Rocket FinCan

Rocket FinCan
Menu location
Rocket → Fin Can
Workbenches
Rocket Workbench
Default shortcut
None
Introduced in version
0.19
See also
None

Description

Fins are used to aerodynamically control the direction of flight. A fin can is a complete assembly including fins and body tube, often fitted over the outside of the main rocket body tube. Optionally, a fin can may include a launch lug.

A fin can with launch lug

Usage

1. There are several ways to invoke the command:
   • Press the Fin Can button.
   • Select the Rocket → Fin Can option from the menu.
   • Double click on a Fin Can object in the Tree view.
2. Set options and press OK.

Options

Fin Options

Fin options for the fin can are the same as for individual fins. See Fin for more details

However due to the one piece nature of fin cans, they do not have the option to include Through The Wall (TTW) tabs.

Fin Can Options

Launch Lug Options

Properties

Fin Can

• DataFin Type: Defines the shape of the fins.
• DataHeight: The fin height.
• DataProfile: The sketch associated with the custom fin type.
• DataRoot Chord: The distance between the fin leading and trailing edges at the root
• DataRoot Cross Section: The cross section shape of the fin at the root, see Options
• DataRoot Length 1: Usage depends on the Fin Root Cross Section and will apply to a taper length or similar, see Options
• DataRoot Length 2: Usage depends on the Fin Root Cross Section and will apply to a taper length or similar when multiple values are required, see Options
• DataRoot Per Cent: Expresses the Fin Root Length 1 and Fin Root Length 2 properties as a percentage of the Fin Root Chord
• DataRoot Thickness: Maximum thickness at the root of the fin
• DataSweep Angle: The angle of the front of the fin, with a vertical front being 0 degrees. This may be negative. Setting this value will cause the Sweep Length to be adjusted.
• DataSweep Length: The distance from the front of the fin root to the front of the fin tip along the x axis. This may be negative. Setting this value will cause the Sweep Angle to be adjusted.
• DataTip Chord: The distance between the fin leading and trailing edges at the tip
• DataTip Cross Section: The cross section shape of the fin at the tip, see Options
• DataTip Length 1: Usage depends on the Fin Tip Cross Section and will apply to a taper length or similar, see Options
• DataTip Length 2: Usage depends on the Fin Tip Cross Section and will apply to a taper length or similar when multiple values are required, see Options
• DataTip Per Cent: Expresses the Fin Tip Length 1 and Fin Tip Length 2 properties as a percentage of the Fin Tip Chord
• DataTip Thickness: Maximum thickness at the tip of the fin

Rocket Component

These parameters are provided for information and have no effect on the design of the component.

• DataDescription: Description of the component
• DataManufacturer: Manufacturer when known
• DataMaterial: Material when known
• DataPart Number: Manufacturer part number

Tutorials and Learning

Rocket Workbench Fins Tutorial on YouTube