Prop Engine

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**Explorer Prop, Skyline Prop, Interceptor Prop, Strider Prop, Vortex Prop, Riptide Prop**

*What does this mean?*

## Performance

### Power Usage

≤ 83.5MW

A **Prop Engine** is an engine that uses a propeller, or wings or fins attached to a hub, then attached to an electric motor. Therefore, a prop engine comes in two parts - an electric motor and a propeller.

## Performance Stats

There are multiple performance stats that are unique to other parts, including max speed and max RPM. The stats listed from top-to-bottom are Max Speed, TWR, Thrust, Max RPM (air), and Max RPM (water), including a slider for RPM.

The **max speed** stat indicates the maximum velocity at a certain RPM where it can propel a craft, although achieved speeds are lower.

The **TWR** stat indicates the engine's thrust compared to the mass it's attached to (including itself). The **thrust** stat indicates the thrust it would produce at a certain RPM.

The **max RPM (air)** stat indicates it's maximum rotational speed before it begins to take damage. As values further exceed the max RPM, the amount of damage it takes increases. The **max RPM (water)** stat indicates it's maximum rotational speed when in water, with the same consequences as in air.

The **RPM** slider allows the player to see the above stats at an RPM of 0 ~ 10000.

## Prop

The prop is the part that is spun by the electric motor, and is customizable to increase available thrust, tolerance, and also effective speeds. Customizable settings are Blade Count, Size, Blade Width, Hub Scale, Blade Control, Fixed or Maximum Positive Pitch, Reverse Blades, Auto-Reverse Motor, Blade, and Hub.

The **blade count** slider defines how many blades are on the prop. Increasing the number of blades will increase thrust at a cost of increased mass and aerodynamic drag. A propeller can have between 2 and 8 blades, but not 5.

The **size slider** determines the propeller's radius. It varies widely based on the **blade** setting. The **blade width** slider defines the width of the blades. The **hub scale** slider defines the size of the hub, or a part in the center of the prop.

The **blade control** setting allows a selection of **fixed** or **manual**. In the fixed setting, the blades' pitch is set. In the manual setting, the blades' pitch is set to the maximum pitch it can go to. Changing the pitch greatly affects the thrust. A pitch of -90, 0, or 90 provides no thrust, while a pitch of around 50 provides the most thrust.

The **reverse blades** toggle allows the player to toggle the blades to rotate in the other direction. The **auto-reverse motor** toggle allows the game to reverse the blades when mirrored or in other similar conditions.

The **blade** setting defines the style of the blades, which can greatly change the propeller's size, thrust, and water/air tolerance, as well as RPM. The **hub** setting shapes the hub, which has no performance effects.

## Electric Motor

The electric motor is identical to the individual electric motor, only with different color schemes. It can be individually selected by clicking it, as well as removed from the prop.

## Example Prop Engines

The game provides six example prop engines customized to fit certain circumstances. All props are intercustomizable.

### Explorer Prop

The explorer prop is a small prop engine optimized for lifting very small crafts.

### Skyline Prop

The skyline prop is a prop engine optimized for small/low power aircraft.

### Interceptor Prop

The interceptor prop is a medium prop engine for general/medium power aircraft.

### Strider Prop

The strider prop is a large prop engine optimized for long range/high power aircraft.

### Vortex Prop

The vortex prop is a large-bladed prop optimized for lower power boats.

### Riptide Prop

The riptide prop is a large-bladed prop optimized for higher power boats.

## Trivia

* As the prop is simply a cylinder connected to wings/fins spun by an electric motor, players can make their own props that may function identically to the props in game.