# US 10,870,486 B2 · Diamond quadcopter

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- Number: US 10,870,486 B2
- Document ID: US10870486B2
- Status: Granted
- Kind: B2
- Application number: 16/134,509
- Filed: 2018-09-18
- Published: 2019-03-28
- Granted: 2020-12-22
- Earliest claimed: 2017-09-22
- Applicants: Stephen Lee Bailey
- Inventors: Stephen Lee Bailey
- Web page: https://patentgrep.com/patent/US10870486B2

## CPC

- B64C 29/0033: {the propellers being tiltable relative to the fuselage}
- B64C 1/1415: {Cargo doors, e.g. incorporating ramps}
- B64C 11/001: {Shrouded propellers}
- B64C 39/08: having multiple wings
- B64U 10/14: with four distinct rotor axes, e.g. quadcopters
- B64C 2001/0045: {Fuselages characterised by special shapes}
- B64U 50/19: using electrically powered motors
- B64U 50/30: Supply or distribution of electrical power
- Y02T 50/10: Drag reduction
- B64C: AEROPLANES; HELICOPTERS
- B64U: UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
- Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION

## Abstract

A diamond quadcopter is described with tilting propulsion modules attached to a diamond faceted fuselage providing vertical thrust for Vertical Takeoff and Landing (VTOL) and transitioning to horizontal thrust for flight. The diamond faceted fuselage generates lift as a low aspect ratio lifting body. The diamond-like facet geometry enables propulsor placement to minimize interaction between the slipstream and fuselage in all modes of operation. A retractable landing gear with powered wheels allows Vertical/Short Takeoff and Landing (V/STOL) including emergency landings, and maneuverability on the ground. Landed and with gear retracted the bottom fuselage facet is close to ground level allowing an aft facet ramp for walk-on or roll-on access of passengers and payload. With the landing gear extended the vehicle can maneuver over cargo using the wheeled hub motors and then retract for insertion of cargo through a fuselage bottom door.

## Claims

### Claim 1

A diamond quadcopter comprising:
a diamond faceted fuselage, with
tilting propulsion modules mounted on the inboard side of support foils, with
retractable landing struts mounted in said foils with motorized wheels, with
a ramp access and bottom door for loading and unloading, whereby
said tilting propulsion modules provide thrust for lift and flight for vertical/short takeoff and landing as a quadcopter with minimal slipstream interaction with said fuselage, whereby
said ramp provides walk-on or roll-on capabilities for people and cargo, whereby
said motorized wheels allow maneuvering over and then insertion of cargo through said bottom door by extension and retraction of said landing struts.