# B1051

> expended Falcon 9 first-stage booster

**Wikidata**: [Q63978775](https://www.wikidata.org/wiki/Q63978775)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Falcon_9_booster_B1051)  
**Source**: https://4ort.xyz/entity/b1051

## Summary
B1051 was an expended Falcon 9 first-stage booster manufactured by SpaceX. As a member of the Falcon 9 Block 5 class, it successfully completed ten missions between March 2019 and May 2021, including the critical Crew Dragon Demo-1, before being expended in November 2022.

## Key Facts
- **Type:** Falcon 9 Block 5 first-stage booster (former entity).
- **Manufacturer:** SpaceX.
- **Serial Number:** B1051.
- **Total Missions:** 10 (Crew Dragon Demo-1, RADARSAT Constellation, SXM-7, and seven Starlink missions).
- **First Launch:** March 2, 2019 (Crew Dragon Demo-1).
- **Final Launch:** May 9, 2021 (Starlink).
- **Status:** Expended as of November 12, 2022.
- **Preceded by:** B1050 (scrapped booster).
- **Followed by:** B1052 (Falcon Heavy side booster).
- **Country of Origin:** United States.

## FAQs
### Q: What was the first mission flown by booster B1051?
A: B1051's first significant event was the launch of the Crew Dragon Demo-1 mission on March 2, 2019. This mission marked the first orbital flight of the Crew Dragon spacecraft.

### Q: How many times did B1051 fly?
A: According to the recorded significant events, B1051 flew a total of ten times. Its manifest included one crew test flight, a radar satellite constellation, a communications satellite (SXM-7), and seven dedicated Starlink missions.

### Q: When was B1051 expended?
A: B1051 was recorded as expended on November 12, 2022. While its final launch occurred in May 2021, the booster was officially dissolved or demolished on this later date.

## Why It Matters
B1051 serves as a prominent example of the durability and reusability capabilities of the SpaceX Falcon 9 Block 5 architecture. During its operational lifespan, it played a vital role in the deployment of SpaceX's Starlink constellation, conducting seven launches dedicated to expanding global internet coverage.

Furthermore, B1051 holds historical significance for its role in the Crew Dragon Demo-1 mission, the first orbital flight test of the Dragon 2 spacecraft. This mission was a critical milestone in restoring domestic human spaceflight capability to the United States and validating the spacecraft for future crewed missions. By completing ten flights before being expended, B1051 demonstrated the high flight lifespan achievable by the Block 5 booster design, contributing valuable data to the economics of reusable launch systems.

## Notable For
- **Demonstrating Longevity:** Completing ten orbital flights, contributing to the track record of the Falcon 9 Block 5 fleet.
- **Crew Dragon Debut:** Launching the Crew Dragon Demo-1 mission, a pivotal test for commercial crew transportation.
- **Starlink Deployment:** Serving as a workhorse for the Starlink mega-constellation with seven dedicated launches.
- **Block 5 Classification:** Representing the "current version" of the Falcon 9 orbital launch vehicle as defined in related data.

## Body

### Specifications and Classification
B1051 was a first-stage booster belonging to the Falcon 9 Block 5 class, the current version of SpaceX's orbital launch vehicle. Manufactured by SpaceX in the United States, its technical designation was B1051. It is classified as a "former entity" having been expended.

### Operational History
The booster's operational life began in early 2019. Its mission log includes a diverse range of payloads:
*   **2019:** Launched Crew Dragon Demo-1 (March 2) and the RADARSAT Constellation (June 12).
*   **2020:** Conducted four launches, three of which were for Starlink (January 29, April 22, August 7, October 18) and one for SXM-7 (December 13).
*   **2021:** Completed three final Starlink missions (January 20, March 14, May 9).

### Lineage and Fate
In the sequence of SpaceX boosters, B1051 was preceded by B1050 (a scrapped booster) and followed by B1052 (a Falcon Heavy side booster). After its tenth flight, the booster was not recovered for further use; it was officially documented as expended on November 12, 2022.

## Schema Markup
```json
{
  "@context": "https://schema.org",
  "@type": "Thing",
  "name": "B1051",
  "description": "An expended Falcon 9 Block 5 first-stage booster manufactured by SpaceX, known for completing ten missions including Crew Dragon Demo-1.",
  "sameAs": [
    "https://www.wikidata.org/wiki/Q61739317",
    "https://en.wikipedia.org/wiki/Falcon_9_booster_B1051"
  ],
  "additionalType": "Falcon 9 Block 5"
}

## References

1. Jonathan's Space Report