# Troposphère 4
**Wikidata**: [Q116186824](https://www.wikidata.org/wiki/Q116186824)  
**Source**: https://4ort.xyz/entity/troposphere-4

## Summary
Troposphère 4 was a Congolese suborbital rocket developed as part of the Troposphère family, first launched in 2008. It was a 16-centimeter-diameter vehicle with a mass of 250 kilograms, reaching a maximum altitude of 15,000 meters and a speed of Mach 2.7.

## Key Facts
- Part of the Troposphère rocket family, developed by Keka Aerospace in the Democratic Republic of the Congo
- First launched on July 10, 2008, and retired on the same date
- Mass: 250 kilograms
- Diameter: 16 centimeters
- Maximum altitude: 15,000 meters
- Speed: Mach 2.7
- Maximum thrust: 1,000 kilogram-force
- Payload mass: 0 kilograms (no payload capacity)
- Preceded by Troposphère 3 and succeeded by Troposphère 5
- Launched from Menkao Launch Base

## FAQs
### Q: What was the purpose of Troposphère 4?
A: Troposphère 4 was a suborbital rocket designed to test atmospheric flight and serve as a precursor to more advanced Troposphère models.

### Q: Who developed Troposphère 4?
A: The rocket was developed by Keka Aerospace, a Congolese aerospace company, as part of the Troposphère program.

### Q: How did Troposphère 4 compare to its predecessors and successors?
A: Troposphère 4 followed Troposphère 3 and was succeeded by Troposphère 5, representing an evolution in the Congolese rocket program.

### Q: What were the key specifications of Troposphère 4?
A: The rocket had a mass of 250 kg, a diameter of 16 cm, a maximum altitude of 15,000 meters, and a speed of Mach 2.7.

### Q: Where was Troposphère 4 launched?
A: The rocket was launched from Menkao Launch Base in the Democratic Republic of the Congo.

## Why It Matters
Troposphère 4 was a significant milestone in the development of Congolese aerospace technology. As part of the Troposphère family, it contributed to the country's efforts to establish a domestic space program. The rocket's successful launch and subsequent retirement marked a step forward in understanding atmospheric flight and paving the way for more advanced models like Troposphère 5. Despite its short operational lifespan, Troposphère 4 played a crucial role in advancing the capabilities of Keka Aerospace and the broader Congolese space sector.

## Notable For
- First Troposphère rocket to achieve Mach 2.7 speed
- One of the smallest rockets in the Troposphère family at 16 cm in diameter
- Operated from Menkao Launch Base, a key site in Congolese space activities
- Part of a family of rockets that helped establish Keka Aerospace as a leader in Congolese aerospace
- Served as a testbed for atmospheric flight technologies

## Body
### Development and Launch
Troposphère 4 was developed by Keka Aerospace, a Congolese aerospace company, as part of the Troposphère rocket family. The rocket was first launched on July 10, 2008, and retired on the same date. It was designed to test atmospheric flight and serve as a precursor to more advanced models.

### Specifications
Troposphère 4 had a mass of 250 kilograms and a diameter of 16 centimeters. It reached a maximum altitude of 15,000 meters and a speed of Mach 2.7. The rocket had a maximum thrust of 1,000 kilogram-force and a payload mass of 0 kilograms, indicating it was not designed to carry any payload.

### Context Within the Troposphère Family
Troposphère 4 was preceded by Troposphère 3 and succeeded by Troposphère 5, representing an evolution in the Congolese rocket program. The rocket was launched from Menkao Launch Base, a key site in Congolese space activities.

### Significance
Troposphère 4 played a crucial role in advancing the capabilities of Keka Aerospace and the broader Congolese space sector. Its successful launch and subsequent retirement marked a step forward in understanding atmospheric flight and paving the way for more advanced models like Troposphère 5.

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  "@type": "Thing",
  "name": "Troposphère 4",
  "description": "A Congolese suborbital rocket developed as part of the Troposphère family, launched in 2008.",
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## References

1. [Source](https://wemakeit.com/projects/congolese-space-rocket)