Hybrid Hover Drone Hull With Ducted Fans for Mixed Terrain

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Solution Overview

Problem

Conventional hovercraft systems are limited in their ability to operate on both land and water, have low object clearance height, and are unstable on slopes, while drone systems have limited payload capacity and flight duration due to power constraints and cannot float on water.

Innovation Solution

A hover drone system combining features of hovercraft and drones, with a hull, ducted fans, flexible skirts, and a power source, allowing for multiple modes of operation including hovercraft, airboat, and drone modes, utilizing a multicopter flight controller for stability and control, enabling efficient travel over mixed terrain.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If conventional hovercraft systems use flexible rubber skirts to lift the hull out of water, then drag is reduced, but the system cannot operate out of water

Engineering Contradiction:
Improvedrag reductionVSAvoidoperational environment
Core Design Contradiction:
Loss of energyVSAdaptability or versatility

Solution Approach 1:

The hover drone system combines hovercraft lifting fans with drone rotors and a floating hull design, enabling the vehicle to operate in multiple environments including water, land, and air. The system can transition between hovercraft mode (reducing water drag), airboat mode (floating on water surface), and drone mode (aerial flight), making it universally adaptable across different operational contexts

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If conventional hovercraft are completely skirted on all sides, then they can operate on both land and water, but object clearance height is limited by skirt depth

Engineering Contradiction:
Improveoperational surfaceVSAvoidobject clearance height
Core Design Contradiction:
Adaptability or versatilityVSLength of moving object

Solution Approach 1:

The system uses dynamically adjustable components including flexible skirts that can be raised or lowered, and transition between hovercraft mode (with skirts deployed) and drone mode (with skirts retracted). This dynamic adjustment allows the vehicle to achieve both ground clearance when needed and operational versatility when skirts are deployed

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If conventional hovercraft are completely skirted, then they can operate on land and water, but slope climbing ability is limited to 10-20% gradient

Engineering Contradiction:
Improvesurface operation capabilityVSAvoidslope climbing ability
Core Design Contradiction:
Adaptability or versatilityVSForce

Solution Approach 1:

The hybrid system combines hovercraft capabilities with drone flight capabilities, allowing the vehicle to overcome slope limitations by transitioning to aerial flight mode when encountering steep gradients. The drone rotors provide sufficient lift to climb slopes exceeding the 10-20% gradient limitation of conventional hovercraft

Inventive Principle:
Principle #6Universality (Multi-functionality)

4Stability of the object's composition

If drone systems use battery power for hover and flight, then stable flight is achieved, but payload capacity and flight duration are limited

Engineering Contradiction:
Improvehover stabilityVSAvoidflight duration
Core Design Contradiction:
Stability of the object's compositionVSDuration of action of moving object

Solution Approach 1:

The system uses lifting fans that force air underneath the hull to create lift, similar to hovercraft operation. This pneumatic lifting mechanism is more energy-efficient than battery-powered drone rotors alone, enabling extended flight duration and increased payload capacity while maintaining stable hover capability

Inventive Principle:
Principle #29Pneumatics and hydraulics

5Stability of the object's composition

If drone systems are designed for flight, then stable hover is achieved, but the system cannot float on water

Engineering Contradiction:
Improvehover stabilityVSAvoidwater operation capability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The vehicle incorporates a floating hull design with buoyancy chambers that enable water operation, while also integrating lifting fans and drone rotors for aerial flight. The system can transition between water-based airboat mode and aerial drone mode, achieving both stable hover capability and water floating capability

Inventive Principle:
Principle #6Universality (Multi-functionality)

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The system achieves increased range, energy efficiency, and payload capacity, with versatile operation on land and water, overcoming conventional limitations by providing stable hover and flight capabilities with reduced power consumption.

Implementation Method 1

lift fans to force air underneath lifting the central hull out of the water thus reducing drag

Methodology Applied
Scientific EffectAir cushion: Air Lubrication

Implementation Method 2

a plurality of ducted fans (205) integrated into the hull (203)

Methodology Applied
Scientific EffectAerodynamic lift: Aerofoil

Implementation Method 3

a propeller (208) mounted on a shaft (206) extending rearward from the power source (207)

Methodology Applied
Scientific EffectPropulsive thrust: Jet

Implementation Method 4

a battery (207) mounted in the hull (203)

Methodology Applied
Scientific EffectBattery energy storage: Battery (electricity)

Data Source

PatentUS12434682B1Hover drone system
Publication Date: 2025.10.07 WISEMAN OWEN RICHARD
  • US12434682B1 patent drawing
  • US12434682B1 patent drawing
  • US12434682B1 patent drawing

AI summary

A hover drone system includes a hull extending from a front end to a rear end and from a first side to a second side; ducted fans integrated into the hull, the ducted fans provide lift and propulsion for the hover drone system, the fans operated by a power source; a first sidewall extending from the first side of the hull; a second sidewall extending from the second side of the hull; and a flexible skirt extending from the front end of the hull and from the first sidewall to the second sidewall; the rear end of the hull is open.