---
title: Pulse Detonation Engine
type: technology
url: "https://www.envisioning.com/research/altitude/pulse-detonation-engine"
hub: altitude
summary: Propulsion using controlled detonation waves instead of conventional combustion for higher efficiency
---

# Pulse Detonation Engine

Propulsion using controlled detonation waves instead of conventional combustion for higher efficiency
- Technology Readiness Level: 4/9
- Impact: 4/5
- Investment: 4/5
Pulse detonation engines use detonation instead of deflagration for propulsion, potentially increasing efficiency. Research and development; one prototype flown in 2008. Applications: higher-efficiency propulsion. Challenges include cycle frequency, materials, and control.

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Source: Envisioning — Technology Research Institute (https://www.envisioning.com/research/altitude/pulse-detonation-engine)