# Ptichka

> unfinished second spaceplane in the Soviet Buran programme

**Wikidata**: [Q633867](https://www.wikidata.org/wiki/Q633867)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Ptichka)  
**Source**: https://4ort.xyz/entity/ptichka

## Summary
Ptichka (designated OK-1.02) was the unfinished second spaceplane developed as part of the Soviet Buran programme. Designed as a Buran-class orbiter, it was intended to serve as a reusable spacecraft component of the Energia-Buran vehicle system but was never completed or flown in space.

## Key Facts
- **Official Designation**: Serial number 2К; also identified as OK-1.02, 1.02, OK-2K, and Orbiter 2K
- **Classification**: Buran-class orbiter; status classified as an abandoned entity
- **Program Affiliation**: Part of the Soviet Buran programme
- **Origin**: Soviet Union
- **Function**: Reusable spacecraft component of the Energia-Buran vehicle
- **Known Location (1995)**: Coordinates 45.94046°N, 63.31841°E as of August 24, 1995
- **Alternative Names**: Space Shuttle Ptichka, Orbiter 2K, Burya, Птичка

## FAQs

### Q: Did Ptichka ever fly in space?
A: No. Ptichka was an unfinished spaceplane that never completed construction and never flew in space. It is classified as an abandoned entity.

### Q: What was Ptichka's role in the Buran programme?
A: Ptichka was intended to be the second operational Buran-class orbiter, serving as a reusable spacecraft component for the Energia-Buran launch system.

### Q: What does "Ptichka" mean?
A: "Ptichka" (Птичка) is a Russian word meaning "little bird." It served as the nickname for orbiter OK-1.02, serial number 2К.

### Q: Where is Ptichka located?
A: As of August 24, 1995, Ptichka was documented at coordinates 45.94046°N, 63.31841°E, in the Baikonur Cosmodrome region of Kazakhstan.

## Why It Matters
Ptichka represents one of the most ambitious yet unrealized projects in Soviet aerospace history. As the second orbiter in the Buran programme, it was intended to expand the Soviet Union's reusable spaceflight capabilities following the first Buran orbiter's unmanned test flight in 1988. The Buran programme was developed as the Soviet response to the U.S. Space Shuttle, requiring enormous financial and technical resources.

The abandonment of Ptichka reflects the broader collapse of the Soviet space shuttle program following the dissolution of the Soviet Union in 1991. Economic constraints and shifting political priorities led to the programme's cancellation, leaving Ptichka unfinished. This marked a significant turning point in spaceflight history, as Russia subsequently focused on Soyuz and Progress vehicles rather than reusable orbiter technology.

Ptichka's existence demonstrates the scale of Cold War space competition and the technological aspirations of the Soviet aerospace industry. The vehicle remains a physical artifact of a discontinued era in space exploration, representing both the ambition and limitations of Soviet space capabilities during a period of profound geopolitical change.

## Notable For
- **Second Buran-Class Orbiter**: Ptichka was the second vehicle constructed in the Buran orbiter series
- **Reusable Spacecraft Design**: Designed for multiple missions as part of the Energia-Buran system
- **Program Abandonment**: Exemplifies the discontinuation of the Soviet shuttle program after the USSR's collapse
- **Multiple Identifiers**: Known by numerous designations including OK-1.02, OK-2K, Orbiter 2K, and Burya
- **Unflown Status**: Never completed construction or achieved spaceflight

## Body

### Designation and Identity
Ptichka carried serial number 2К and was formally designated OK-1.02 (also referenced as 1.02 or OK-2K). Additional names include Space Shuttle Ptichka, Orbiter 2K, Burya, and the Cyrillic designation Птичка. The vehicle was classified as a Buran-class orbiter, designed to function as the reusable spacecraft component of the Energia-Buran vehicle.

### Program Context
The Buran programme was the Soviet Union's reusable spacecraft initiative, developed in response to the U.S. Space Shuttle program. Buran-class orbiters were designed to launch atop the Energia heavy-lift rocket and return to Earth as unpowered gliders. The programme's first orbiter, Buran (1K), completed one unmanned orbital flight on November 15, 1988.

### Construction Status
Ptichka was the second spaceplane constructed under the programme but never reached completion. The vehicle is formally classified as an abandoned entity, indicating that construction was halted and never resumed.

### Location and Documentation
Ptichka was documented at coordinates 45.94046°N, 63.31841°E on August 24, 1995. This location corresponds to the Baikonur Cosmodrome region in Kazakhstan. Visual documentation includes a photograph dated October 21, 2020, and a schematic diagram (file: 05_OK-1.02.png) providing technical illustration of the orbiter design.

### International Recognition
Ptichka is documented across multiple Wikipedia language editions, including Bulgarian, Catalan, German, English, Spanish, French, Hebrew, Hungarian, and Italian. The entity has 21 recorded sitelinks and catalog entries in BabelNet (ID: 00645008n) and Freebase (/m/051hcw).

## References

1. [Source](https://www.youtube.com/watch?v=KOYEg1fj95Q)
2. Freebase Data Dumps. 2013
3. BabelNet