Volume 004 · Flight
Owls
Noise-Reducing Wing and Blade Surfaces
Most birds make an audible whoosh when they fly past. Many owls make almost none. A barn owl hunting over a meadow at night glides and flaps so quietly that a mouse in the grass below may hear nothing until it is too late. The owl gains a second advantage: with less noise from its own wings, it can hear its prey more clearly.
- Price
- $6.99
- Format
- eBook (PDF)
- Length
- 35 pages
- Edition
- First Edition
- Publisher
- WealthSphere Labs
- Language
- English
Sold and delivered by WealthSphere Labs. All 20 volumes are $59.
Inside this volume
- Introduction: The Quiet Hunter
- Owls and Silent Flight
- The Owl's Three Quiet-Flight Features
- How Wings and Blades Make Noise
- Research and Applications So Far
- Translating Owl Features Into Engineering
- Materials and Manufacturing
- System Design for Quiet Machines
- Ten Owl-Inspired Design Concepts
- Acoustic Testing
- Failure Modes and Limitations
- Standards, Intellectual Property and Market
- Design Workbook
- Case Study — Quieting a Delivery Drone
Plus appendices of formulas and rules of thumb, common reader questions, a glossary and further reading.
More flight volumes
Educational guide. The invention concepts are design ideas for study, not tested or certified products.