100 mm anti-tank gun M1977

A407 100mm anti-tank gun M1977
A407 gun of the 612th Anti-tank Battalion.
Type	Anti-tank gun
Place of origin	Socialist Republic of Romania
Service history
In service	1975–present
Wars	Gulf War
Production history
Manufacturer	Arsenal Reşiţa
Specifications
Mass	3,150 kg (6,940 lb)
Length	9.250 m
Barrel  length	4.630 m
Width	2.250 m
Height	1.530 m
Crew	8
Shell	100 x 695 mmR
Caliber	100 millimetres (3.9 in)
Elevation	−5°/+37°
Traverse	27°30' left and right
Rate of fire	7 to 15 rounds per minute
Muzzle velocity	900 m/s for HE 1400 m/s for APFSDS-T
Effective firing range	1.040 m for AP 1.728 m for APFSDS-T
Maximum firing range	20.600 m (HE) 4.000 m (AP) 3.000 m (HEAT)
Sights	mechanical sight, panoramic sight, optical sight, collimator

The A407 100mm anti-tank gun M1977 is a Romanian rifled 100-mm anti-tank gun which serves as the main towed anti-tank gun of the Romanian Land Forces from 1975 until present. Versions of the M1977 gun were installed on main battle tanks (TR-77 and TR-85) and ship turrets on river monitors.

History

The A407 100mm anti-tank gun was the first artillery piece designed in Romania after World War II. The first variant of the gun, the M1975 (M stands for Model) had a semi-automatic horizontal sliding wedge type breech lock. The second variant, M1977, had a more practical vertical sliding wedge breech block. ^[1]

The M1977 can be also used as a field gun at brigade level, as it has a maximum range of 20.6 kilometers. After 1992, the M1977 anti-tank guns were modernized with improved optical sights. ^[2] The gun can be towed with the DAC 665T truck and has a maximum road speed of 60 km/h on road and 30 km/h off-road.

Variants

• M1975 - used the horizontal sliding wedge breech lock.
• M1977 - used the vertical sliding wedge breech lock.
• M2002 - modernized version of M1977 with a FCS TAT-100. ^[3]

Adaptations: ^[4]

• A 308 - tank gun used for TR-77 and TR-85 main battle tanks.
• A 430 - 100 mm gun used for ship turrets.

Operators

•   Iraq ^[5]
•   Israel − One was delivered in 1993. ^[6]
•   North Korea ^[7]
•   Romania − 208 M1977 towed anti-tank guns in 2010. ^[8]

See also

• T-12 antitank gun
• D-10 tank gun
• 100 mm field gun M1944 (BS-3)

References

Citations

1. Stroea A., page 146
2. Stroea. A, page 148
3. "Arsenal Resita". 24 April 2025.
4. Stroea A., page 147
5. Marine Corps Intelligence Activity (1998). Iraq Country Handbook (PDF). U.S. Government Printing Office. p. A-52. Archived from the original (PDF) on 28 May 2005. Retrieved 28 January 2024.
6. UN Disarmament Archived 2008-12-14 at the Wayback Machine
7. "Military Forces of North Korea". Archived from the original on 2012-02-05. Retrieved 2016-03-10.
8. "IISS Military Balance 2010". Archived from the original on 2013-01-19. Retrieved 2011-02-26.

Bibliography

• Foss, Christopher F. (2005). Jane's Armour and Artillery 2005-2006. Jane's Information Group. ISBN   978-0-7106-2686-8.
• Stroea, Adrian; Băjenaru, Gheorghe (2010). Artileria română în date și imagini (Romanian artillery in data and images) (in Romanian). Editura Centrului Tehnic-Editorial al Armatei. ISBN   978-606-524-080-3.

External links

• Arsenal Reşiţa website ^{[ permanent dead link ]}

Video

• Video of the M1977 firing on YouTube