### vehicle | aircraft | airplane:

Paper airplane
* Most paper airplanes find stability by being high-winged airplanes with dihedral wings.
* Paper Airplanes Make some paper airplanes.
* are capable of flies
  - created by humans
  - made of paper
  - toys

Real airplane
* are hollow and light.
* have round engines and two wings.

### vehicle | aircraft:

Airship
* Most airships are non-rigid airships.
  * ' are kind of aircraft. Airships stay in the sky by floating. This is different from aeroplanes that stay in the sky by moving. An airship floats like a balloon. But an airship is different from a balloon. An airship has an engine for power and a way to control its direction of movement. A balloon does not have an engine or a way to control its direction of movement.
* can transport large numbers of people and freight.
* is an aircraft
+ Airship, Kinds of Airships: Aircraft
  * Non-rigid airships have no structures in them. Non-rigid airships are also called blimps. Most airships are non-rigid airships.

Chopper
* Some choppers have edge blades.
* are motorcycles
  - tooths
* have two or three blades.
* includes aircraft engines
  - bases
  - ceilings
  - floors
* includes fuel gauges
  - indicators
  - lines
  - systems
* includes gas gages
  - tanks
* includes gasoline gages
* includes petrol gages
  - power trains
  - room light
  - sections
  - walls
* is grounder

### vehicle | aircraft | dirigible:

Blimp
* Some blimps have engines that can rotate in different directions to help steer.
* are air ships
  - large balloons stretched out to look like an egg or cigar
  - located in skies
  - reactionaries
* have no structure of any kind within the envelope, only helium and air.

### vehicle | aircraft:

Glider
* All gliders use an aerofoil to slow their rate of descent.
* Most gliders eat insects.
* Some gliders come with lines which can shrink, stretch, or have broken cores
  - feed on nectar from flowers.
  * are controlled by their pilots by using control-sticks. In gliders with two seats, each pilot has a control-stick. Gliders always have seats for the pilots
  - airplanes that fly for hours without using an engine
  - capable of unpowered flight
  - located in porchs
  - reclusive animals
  - social and communal by nature, and they crave time and attention
  - unpowered aircraft which are towed into the sky by a powered aircraft
  - very small and difficult to see, unless they are in a turn and the wing is visible
* begin their soar with the help of external propulsion.
* can fly hundreds of miles along ridges, for example, in Pennsylvania
  - make a sound like a barking puppy
* come in Redwood or Pine
  - all shapes and sizes
* descend relative to the air in which they are flying.
* do bark and have been known to bark all night long
  - bark, usually at night
* have a tendency to hide their illnesses, in the wild, an ill glider dead one
  - tendencies
  - ceilings
  - indicators
* includes gas gages
  - tanks
  - gauges
* includes petrol gages
* love most fruits, especially melons, grapes, raisins, oranges, and kiwis
  - to jump and climb
* produce a number of vocalisations including barking and hissing
  - at least three distinct odors
* propagate backward with respect to rake propagation.
* shriek as they dive out of the canopy, wary being in Powerful Owl territory.
* use thermals to soar with the eagles.
+ Gliding: Aircraft :: Animals
  * Gliding' is when an object or animal goes through the air without active flight. All gliders use an aerofoil to slow their rate of descent. Glider planes have wings, and gliding animals have membranes which they stretch out. By using rising air they can prolong their stay in the air. The word 'soaring' describes this, and is also used for the sport of gliding.

Gyroplane
* are more maneuverable than airplanes and can take-off and land in much shorter distances.
* use that same principle of autorotation that maple seeds do.