Hovercraft

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Main topic

Purpose/Function

To travel on land, water, and/or a mix

Factors

Materials

Properties

Corrosiveness (to salt)

Elasticity

Durability

Not easily damaged

Water proof

Structure

Ergonomic

Aesthetic

Critical Load

Efficiency Rating

Load Positioning

In skirt

Small Compartment on hull

COMFORTABLE Area/Space for passengers

On top of hull

Dimensions

Hovercraft 1

Not too big, want light weight

Hovercraft 2

No Greater than 18" x 8" x 5"

About 15" x 5" x 3"

Skirt/Air Cushion

About 18" x 8" x 2"

Terrain

Cabable to travel on all three

Marsh

Rough (waves)

Calm

Land

Rough

Smooth

Forces

External

And collected particles (ex. dust, leaves, etc.)

Gravity

Water

Wind

Internal

Compression

Torsion

Tension

Shear

Weight

Materials (tape, glue, etc.)

Apparatus

Load

Hovercaft

Drag

Form Drag

Parasitic Drag

A design that will minimize the impact (Windcut)

Ex. "Sharp/Pointy" nose

Cards forming triangle

Induced Drag

Minamilize

Lightweight Materials, Equipment and Apparatus

Plastic (LIGHTWEIGHT)

Foam core (lightweight)

Skin Friction

Minimalize

Smoother surface

Increase Lift

Buoyancy

Neutral

Positive

Negative

Displacement

Equal to Weight

More than weight

Less than weight

Lift and Thrust System

Delating balloon

Make hole on hull (for the balloon to fit) bigger than the hole underneath the hull (genenrating lift)

A greater SURFACE AREA of the terrain will experience the "wind", so a greater SURFACE AREA of the hovercraft hull will experience the "wind" and help generate lift

The force will be more equally distributed, which will help the hovercraft "float", so generate lift

Plays the same role as the fans

Helped hovercraft glide and create upthrust

Fans

Forward ONLY

Forward, Backward, Off

Manual

Remote Control

Antenna

Receiver

Upthrust

Circuit

Wiring ONLY

Switch

Skirt

Triangular

Cover bottom

Around bottom

Rip Stop Vinyl

Nylon Taffeta

Vinyl

Ripstop Nylon

Spandex

Satin

Vinly Coated Nylon

Bag Skirt

Finger Skirt

PowerSource

Battery

Non-Rechargable

Rechargeble

People

Direct Air Current

Solar

Panels

Gas

Turbine

Engine

4 Stroke

2 Stroke

Electricity

Wired to power box

Wired to Outlet

Steering System

Rudder

Function

Remote control

Reciever/Antenna

Direction

Ability to turn

One way

Straight line (only limited amount of space)

In a circle

Placement

Back

Front

Hull

Material

Foam Core

Aluminum

Glass Reinforced Plastic

Plywood

Styrofoam

Metal

Plastic

Corrugated cardboard

Covered in Plastic

Cardboard

Covered in plastic

Shape

Circular

Rectangle

Pointed front (triangular)

To help minimize drag

U-Shaped

MAY help minimize drag

To help resist drag, can add something with a sharp edge at the front (ex. two cards forming a triangle)