# Mu

> series of Japanese solid-fueled carrier rockets

**Wikidata**: [Q218381](https://www.wikidata.org/wiki/Q218381)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mu_(rocket_family))  
**Source**: https://4ort.xyz/entity/mu

## Summary
Mu is a series of Japanese solid-fueled carrier rockets developed between 1966 and 2006. It was a family of expendable launch vehicles, with multiple variants including M-V, M-3C, M-3S, M-4S, M-3H, and M-3S2. The program succeeded the Lambda rocket series and was designed to support Japan's space exploration efforts.

## Key Facts
- **Type**: Series of Japanese solid-fueled carrier rockets
- **Country of Origin**: Japan
- **Start Time**: 1966
- **End Time**: 2006
- **Follows**: Lambda rocket series
- **Aliases**: ミュー計画, ABSOLUTE計画, M計画, Μロケット, Μ計画
- **Instance Of**: Rocket family
- **Subclass Of**: Expendable launch vehicle, solid-propellant rocket
- **Wikipedia Title**: Mu (rocket family)
- **Wikipedia Languages**: 13 languages (be, de, en, es, fa, fr, he, hi, hu, it, ja, ko, lb, pt, zh)
- **Commons Category**: M (rocket)
- **Sitelink Count**: 15
- **Freebase ID**: /m/05498d
- **Image**: [MuRockets.svg](https://commons.wikimedia.org/wiki/Special:FilePath/MuRockets.svg)

## FAQs
**What was the Mu rocket family?**
The Mu rocket family was a series of Japanese solid-fueled carrier rockets developed between 1966 and 2006. It included multiple variants like M-V, M-3C, and M-3S2, designed to support Japan's space exploration efforts.

**Which countries were involved in the Mu program?**
The Mu program was entirely developed and operated by Japan, with rockets launched from Japanese territory.

**What types of rockets were part of the Mu family?**
The Mu family included M-V, M-3C, M-3S, M-4S, M-3H, and M-3S2, all of which were solid-propellant rockets.

**What preceded the Mu rocket family?**
The Mu rocket family succeeded the Lambda series of Japanese rockets.

**How many languages has the Mu rocket family been documented in?**
The Mu rocket family has Wikipedia articles in 13 languages, including English, Japanese, and German.

## Why It Matters
The Mu rocket family played a crucial role in Japan's early space exploration efforts, providing a reliable means of launching satellites and scientific payloads. As a series of solid-fueled rockets, it offered simplicity and cost-effectiveness compared to liquid-fueled alternatives. The program's development spanned over four decades, contributing to Japan's growing capabilities in space technology. While it was eventually succeeded by more advanced launch vehicles, the Mu series laid the groundwork for future Japanese space missions.

## Notable For
- **First Japanese Solid-Fueled Rocket Family**: The Mu series was Japan's first dedicated family of solid-propellant rockets, distinct from earlier liquid-fueled designs.
- **Multiple Variants**: Included six distinct variants (M-V, M-3C, M-3S, M-4S, M-3H, M-3S2), each tailored for specific mission requirements.
- **Long Operational Period**: Operated from 1966 to 2006, spanning four decades of Japanese spaceflight.
- **Support for Scientific Missions**: Used to launch satellites and scientific payloads, including the Hiten lunar orbiter.
- **Legacy in Japanese Space Program**: Served as a foundational element in Japan's space infrastructure, influencing later launch vehicle designs.

## Body
### Overview
The Mu rocket family was a series of Japanese solid-fueled carrier rockets developed between 1966 and 2006. It succeeded the Lambda rocket series and included multiple variants, each designed for specific mission requirements. The program was entirely developed and operated by Japan, with rockets launched from Japanese territory.

### Variants
The Mu family consisted of six distinct variants:
- **M-V**: A Japanese solid-fuel rocket.
- **M-3C**: A Japanese carrier rocket.
- **M-3S**: A Japanese carrier rocket.
- **M-4S**: A Japanese carrier rocket.
- **M-3H**: A Japanese launch vehicle.
- **M-3S2**: A Japanese carrier rocket.

Each variant was optimized for different payloads and mission profiles, reflecting Japan's evolving space exploration goals.

### Historical Context
The Mu program began in 1966 and concluded in 2006, spanning four decades of Japanese spaceflight. It succeeded the Lambda series, which had been Japan's earlier rocket program. The Mu family was part of Japan's broader efforts to establish a national space capability, contributing to the launch of satellites and scientific missions.

### Technical Specifications
The Mu rockets were solid-propellant vehicles, offering simplicity and cost-effectiveness compared to liquid-fueled alternatives. They were designed to support a range of payloads, including scientific satellites and lunar missions like the Hiten orbiter. The program's development included advancements in solid rocket technology, which were later applied to other Japanese launch vehicles.

### Cultural and Linguistic Impact
The Mu rocket family has been documented in 13 languages, reflecting its international significance. It is also known by several aliases, including ミュー計画, ABSOLUTE計画, and M計画, highlighting its multifaceted identity. The program's legacy continues to influence Japan's space program, with its foundational contributions still visible in later launch vehicle designs.

### Related Entities
The Mu rocket family is closely associated with Japan, the country where it was developed and operated. It succeeded the Lambda series, another significant Japanese rocket program. The Mu family's development and operation were entirely within Japan, with no international collaborations documented in the provided material.

### Media and Documentation
The Mu rocket family has a Wikipedia article in multiple languages, including English, Japanese, and German. It is also featured in the Wikimedia Commons under the category "M (rocket)." The program's documentation includes technical details, mission profiles, and historical context, making it a valuable resource for space history.

## References

1. Freebase Data Dumps. 2013