microcarfan
  • Invalid carriage
  • Soviet Union
  • Four wheels
  • Hand controls

SMZ S‑3A

Also known as S3A, С-3А, “Morgunovka”

Two seats, a fabric hood, a 346 cc motorcycle engine at the back and every control worked by hand: the first four-wheeled Soviet invalid carriage. More than 200,000 were built at Serpukhov and issued free, five years at a time, to disabled veterans of the Second World War.

Bright red microcar with a black folding hood, parked on a paved square in sunshine.
A red S‑3A with its hood up at the Auto-moto exotica show in Donetsk, 2018.Photo: Andrey Butko, CC BY-SA 4.0, via Wikimedia Commons

At a glance

The spec plate

SMZ S‑3A

S‑3A · Serpukhov

Built
1958–⁠1970Paused in 1965; resumed on 1 January 1966
Country
Soviet UnionSerpukhov, Moscow region
Maker
Serpukhov Motorcycle Works (SMZ)Renamed the Serpukhov Automobile Works, SeAZ, in 1988/89
Engine
346 cc two-stroke singleAn IZh motorcycle engine, cooled by a fan; IZh-56 from 1962
Power
about 8 hpSources range from 7.3 to 13 hp; about 10 hp for the S‑3AM
Length
2,625 mm1,316 mm wide, 1,380 mm high
Weight
425 kgKerb weight; 425–455 kg by type of controls
Seats
2Side by side
Wheels
4Rear engine driving the rear wheels; every control worked by hand
Production
203,2911958–⁠70, every version, from Kanunnikov’s reference book
Survives
YesIn museums; no count has been found
Top speed
60km/h60 km/h37 mph; one later history says 40–50 km/h

How big is it?

True proportion

2.62 m

It is 345 mm shorter than a Fiat 500, about 1.5 adults laid end to end, and twice the length of a Peel P50.

  • 1.32 m wide
  • 425 kg: about six adults
  • Two seats side by side, and room behind for 10 kg of luggage
Drawn at true proportion. The track is 3.6 metres long; the adult stands at the same scale. The Peel P50 is the smallest production car, on every page for comparison.

The story

History

The Soviet Union came out of the Second World War with more than 2 million disabled veterans, or 2.5 million by another count.source 1source 2 From 1947 the Kiev Motorcycle Works built them a three-wheeler with no doors and no roof, based on the German Wanderer motorcycle, with a 98 cc engine of 2.3 hp; more than 7,000 were made in 1951 alone. Production then moved to Serpukhov, in the Moscow region, to a works that had begun as the workshops of a juvenile colony in a former almshouse and had made spoons and horseshoes in the war.source 2

Serpukhov’s first carriage, the S‑1L, had three wheels, a fabric top, one headlamp, a motorcycle handlebar and a 123 cc Moskva engine of 3.6 to 4.15 hp. It braked on its rear wheels only and reached 30 km/h (19 mph). A tinsmith and a welder assembled each body on its tube frame in four or five days, and the first 30 saleable cars were ready by 1 May 1953; there were versions for drivers with the use of only the right or only the left hand.source 2source 3source 4 The S‑3L of 1956 brought a 346 cc IZh-49 engine and a Moskvich electric starter.source 2source 4 Russian Wikipedia counts 19,128 S‑1Ls and 17,053 S‑3Ls; Za Rulyom says more than 48,000 three-wheelers in all.source 4source 2 They were unstable, above all on cobbles and in winter ruts, and the veterans bombarded the newspapers with complaints.source 3

Four wheels, on trial

In January 1956 the Council of Ministers called for a four-wheeled motor carriage, by a directive weaker than a decree; the ministry’s own order took another 11 months. The Serpukhov works led the project, with NAMI among its partners.source 3 NAMI, under Boris Fitterman, built several prototypes, and one, the NAMI-031, with a closed plastic body, was used to develop the front suspension and the steering.source 2source 5 The S‑3A prototype had its own name, Nara.source 2

Three prototypes of different designs began trials on 22 July 1957. NAMI’s passenger-car testers measured them against a West German Goggomobil, with a Lloyd 600 and a Citroën 2CV alongside, over roads that were half cobbles and gravel. The Goggomobil weighed only 2 kg more, but had a 293 cc twin of 14 hp against the Soviet car’s 7.3 hp single, and it won on almost every count. The Soviet engines overheated until the iron cylinder gave way to an aluminium one, their pistons seized, and their rings coked after 2,900 km (1,800 miles). They drank 6.58 and 7.23 litres per 100 km where the factory had promised 4.5. Wheel discs broke, and so did one car’s frame, at 4,000 km. From 50 km/h (31 mph) the S‑3A needed 31.5 m (103 ft) to stop; the Goggomobil needed 8.5 m.source 3

«…указанные величины тормозного пути колясок С3А являются весьма великими и не могут обеспечить безопасного движения как в городском, так и в загородном режимах, в связи с чем тормозные качества мотоколясок не могут быть признаны удовлетворительными».

NAMI’s passenger-car test sector, report on the trials of the S3A carriages, 1957, as quoted by drom.ru. In English: “the stated braking distances of the S3A carriages are very great and cannot ensure safe driving in either town or country conditions, so the braking qualities of the carriages cannot be recognised as satisfactory.”source 3

Several disabled people took part in the trials as experts, mostly on ergonomics, and what they asked for above all was a proper roof, a heater and less noise and vibration. Before production the front coil springs gave way to torsion bars. When the full cycle of 15,000 km ended on 21 December 1957, NAMI recommended production “after elimination of all defects”, a formula, drom.ru observes, that bound the factory to nothing.source 3

What it was

The S‑3A that went into production in 1958 was, in drom.ru’s reading of the archive, essentially a four-wheeled S‑3L with an electric starter.source 3 Its open two-door body was steel sheet on a tubular space frame, under a fabric hood. Behind the two seats was room for 10 kg of luggage and the rear-mounted engine, the fan-cooled IZh-49 motorcycle single.source 5source 1source 3 In place of pedals there were levers behind a car-type steering wheel, so that it could be driven entirely by hand.source 3source 2

Underneath, it was more modern than it looked. Kanunnikov counts it the first Soviet production car with rack-and-pinion steering, which no Soviet car used again until the VAZ-2108 of 1984, and the first with independent front suspension on transverse torsion bars, of the Volkswagen and Porsche kind; the rear was independent too.source 1source 2 The rest was primitive. The brakes were mechanical drums on the rear wheels only, the fabric roof barely kept out the weather, there was no heater, and more than 50 points needed grease.source 5source 1source 3

It was issued, not sold. Veterans in disability groups I and II received an S‑3A free from the social-security offices for five years, with an obligatory overhaul after two and a half, and could neither buy nor sell one; the state also paid for fuel, servicing and repairs, by Za Rulyom’s account.source 2source 3 drom.ru says that for many drivers the little Serpukhov car became not only a way to fit into normal life but the very meaning of life, and Kanunnikov counts the carriages among the most humane things the Soviet state did for its citizens.source 3source 2

Black-and-white winter street scene: a snowy bank, bare trees, a tram in the distance and a small open car and saloon on the road.
Plate I · 1961 An S‑3A in the traffic on Rozhdestvensky Boulevard, Moscow, in the winter of 1961.Photo: Fortepan / Dobóczi Zsolt, CC BY-SA 3.0, via Wikimedia Commons

«Мотоколяски были далеки от вершин автомобильного прогресса почти так же, как биплан У‑2 от современного истребителя. Но главное — они были!»

Sergei Kanunnikov, Za Rulyom, 11 November 2022. In English: “The motor carriages were almost as far from the summits of automotive progress as the U‑2 biplane is from a modern fighter. But the main thing is: they existed!”source 2

Twelve years at Serpukhov

The S‑3B of 1959–⁠62 (or 1960–⁠61), for drivers with one arm and one leg, accounted for 7,819 cars.source 5 In 1962 the S‑3AM brought rubber joints in the half-shafts, a better silencer and hydraulic telescopic dampers, and an IZh-56 engine went in.source 5source 1 Its power is a muddle. Sources give 7.3 to 8.5 hp for the S‑3A and about 10 for the S‑3AM; the 11.5 and 13 hp in one 2023 article look like the motorcycle’s own ratings rather than the carriage engine’s, which is our reading.source 5source 6source 2source 1 In 1965 production stopped, partly because the car took so much hand labour that it cost almost as much to make as a Moskvich-407, and because hand-controlled Zaporozhets cars were now available. But the Zaporozhye works could not build enough of them, and demand brought the S‑3A back on 1 January 1966.source 2source 3

Closed successors were tried and dropped: the hard-roofed S‑4A of 1959, the S‑4B coupé and the glass-fibre S‑5A of 1960, and in 1962 the SMZ-NAMI-086 “Sputnik”, with its engine across the tail.source 5source 2 None went into production, and in 1970 the S‑3A gave way to the closed, steel-bodied SMZ S‑3D.source 5source 2

It drove, one writer says, but not very well: its small wheels made it useless off the road, side glazing came only later, and at 50–60 km/h the engine was literally deafening.source 7 Russian Wikipedia judges it an unhappy compromise, too heavy and costly at 425 kg for a motorised wheelchair and too slow and rough for a car, though it gives no source for most of that verdict.source 5

“Morgunovka”

The name it is known by today comes from a comedy, one of the microcars on screen that tens of millions saw. In Leonid Gaidai’s Operation Y and Shurik’s Other Adventures of 1965, three rogues ride in a grey S‑3A, and the stout Byvaly, played by Yevgeny Morgunov, lifts it and turns it round by hand before all three climb in and drive off.source 2source 3source 7 Za Rulyom says the carriages were mocked “especially after” the film.source 2 Whether anyone in the Soviet years called the car a morgunovka is doubted: a drom.ru reader recalled the word as the name of a motorcycle helmet, and the nickname may be a later one.source 3 The everyday word was invalidka, used for all the Serpukhov carriages.source 5

A pale pink open four-wheeled microcar and a tan bulbous three-wheeler side by side on a lit museum plinth.
A 1967 S‑3AM beside the 1954 S‑1L three-wheeler that came before it, in the Riga Motor Museum in 2022.Photo: Nenea hartia, CC BY-SA 4.0, via Wikimedia Commons
Red open microcar from the side, its door swung wide to show a black vinyl seat and hand-control levers.
A red S‑3A with its door open at the UMMC museum, Verkhnyaya Pyshma, in 2024: the bench, the steering wheel and the levers behind it.Photo: MBH, CC BY 4.0, via Wikimedia Commons

Pictures

More photographs, old and new

Variants

From prototype to S‑3AM

The S‑3A and its relatives
VariantYearsWhat differsHow many
Trial cars (“Nara”)1957Three prototypes of different design; No. 2, with a reworked S‑3L body, set the production look3
S‑3A1958–⁠62Open body, fabric top, hand controlsWithin the 203,291
S‑3ABc. 1958–⁠62Rack-and-pinion steering and side windows, in Russian Wikipedia’s wordingNot recorded
S‑3B1959–⁠62 or 1960–⁠61For drivers with one arm and one leg7,819
S‑3AM1962–⁠70Rubber joints in the half-shafts, a better silencer, hydraulic telescopic dampersWithin the 203,291
S‑4A, S‑4B, S‑5A1959–⁠60A hard roof, a closed coupé, glass-fibre panelsPrototypes only
SMZ-NAMI-086 “Sputnik”1962Closed body, a 0.5 litre 14 hp engine across the tail, four speedsPrototypes only

Specification

S‑3A and S‑3AM, from Russian Wikipedia and Za Rulyom unless noted

Engine and drive

Engine and drive
EngineIZh-49 motorcycle single, a copy of the DKW NZ 350; two-stroke, fan-cooledsource 5source 1IZh-56 from 1962
Capacity346 cc (72 × 85 mm)
Power8 hp at 3,200 rpmsource 57.3 hp in the 1957 trials; 11.5 and 13 hp quoted later look like the motorcycle’s ratings
FuelPetrol and oil mixed 20 to 1source 3
GearboxFour speedssource 5source 1How reverse was engaged has not been found
Final driveBy chain, kept despite the 1957 advice to replace itsource 3

Body and chassis

Body and chassis
BodyOpen, two doors, steel sheet on a tubular space frame, fabric hood
Front suspensionIndependent, two transverse torsion bars and four trailing arms, of Volkswagen type
Rear suspensionIndependent, coil springssource 1source 2
SteeringRack and pinionsource 1source 2
BrakesMechanical drums, on the rear wheels onlysource 5source 1
Tyres5.00-10

Dimensions

Dimensions
Length2,625 mmsource 5source 12,650 mm by the Weiner museum
Width1,316 mm
Height1,380 mm
Wheelbase1,650 mm
Ground clearance170 mm
Weight425 kgsource 5source 1

Performance and running

Performance and running
Top speed60 km/hsource 5source 1“40–50 km/h” in one history
Consumption4.5–5 litres per 100 km, ratedsource 56.58–7.23 litres in the 1957 trials
Fuel tank12 litres
LubricationMore than 50 grease pointssource 3
PriceNone: issued free; it cost nearly as much to make as a Moskvich-407source 2

How many were built?

Every figure, with its source

203,291 built203,291 from 1958 to 1970, a figure that goes back to Sergei Kanunnikov’s reference book of 2007. Every other count is compatible with it as a rounding. No figures by year have been found.

  1. 203,291all S‑3A versions, 1958–⁠70One source

    Russian Wikipedia, citing Kanunnikov (2007) and Avtolegendy SSSR; Kanunnikov himself rounds it to “more than 203,000”source 5source 2

  2. more than 200,000all S‑3AsTwo sources agree

    Za Rulyom; drom.rusource 1source 3

  3. more than 48,000the Serpukhov three-wheelers before itOne source

    Za Rulyom, 2022source 2

  4. 36,18119,128 S‑1Ls and 17,053 S‑3Ls, 1952–⁠58One source

    Russian Wikipedia’s page on the three-wheelerssource 4

  5. 7,819S‑3Bs, for drivers with one arm and one legOne source

    Russian Wikipediasource 5

  • Two sources agreetwo good sources give the figure
  • One sourcea good source, alone
  • Unconfirmeda lead only, not yet checked

Famous for

Three points

  1. Four wheels at last

    The first Soviet four-wheeled invalid carriage, built because veterans had complained about the three-wheelers.

  2. Ahead underneath

    The first Soviet production car with rack-and-pinion steering and torsion-bar independent front suspension.

  3. Byvaly’s car

    Lifted and turned round by hand in Gaidai’s comedy of 1965, which gave it its nickname.

On screen

Confirmed appearances only

An S‑3A in the Vadim Zadorozhny Technical Museum is captioned as Byvaly’s, but whether it is the car from the film has not been established.

Survivors and collecting

Today

Neither a survivor count nor an owners’ club has been found. They are museum pieces now: there are S‑3As in the Vadim Zadorozhny Technical Museum in the Moscow region, the Lomakovka museum of old cars and motorcycles in the Vladimir region and the Retro Car Museum, and a 1969 S‑3AM was shown at the Classic-Gala in 2021.source 8source 5 The Bruce Weiner Microcar Museum had one with hand controls and a hardtop, which it dated 1972, two years after production ended.source 9 Nor has any sale at a major auction been found. In 2010 the car was one of the 1:43 models in De Agostini’s Avtolegendy SSSR series, number 24.source 5

Pale blue open microcar with a number plate A 1-01, three costumed museum mannequins in and beside it before a street photomural.
A pale blue S‑3A with figures of the three rogues from the film, in the Vadim Zadorozhny Technical Museum in 2014.Photo: Alexxx1979, CC BY-SA 4.0, via Wikimedia Commons

Sources

Numbered as in the text

Most of the history rests on two writers: Sergei Kanunnikov of Za Rulyom, and Sergei Arbuzov of drom.ru, who worked from NAMI’s 1957 trial report. No period road test was read. Sources are given as plain text; the links are on the Credits page.

  1. Sergei Kanunnikov, “Primitivnaya, no peredovaya”, Za Rulyom, 8 August 2023.
  2. Sergei Kanunnikov, “Motokolyaski SSSR: polnaya istoriya”, Za Rulyom, 11 November 2022, three pages.
  3. Sergei Arbuzov, “Boevoe kreshchenie ‘Morgunovki’”, drom.ru, 23 May 2020, from NAMI’s 1957 report on the trials of the S3A carriages.
  4. Russian Wikipedia, СМЗ С-1Л/С-3Л. Used as a lead; it cites Nauka i zhizn 9/1980 and Kanunnikov (2007).
  5. Russian Wikipedia, СМЗ С-3А, read in full. Used as a lead; it cites Avtolegendy SSSR no. 24 (De Agostini, 2010) and S. V. Kanunnikov, Otechestvennye legkovye avtomobili 1896–⁠2000 (Za Rulyom, 2007).
  6. Sergei Kanunnikov, “Beshenaya taburetka, Kapsula smerti…”, Za Rulyom, 13 June 2020, sidebar on the GAZ-18 and the S‑3A.
  7. Aleksandr Potapov, “Rodnaya ‘invalidka’: istoriya sovetskoi motokolyaski SMZ S‑3D”, Avto Mail.ru.
  8. Russian Wikipedia, Операция «Ы» и другие приключения Шурика: cast, premiere, audiences and a museum photograph. Used as a lead.
  9. Bruce Weiner Microcar Museum, tour page “1972 SMZ”, read via the Internet Archive (2015).