# HYFLEX

> Japanese prototype of 1996 for testing atmospheric reentry

**Wikidata**: [Q3078292](https://www.wikidata.org/wiki/Q3078292)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/HYFLEX)  
**Source**: https://4ort.xyz/entity/hyflex

## Summary
HYFLEX is a Japanese sub-orbital spaceplane prototype developed in 1996 for testing atmospheric reentry. It was launched from the Tanegashima Space Center using the J-I solid-fuel rocket and served as a follow-up to the OREX re-entry demonstrator.

## Key Facts
- **Type**: Sub-orbital spaceplane and lifting body
- **Launch date**: February 11, 1996
- **Launch vehicle**: J-I (Japanese solid-fuel rocket)
- **Operator**: National Space Development Agency of Japan
- **Preceded by**: OREX (Japanese re-entry demonstrator prototype)
- **Followed by**: ALFLEX (not detailed in source material)
- **Part of**: HOPE (functional programming language, unrelated to HYFLEX)
- **Country of origin**: Japan
- **Aliases**: Hypersonic Flight Experiment
- **Wikipedia title**: HYFLEX

## FAQs
### Q: What was the purpose of HYFLEX?
A: HYFLEX was designed to test atmospheric reentry technologies for sub-orbital spaceplanes. It was launched in 1996 as part of Japan's spaceflight research.

### Q: Who operated HYFLEX?
A: The National Space Development Agency of Japan was responsible for the operation of HYFLEX.

### Q: What was the launch vehicle for HYFLEX?
A: HYFLEX was launched using the J-I solid-fuel rocket from the Tanegashima Space Center.

### Q: What preceded HYFLEX?
A: HYFLEX followed the OREX re-entry demonstrator prototype, another Japanese experimental spaceplane.

### Q: Is HYFLEX related to the HOPE programming language?
A: No, HYFLEX is unrelated to HOPE. The connection is purely based on the same name in the source material.

## Why It Matters
HYFLEX played a crucial role in Japan's early efforts to develop reusable spaceflight technology. As a sub-orbital spaceplane, it focused on atmospheric reentry, a critical phase for any vehicle returning from space. The prototype helped validate designs for future reusable spacecraft, contributing to Japan's broader space exploration ambitions. While it may not have achieved orbital flight, HYFLEX provided valuable data for hypersonic flight and re-entry systems, influencing later Japanese space programs.

## Notable For
- **First Japanese sub-orbital spaceplane prototype** (1996)
- **Tested atmospheric reentry for reusable spacecraft**
- **Launched on the J-I rocket from Tanegashima Space Center**
- **Followed the OREX re-entry demonstrator**
- **Operated by the National Space Development Agency of Japan**

## Body
### Overview
HYFLEX was a Japanese experimental spaceplane developed in 1996. It was classified as a sub-orbital spaceplane and a lifting body, designed to test atmospheric reentry technologies.

### Development and Launch
- **Launch date**: February 11, 1996
- **Launch vehicle**: J-I solid-fuel rocket
- **Launch site**: Tanegashima Space Center
- **Operator**: National Space Development Agency of Japan

### Preceding and Succeeding Projects
- **Preceded by**: OREX (Japanese re-entry demonstrator prototype)
- **Followed by**: ALFLEX (not detailed in source material)

### Classification and Function
- **Type**: Sub-orbital spaceplane and lifting body
- **Purpose**: Testing atmospheric reentry for reusable spacecraft

### Related Entities
- **Part of**: HOPE (functional programming language, unrelated to HYFLEX)

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  "description": "Japanese sub-orbital spaceplane prototype for testing atmospheric reentry in 1996.",
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## References

1. Freebase Data Dumps. 2013