# Titan 3B-2

> American rocket stage

**Wikidata**: [Q124163065](https://www.wikidata.org/wiki/Q124163065)  
**Source**: https://4ort.xyz/entity/titan-3b-2

## Summary
The Titan 3B-2 is an American rocket stage and a key component of the Titan rocket family, used primarily as a second stage in space launch vehicles. Developed in the United States, it played a critical role in supporting military and space missions. Its design emphasized reliability and performance, contributing to the success of the broader Titan program.

## Key Facts
- **Country of origin**: United States (reference: astronautix.com)  
- **Part of**: Titan rocket family (reference: astronautix.com)  
- **Subclass of**: Titan, rocket stage (reference: astronautix.com)  
- **Gross mass**: 37,560 kg (reference: astronautix.com)  
- **Dry mass**: 2,900 kg (reference: astronautix.com)  
- **Height**: 8.60 meters (reference: astronautix.com)  
- **Diameter**: 3.05 meters (reference: astronautix.com)  
- **Powered by**: LR-91 engine (reference: astronautix.com)  

## FAQs
### Q: What was the Titan 3B-2 used for?  
A: The Titan 3B-2 served as a second-stage rocket in launch vehicles, enabling payload deployment for U.S. space and military operations.  

### Q: What rocket family does the Titan 3B-2 belong to?  
A: It is part of the Titan rocket family, a series of American expendable launch systems.  

### Q: What engine powers the Titan 3B-2?  
A: The stage is equipped with the LR-91 engine, providing thrust for orbital maneuvers.  

## Why It Matters  
The Titan 3B-2 was integral to the U.S. space program, offering a reliable upper-stage solution for launching satellites, probes, and military payloads. As part of the Titan family—one of the most prolific rocket lines in American history—it contributed to advancements in space technology and national security. Its specifications, such as a high gross mass and powerful LR-91 engine, ensured efficient propulsion and payload capacity, underscoring its role in maintaining U.S. leadership in space exploration during the Cold War era.  

## Notable For  
- **LR-91 Engine**: Utilized a high-performance liquid-fueled engine for precise orbital insertion.  
- **Mass Efficiency**: Demonstrated significant propellant capacity (34,660 kg) relative to its dry mass.  
- **Titan Heritage**: Inherited design principles from earlier Titan models, ensuring compatibility and reliability.  
- **Military Applications**: Supported clandestine and strategic missions due to its integration with the Titan system.  

## Body  
### Specifications  
- **Gross Mass**: 37,560 kg (including propellant)  
- **Dry Mass**: 2,900 kg (post-burnout weight)  
- **Dimensions**: 8.60 m in height, 3.05 m in diameter  

### Propulsion  
- **Engine**: Single LR-91 liquid-fueled rocket engine  
- **Propellant**: Combination of Aerozine 50 and nitrogen tetroxide  

### Role in Titan Family  
- **Function**: Served as the second stage for Titan 3B configurations  
- **Compatibility**: Designed to integrate with Titan first stages and payload fairings  
- **Legacy**: Extended the operational lifespan of the Titan program through modular design  

### Operational Context  
- **Launch Sites**: Primarily operated from Cape Canaveral Air Force Station  
- **Mission Profile**: Supported payloads requiring high thrust and extended burn times for orbital placement  

### Design Features  
- **Materials**: Constructed with lightweight alloys to optimize mass-to-thrust ratios  
- **Guidance**: Incorporated inertial navigation systems for mid-course corrections  

All data sourced from astronautix.com.

## References

1. [Source](http://astronautix.com/t/titan3b-2.html)