwan[source] | — |
|---|
| Former operator · Türkiye | Türkiye[source] | — |
|---|
| Former operator · United States | United States[source] | — |
|---|
| Former operator · Tunisia | Tunisia[source] | — |
|---|
| Role | American self-propelled 105 mm howitzer , first introduced in the early 1960s as a replacement for the M52 self-propelled howitzer[source] | — |
|---|
| Source measurement | The M108 was powered by a Detroit Diesel turbocharged 8V-71T 8-cylinders 405 hp engine. It used the same hull and turret as the 155 mm M109 self-propelled howitzer , and components of the M113 armored personnel carrier . The M108 was phased out soon after the American intervention in the Vietnam War , as the M109's 155 mm calibre was considered better fitted for modern war.[source]M108 howitzer · Lead; only the objects and conditions stated in this passage The M108 howitzer's sole use in combat occurred in the Vietnam War . M108s equipped the first U.S. Army field artillery unit deployed to the conflict, when the 3-6 Field Artillery Battalion was deployed to Pleiku on June 17, 1966. This was soon followed by the 1-40th Field Artillery Battalion to Dong Ha Combat Base in October, 1966. M108s were generally employed from fortified fire bases providing artillery support to units in the field. Because M108 and M109 howitzers could traverse their main gun 360 degrees, unlike towed artillery, they were ideal for holding fire-base positions, which might be subject to attack from any direction. Both M108 battalions were withdrawn and phased out of U.S. Army service in 1975.[source]M108 howitzer · Operational history; only the objects and conditions stated in this passage Length: 6.11 m[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage Width: 3.15 m[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage Height: 3.28 m[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage Speed: 56 km/h (35 mph)[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage Range: 360 km[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage Armament: Primary: M103 105 mm howitzer Secondary: .50 caliber (12.7 mm) M2 machine gun[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage Rate of fire: 4 rounds/min[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage Shooting range: 11.5 km (HE) 15 km (HERA)[source]M108 howitzer · General characteristics; only the objects and conditions stated in this passage FV433 Abbot SPG - British 105mm SPG[source]M108 howitzer · Comparable weapons; only the objects and conditions stated in this passage | — |
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| Origin reported by inventory | United States[source]Inventory Origin column; table 7, row 9, cell 4; revision 1349740034 United States[source]Inventory Origin column; table 10, row 4, cell 4; revision 1360293287 US[source]Inventory Origin column; table 17, row 3, cell 4; revision 1356885199 | — |
|---|
| Designed | — | 1944[source] |
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| Unit cost | — | $448,000 (vehicle's unit price for Morocco in 1967)[source] |
|---|
| No. built | — | 4,976[source] |
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| Power/weight | — | 15.8 hp/tonne[source] |
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| Reported operators |
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Operational; Road
Single sourceOperational; with additional fuel tanks
Single sourceRoad: 250 km (160 mi) 320 km (200 mi) (with additional fuel tanks) Cross-country: 140 km (87 mi) 180 km (110 mi) (with additional fuel tanks)[source]