# Sojuz | Sojuz 7K-T No.39 (Sojuz 18a / Sojuz 18-1)

**URL:** <https://www.forumastronautico.it/t/sojuz-sojuz-7k-t-no-39-sojuz-18a-sojuz-18-1/33058>\
**Category:** Archivio lanci\
**Tags:** sojuz, lanci-cccp, lanci-con-equipaggio, lanci-1975, lanci-falliti, roskosmos\
**Created:** [4 Aprile 1975, 11:04am UTC](https://www.forumastronautico.it/t/sojuz-sojuz-7k-t-no-39-sojuz-18a-sojuz-18-1/33058 "1975-04-04T11:04:54Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![astronautibot](https://www.forumastronautico.it/user_avatar/www.forumastronautico.it/astronautibot/32/97479_2.png) [@astronautibot](https://www.forumastronautico.it/u/astronautibot)\
**Post date:** [4 Aprile 1975, 11:04am UTC](https://www.forumastronautico.it/t/sojuz-sojuz-7k-t-no-39-sojuz-18a-sojuz-18-1/33058/1 "1975-04-04T11:04:54Z")

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> **Sojuz | Sojuz 7K-T No.39 (Sojuz 18a / Sojuz 18-1)**
>
> **Starts:** 5 Aprile 1975, 11:04am (Etc/UTC)\
> **Location:** www.openstreetmap.org/#map=17/45.9200000/63.3420000&layers=N

### Informazioni sulla missione

| | |
| --- | --- |
| Lancio | 1975-04-05T11:04:54 |
| Esito | **FALLIMENTO** |
| Tipo missione | Esplorazione umana |
| Orbita | Orbita bassa terrestre (LEO) |
| Rampa | 1/5, Cosmodromo di Baykonur, Repubblica del Kazakistan (KAZ) [🗺](http://www.openstreetmap.org/?mlat=45.92&mlon=63.342&zoom=20) |

### Equipaggio

| ↑↓ | Nome | &nbsp; | Affiliazione | Ruolo |
| --- | --- | --- | --- | --- |
| ↑↓ | [Oleg Grigoryevich Makarov](https://www.forumastronautico.it/t/33430) | 🇷🇺 | RFSA | Ingegnere di volo |
| ↑↓ | [Vasily Lazarev](https://www.forumastronautico.it/t/33476) | 🇷🇺 | RFSA | Comandante |

### Veicolo spaziale

| | |
| --- | --- |
| Nome | [Sojuz 7K-T No.39](https://www.forumastronautico.it/t/None) seriale Soyuz 7K-T 11F615A8 #39 |
| Destinazione | Salyut 4 |
| Configurazione | Soyuz |
| Trasporto equipaggi | Sì |
| Dimensioni | altezza 7,48 m  
diametro 2,72 m |
| Numero passeggeri | Fino a 3 persone |
| Capacità di carico | - kg |

### Lanciatore

| | |
| --- | --- |
| Nome | Soyuz[Wiki](https://en.wikipedia.org/wiki/Soyuz_(rocket)) |
| Costruttore | Russian Federal Space Agency (ROSCOSMOS) [Wiki](https://en.wikipedia.org/wiki/Russian_Federal_Space_Agency) [Info](https://en.roscosmos.ru/) |
| Fornitore servizi di lancio | Soviet Space Program [Wiki](https://en.wikipedia.org/wiki/Soviet_space_program) |
| Primo volo | 1966-11-28 |
| Numero stadi | - |
| Altezza | - |
| Diametro | - |
| Peso al lancio | - |
| Spinta al decollo | - |
| Capacità di carico | LEO: -  
GTO: - |
| Successi/Lanci totali | 30/32 (3 consecutivi) |
| Booster | None |

Ultimo aggiornamento: 2026-09-09T22:18:02 con AstronautiBOT 2026.09.07 - Fonte: [LaunchLibrary2 API](https://ll.thespacedevs.com/2.2.0/launch/c9e8af62-07b9-482f-8b3f-9c8e3d1400f0/?format=json)

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<div class="post-metadata">

**Author:** ![astronautibot](https://www.forumastronautico.it/user_avatar/www.forumastronautico.it/astronautibot/32/97479_2.png) [@astronautibot](https://www.forumastronautico.it/u/astronautibot)\
**Post date:** [4 Aprile 1975, 11:05am UTC](https://www.forumastronautico.it/t/sojuz-sojuz-7k-t-no-39-sojuz-18a-sojuz-18-1/33058/2 "1975-04-04T11:05:05Z")

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Soyuz 7K-T No.39, also known as Soyuz 18a or Soyuz 18-1, was intended to be the next crewed mission to the Salyut-4 space station. The mission launched on April 5, 1975, 11:04:54 UTC, but due to a failure of the Soyuz launch vehicle during ascent it was aborted. Safety system initiated separation of the spacecraft, and the crew of commander Vasili Lazarev and flight engineer Oleg Makarov experienced overloads of up to 21.3 g.  
The capsule landed safely at 11:26:21 UTC, followed by a successful rescue of the crew members.