Object 907 (medium tank)
| Object 907 | |
|---|---|
| Service characteristics | |
| Type | Medium tank |
| Users | File:Flag of the Soviet Union (1955–1991).svg Soviet Union |
| Production | |
| Conceptors | Uralvagonzavod (Factory N°75), VNIITransmash, Malichev Factory (Factory N°183) |
| Manufacturer | VNII-100 |
| Production | 1954-1956 |
| Number produced | 1 prototype unfinished |
| General characteristics | |
| Crew | 4 crew members |
| Length | 6440 mm |
| Width | 3300 mm |
| Height | 2495 mm |
| Ground clearance | 425 mm |
| Mass in battle | 36 tons |
| Armor (thickness/ inclination) | |
| Armor | Casted steel, turret and hull
Hull: Front plates, upper plate, from 55 to 162 mm angled from 50 to 80°. lower plate, from 55 to 150 mm angled from 65 to 110° Flanks, from 40 to 124 mm angled at 60° Floor, from 16 to 30 mm Back, 45 mm angled at 10° Turret: Front, from 144 to 288 mm angled 30 to 60° Flanks, from 144 to 228 mm angled 30 to 60° Back, from 46 to 65 mm angled from 30 to 60° |
| Armament | |
| Main armament | 100 mm DT-10 or 122mm M62 |
| Secondary armament | One 14,5 mm KPVT machine gun and two 7,62 mm SGMT machine guns.
Bullets capacity, 500 for KPVT's and 3000 for SGMT's |
| Mobility | |
| Engine | V12-5 |
| Power | 515 kW (700 hp) at 2 100 rpm |
| Suspension | Torsion bars with hydraulic shock absorbers on all rollers |
| Speed | 50 km/h on road, 35 km/h on dry rough terrain |
| Maximal slope | 30° |
| Power/weight | 19.5 hp/ton |
| Operational range | >350 km (on road) |
| modifier link=Modèle:Infobox_Blindé|12x12px|Consultez la documentation du modèle | |
Object 907 is a Soviet medium tank of Soviet Union, to succeed the T-54, already produced in mass.[1]
History and conception
In 1944, began project A-22, renamed as T-22, project of a well performing medium tank, a prototype was made in 1949 in Izhorskie's factory of Saint-Petersburg. This project was abandoned in favour of Object 726/279 projects. But it contributed a lot to the creation of the Object 907.[2][1][3]
In May 1952, a meeting with the directorate of armoured vehicle factories and armored forces marshal Semion Bogdanov at the Ministry of Engineering and Transports.[4][5][1]
This meeting focused on new tank types, more powerful, with increased armor protection and better dynamics and operational performances without exceeding the T-54 total weight.[4][3]
In June of the same year, the technical and tactical requirements of the new medium tank were decided.[1][4][5]
These requirements that were concluded are much higher than the T-54 ones, which are the following:[1][5]
- A maximal battle mass of 36 tons.[1][5][4]
- A length inferior to 3300 mm, and a lower profile than the T-54 one.[1][5][4]
- An armour from 20 to 30% better than T-54.[1][5][4]
- A road speed superior to 55 km/h and a rough speed between 35 and 40 km/h.[1][4][5]
- A minimum weight power of 20 hp/t.
- An operational range superior of 350 km.[1]
- Passing a slope of at least 40°.[1]
In view of the fixed requirements, it was decided to commission a preliminary study from Factories N°75, 174, 183 and VNII-100.[4][3]
Once the preliminary study was completed with a positive notice, it was requested in 1954 to the VNIITransmash factory to produce a first prototype. This prototype was delivered in 1956, without any cannon, engine, suspension... This prototype was used to estimate survival capacities and performances of the tank with ballistic experimentations. These tests demonstrated that special shapes used, increased the armor by 30% compared to the T-54.[4][5]
However, the project was abandoned due to the excessive complexity of mass production and the entry into mass production of the T-54, which is much cheaper and easier to build.[4][5]
Technical descriptions
Hull and Turret
Because of their shapes, hull and turret are both made of moulded steel. The rounded shapes gave better armor.[4][1][3]
From 55 to 162 mm at 50 to 110° for the hull's front.[1]
40 to 124 mm angled at 60° for the hull's flanks.[1]
The floors from 16 to 30 mm, for the back, 45 mm at 10°.[1]
The turret is armored from 46 to 288 mm at 30 to 60°.[1]
Armament
Object 907 should have first the 100 mm gun D-54TS, like many other Soviet medium tanks of this period. It was concluded to install the 100 mm D-10T or the 122 mm M-62 cannon. This tank could contain 40 shells of 100 mm.[4][5][3]
As secondary armament, it should have one 14,5 mm KVPT placed in AA, and 2 other machine guns of 7,62 mm SGMT placed in coaxial. Their cartridge capacity were: 500 for the KPVT and 3000 for SMGTs.[4][5][3]
Internal equipment
Object 907 had in internal equipment, a radio RTU of the same size as a radio 10PT-12.[1][3]
On optics could be installed, a Ts-30 sight. The commander periscope was stabilised, and could have a telemetric sight. The gunner was equipped with a telemetric sight too.[5][1][3]
Mobility
Engine
The Object 907 had to have the V-12-5 engine from ChTZ manufacturer, this engine was equipped on the Object 268 too. Its power being 900 hp, at 515 kW, the weight power of Object 907 could be of 20 hp per ton and a road speed of 50 km/h, 35 on rough dry terrain and passing a slope of maximum 30°.[4][5][3]
Suspension
It must be equipped with a torsion bars suspension and with hydraulic shock absorbers on all rollers. The suspension is composed, by each side, of 6 carrying rollers, one similar which is on front, 3 support rollers and the drive gear.[4][5]
Existing copies
None of Object 907's prototypes were finished, this project stayed as a prototype. The prototypes used, damaged were surely scraped.
Popular culture/ video games
Object 907 is in the game World of Tanks as a competitive event reward tank.[6]
Notes and references
- ↑ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 "Объект 907". May 25, 2023.
- ↑ "T-22 Medium".
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 Pavlov and Pavlov, M.V and I.B (2011). ОТЕЧЕСТВЕННЫЕ БРОНИРОВАННЫЕ МАШИНЫ 1945–1965 гг. // «Техника и вооружение. Вчера, сегодня, завтра...» (in Russian). Москва: Техинформ. ISBN 978-5-85905-623-1.CS1 maint: Unrecognized language (link) Search this book on
- ↑ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 "Wikiwarriors".
- ↑ 5.00 5.01 5.02 5.03 5.04 5.05 5.06 5.07 5.08 5.09 5.10 5.11 5.12 5.13 "Alternathistory".
- ↑ "Wargaming".
External links
- (fr) This page was translated from French to English with the French page named "Object 907 (char moyen)"
- (ru) This page was made using in part the Russian page named "Объект 907 (средний танк)"
- Павлов М. В., Павлов И. В. ОТЕЧЕСТВЕННЫЕ БРОНИРОВАННЫЕ МАШИНЫ 1945–1965 гг. // «Техника и вооружение. Вчера, сегодня, завтра...» / Муратов М.. — Москва: Техинформ, 2011. — № 3. — С. 48—56. — ISSN 1682-7597
- М. В. Павлов, И. В. Павлов. Отечественные бронированные машины 1945—1965 гг. // Техника и вооружение: вчера, сегодня, завтра. — Москва: Техинформ, 2009. — № 8. — С. 56.
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