# NOTS-EV-2 Caleb

> U.S. military expendable launch system

**Wikidata**: [Q6954966](https://www.wikidata.org/wiki/Q6954966)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/NOTS-EV-2_Caleb)  
**Source**: https://4ort.xyz/entity/nots-ev-2-caleb

## Summary
The NOTS-EV-2 Caleb was a U.S. military expendable launch system developed by the United States Navy. Classified as both a rocket model and a weapon model, it served as an aerial rocket and anti-satellite weapon. It is also known by the aliases NOTS-500, Hi-Hoe, and SIP.

## Key Facts
*   **Manufacturer:** United States Navy
*   **Country of Origin:** United States
*   **Aliases:** NOTS-500, Hi-Hoe, SIP
*   **Classification:** Rocket model, weapon model, expendable launch vehicle
*   **Function:** Aerial rocket, anti-satellite weapon
*   **Predecessor:** NOTS-EV-1 Pilot
*   **Type:** Expendable launch system (expended after use)

## FAQs
### Q: What was the primary purpose of the NOTS-EV-2 Caleb?
A: The NOTS-EV-2 Caleb was designed as an expendable launch system and an anti-satellite weapon. It was developed by the United States Navy as an aerial rocket capable of being expended after use.

### Q: What other names is the NOTS-EV-2 Caleb known by?
A: The system is also known by the designations NOTS-500, Hi-Hoe, and SIP.

### Q: What launch system preceded the NOTS-EV-2 Caleb?
A: The NOTS-EV-2 Caleb was preceded by the NOTS-EV-1 Pilot, another U.S. expendable launch system.

## Why It Matters
The NOTS-EV-2 Caleb represents a specific era of United States Navy development regarding space and defense capabilities. As a weapon model classified as an anti-satellite weapon, it illustrates the military's historical efforts to develop technologies for space control and defense. Its development by the Navy highlights the branch's involvement in aerospace projects beyond maritime operations. Furthermore, as an expendable launch vehicle, it contributed to the lineage of U.S. launch systems that followed the NOTS-EV-1 Pilot, advancing the capabilities of aerial rockets and space launch vehicles within the military sector.

## Notable For
*   **Multi-Role Classification:** Uniquely classified as both an aerial rocket and an anti-satellite weapon while serving as an expendable launch vehicle.
*   **Navy Development:** Distinguished as a rocket and weapon model manufactured directly by the United States Navy rather than a private contractor.
*   **Lineage:** Serves as the successor to the NOTS-EV-1 Pilot in the series of U.S. expendable launch systems.
*   **Nomenclature:** Known by several distinct aliases, including "Hi-Hoe" and "SIP," reflecting its various design stages or applications.

## Body

### Overview and Development
The NOTS-EV-2 Caleb is a rocket model and weapon model of United States origin. Manufactured by the United States Navy, this system was designed as an expendable launch vehicle, meaning it was intended for one-time use and expended after launch.

### Technical Classification
The Caleb is technically defined by several key classifications:
*   **Instance of:** Rocket model, Weapon model
*   **Subclass of:** Expendable launch vehicle, Aerial rocket, Anti-satellite weapon

These classifications indicate that the system was versatile, capable of functioning as a space launch vehicle while also serving specific military roles as an aerial rocket and a weapon designed to target satellites.

### Mission History and Lineage
The NOTS-EV-2 Caleb follows the NOTS-EV-1 Pilot in the sequence of U.S. expendable launch systems. While the NOTS-EV-1 Pilot established the class, the Caleb continued the development of these military launch systems. The system is documented across Wikimedia Commons and English Wikipedia, serving as a subject of military and aerospace historical records.