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especially severe in the case of the driver, who was seated next to the engine and whose working station heated up to unbearable temperatures in summer. Another problem emerging was the very crammed and uncomfortable crew compartment. Finally, the SU-102 prototype faced structural problems, being not entirely suitable for absorbing the recoil of the powerful 122 mm gun. Yet these issues were deemed solvable and the vehicles were recommended for mass production after application of several modifications to address the prototypes' problems. Eventually, however, the end of World War II finally led to the conclusion that the vehicles had by now become unnecessary, and in the end, the production of the SU-101 and SU-102 was terminated before it began.
470:. The 122 mm D-25S of the SU-102 against that had originally been developed as an artillery howitzer to be used with high explosive rounds. However, in the course of the war, the gun had also proved to be a very effective anti-tank weapon, capable of knocking out even heavy German tanks, and armour-piercing kinetic energy ammunition had been developed to augment this battlefield role. As such the gun was already in use with the heavier
293:
problems in undulating terrain, where the vehicle could potentially ram its own muzzle into the ground if not driven carefully. Additionally, the SU-100 was very front heavy, which resulted in excessive stress on the forward road wheels, risking mechanical failure. Should the need for upgrading the vehicle with a bigger and heavier gun arise, all these problems were expected to be massively exacerbated.
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To address these deficiencies, UZTM designer N.V. Kurin had developed a number of preliminary designs of new self-propelled guns, using the chassis of different contemporary Soviet tanks, both with crew compartment in the front and in the back. In
October 1944 the bureau offered five projects to the
439:
of the SU-102 prototype, with 28 rounds of ammunition, was even more limited in its gun traverse, not being able to depress the gun further than 0.24° with an elevation of 18.5° and horizontal traverse of 19°. The very limited gun depression is one of the fundamental drawbacks of a rear-mounted gun
407:
The crew of 4 consisted of vehicle commander, gunner, loader and driver. While the driver was seated in the front left side of the vehicle next to the engine, the rest of the crew was placed in the crew compartment around the main gun in the rear. Access to the vehicle was provided by a door in the
338:
The technical review board recognized the SU-100-M-2 and the SU-122-44, both based on the new T-44 medium tank, as the most promising ones, and by order of directive № 625 to the tank industry, dated
October 26, 1944 to the plant of UZTM, ordered the finalization of the design, distribution of the
346:
While the SU-100-M-2 proved to be compact and light enough for a medium tank chassis as well sufficiently armoured, the SU-122-44 soon emerged as too big and too heavy. Thus, on March 7, 1945, by the commissariat's order № 107, all work on the SU-122-44 was terminated, whereas the SU-100-M-2 was
366:
While the war with
Germany had already ended in May 1945, the prototypes were for the time being further tested by the UZTM design bureau during summer and autumn 1945. Several problems emerged, among them was the heating up of the vehicle's interior due to insufficient engine cooling. This was
292:
medium tank, proved satisfactorily in combat, its basic layout with crew compartment in the front and engine in the back was considered a flaw. The lowly mounted gun protruded far from the vehicle's front, which resulted in cumbersome maneuverability in urban or forested areas and could cause
394:
medium tank. The main gun protruded from the crew compartment and arched over the vehicle's engine. Thus, even a long-barreled gun only slightly increased the overall vehicle length, improving maneuverability and eliminating one of the SU-100's major deficits. This layout was referred to as
415:, welded together in a sloped fashion to give it improved protection. The frontal plates had a thickness of 90 mm, the sides 75 mm and the rear 40 mm. During firing tests with the empty hull, the vehicle's protection proved to be superior to the much heavier
430:
gun came with a combat loadout of 35 rounds. While the horizontal gun traverse at 22.5° and the vertical elevation at 18° were entirely sufficient, the engine compartment limited the gun depression at a very meagre −2°, almost eliminating the vehicle's ability to go
351:
and the production of a first prototype by May 1, 1945 was ordered. The designation
Uralmash-1 had already been used for a different self-propelled gun design in August 1943, but that design had not been approved by the commissariat and was frozen at that time.
256:. While mass production was initially recommended, the end of the war with Germany in May 1945 eventually caused the project to be cancelled due to lack of necessity. If the Uralmash-1 had entered service, the 100 mm variant would have been designated
408:
rear of the vehicle. This additionally increased crew survivability, as in the case of an emergency evacuation the crew could exit the vehicle without exposing themselves to enemy fire as much as an evacuation through the roof hatches would require.
466:. The SU-101/SU-102 as a replacement for the SU-100, which was mainly used as tank destroyer, was potentially intended to fulfill the latter's role. The 100 mm D-10S of the SU-101 was a dedicated tank gun with capable kinetic energy
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faced by Soviet forces at that time, which was built in a similar fashion. The layout also spread the vehicles weight more evenly among the road wheels, addressing the mechanical issues faced by the front heavy SU-100.
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vehicle with a flat engine compartment in the front and a boxy elevated crew compartment in the rear, mounted on a suspension taken directly from the
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or self-propelled gun, is a rather diffuse term that was equally applied to vehicles which in combat fulfilled the roles of dedicated
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in late 1944. Two prototypes of the
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machine gun mounted in his roof hatch for use as an anti-aircraft weapon. The DShK ammunition loadout was 450 rounds.
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363:(to be named SU-102). Additionally, a third, empty, hull was made for armour tests under life fire circumstances.
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Work on the SU-101 and SU-102 at the
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In March and April 1945, two prototypes were built, one equipped with the 100 mm
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design bureau (UZTM) between autumn 1944 and spring 1945. It used the chassis of the
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The
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Image gallery of the SU-101 prototype displayed in the
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260:(СУ-101) while the 122 mm variant would have been designated
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Soviet armored fighting vehicle production during World War II
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World War II armoured fighting vehicles of the Soviet Union
308:, a regular SU-100 equipped with the 122 mm D-25S gun.
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The SU-101 prototype survived and is now preserved in the
1414:
List of armored fighting vehicles of the Soviet Union
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SU-102: 34.8 t (38.4 short tons; 34.3 long tons)
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1455:Self-propelled artillery of the Soviet Union
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426:The SU-101 prototype with the 100 mm
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462:, and even indirect-fire artillery, i.e.
536:Boldyrev, Evgenij (September 19, 2005),
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343:and preparation of one prototype each.
450:The Russian designation "SU", meaning
1450:World War II self-propelled artillery
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1325:Experimental and improvised vehicles
209:(Уралмаш-1) was a Soviet prototype
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252:, the other with the 122 mm
386:The Uralmash-1 was a turretless
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419:tank destroyer as well as the
299:Commissariat of Heavy Industry
297:technical review board of the
16:Self-propelled gun (prototype)
1:
1424:List of Soviet tank factories
23:Uralmash-1 (SU-101 / SU-102)
1445:World War II tank destroyers
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1211:Armored Artillery tractors
607:armoured fighting vehicles
199:54 km/h (33 mph)
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435:. The bigger 122 mm
413:rolled homogeneous armour
301:for further examination:
268:, or self-propelled gun.
226:armoured fighting vehicle
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55:Place of origin
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856:Self-propelled artillery
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464:self-propelled howitzers
1218:AT-42 artillery tractor
862:Guns and anti-tank guns
544:The Russian Battlefield
131:Front 90 mm / 27°
468:armour-piercing rounds
458:, infantry-supporting
452:Samokhodnaya Ustanovka
382:Design characteristics
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266:Samokhodnaya Ustanovka
72:Uralmash design bureau
397:of the Ferdinand sort
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152:SU-102: 122 mm
147:SU-101: 100 mm
539:САУ СУ-101 и СУ-102
372:Kubinka Tank Museum
272:Development history
37:Kubinka Tank Museum
1247:Artillery tractors
1204:Artillery tractors
918:Anti-aircraft guns
341:technical drawings
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211:self-propelled gun
94:SU-101: 34.1
63:Production history
48:Self-propelled gun
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981:Armored cars
611:World War II
548:, retrieved
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215:World War II
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1228:Komsomolets
217:. It was a
188:Torsion bar
50:(prototype)
1439:Categories
1377:Improvised
679:Amphibious
550:January 3,
478:References
349:Uralmash-1
324:SU-100-M-2
318:SU-100-M-1
219:turretless
207:Uralmash-1
184:Suspension
100:short tons
35:SU-101 in
1358:T-43 tank
1233:Komintern
1135:Aerosleds
1128:Aerosleds
815:IS-2/IS-3
810:KV-1/KV-2
758:T-70/T-80
712:BT-2/BT-5
663:Tankettes
437:D-25S gun
433:hull-down
401:Ferdinand
331:SU-122-44
161:Secondary
104:long tons
81:1944-1945
1269:Kommunar
440:layout.
388:casemate
246:Red Army
234:Uralmash
163:armament
143:armament
78:Designed
68:Designer
1394:NI tank
1384:KhTZ-16
1162:ASD-400
909:ISU-152
904:ISU-122
472:ISU-122
417:ISU-152
312:ESU-100
306:SU-122P
232:-based
223:tracked
102:; 33.6
1348:SU-101
1223:T-26-T
1152:NKL-26
1147:NKL-16
1142:ANT-IV
1043:Medium
925:ZSU-37
899:SU-152
894:SU-122
889:SU-100
869:ZiS-30
767:Medium
652:Soviet
604:Soviet
376:Moscow
286:SU-100
262:SU-102
258:SU-101
242:SU-100
179:V-2-44
176:Engine
98:(37.6
1343:SU-14
1284:YA-12
1279:STZ-5
1274:STZ-3
1086:BA-11
1079:Heavy
1070:BA-10
1050:BA-27
1034:BA-30
1019:BA-64
1014:BA-20
987:Light
935:T-70Z
930:T-60Z
884:SU-85
879:SU-76
798:Heavy
731:Light
686:T-37A
655:tanks
428:D-10S
154:D-25S
149:D-10S
127:Armor
1338:S-51
1157:RF-8
1065:BA-6
1060:BA-3
1055:BA-I
1029:PB-7
1024:PB-4
1004:D-13
999:D-12
940:T-90
874:SU-5
805:T-35
789:T-44
784:T-43
779:T-34
774:T-28
753:T-60
748:T-50
743:T-26
738:T-18
722:BT-8
717:BT-7
705:Fast
696:T-40
691:T-38
670:T-27
552:2013
445:DShK
421:IS-2
392:T-44
290:T-34
238:T-44
205:The
169:DShK
141:Main
113:Crew
91:Mass
44:Type
1009:FAI
994:D-8
609:of
374:in
106:)
1441::
1389:IZ
542:,
486:^
221:,
1318:e
1311:t
1304:v
1196:e
1189:t
1182:v
1120:e
1113:t
1106:v
974:e
967:t
960:v
849:e
842:t
835:v
644:e
637:t
630:v
596:e
589:t
582:v
116:4
96:t
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