This is what we are aiming for

Extrude

Click on the file menuClick on openOpen the body of the plane

Click on the assembly menu

Create new part in context

•Go to the file menu

•Click on save

•Save the new session as rudder

•Click on the workplane selector, this will show the workplanes

•Click to select the lateral workplane

•View onto this workplane

•Double click on it to select

Zoom out using shift - H

•Click on the workplane menu

•Create a new sketch on the lateral workplane called rudder. Make sure filled is selected and it’s on the frontal workplane

Zoom in on the tail section using shift - Z

Start the sketch by drawing a straight line using the line tool

Draw a large circle using the circle tool

Add lines to form the rest of the shape, make sure lines are joined and those joining the circle end in a line and dot on the circumference of the circle.

Remove the bits not needed with the scissors. Click on the removal button then move over the segment, when it goes blue click to delete.

The shape should fill, if not zoom in and check all the joints for stray bits of lines.

Change the view using the arrows to look straight down the plane.

•Click on extrude•Enter three millimeters in the distance box•Make sure add material is selected

This is what you should have.Change the view so you can see the underside

•Select the bottom surface using the surface selector.

•Turn this into a workplane by going to the workplane menu and clicking new workplane.

•Make sure plane of object is selected.

•Call it tail surface

Click on the workplane menu and select new sketch

Call it tail rod, make sure it is filled and on the tail surface workplane

View onto the new workplane using the view key, make sure it is still selected.

•Draw a circle using the circle tool

•Add a dimension by clicking on the dimension tool then clicking on the circle and dragging to the side.

•Click on the constraints selector and double click on the dimension

•Change the length to 3mm

Using the dimension tool set the centre of the circle 1.5mm from the edge of the rudder. Do this by;

•Select the dimension tool

•Select the circle by clicking on it when it’s bright blue

•Click and hold on the outside edge of the rudder

•Drag the dimension downwards.

•Select the dimension by clicking twice and change it

Add a dimension from the centre of the circle to the edge of the rudder, select and change it to 20mm

View the rudder from the side, use the arrows to alter the view

Extrude the circle to a length of 20mmSelect the extrude tool, make sure add material is selected and enter 14mm in the distance box

This is what you should have, save the rudder