+
+Creating a simple rocket design
+
+<p>This tour shows how to create a simple rocket design from scratch.
+
+
+[none]
+
+<p>When you choose to create a new design, you are presented with a blank
+design and the <em>Rocket configuration</em> dialog is displayed.
+Here you can enter general information on the rocket design, such as
+the design name, designer, comments and revision information.
+
+<p>You can later open this dialog by double-clicking on the root
+component in the component tree.
+
+
+[none]
+
+<p>Next, add a <em>Nose cone</em> to the design by clicking the
+corresponding component addition button. This opens the nose cone
+configuration dialog.
+
+
+[none]
+
+<p>The configuration dialog contains settings for the nose cone shape,
+dimensions and material. Set the nose cone length to 10 cm,
+base diameter to 2.5 cm and material to Polystyrene (plastic).
+
+<p>To use inches, either click the unit to change it, or change the
+default units in <a href="FIXME">Preferences</a>.
+
+
+[none]
+
+<p>The design window displays the nose cone. Next, add a <em>Body
+tube</em> to the design.
+
+
+[none]
+
+<p>Change the body tube length to 25 cm. The <em>Automatic</em>
+option for the outer diameter is ticked by default, in which case the
+diameter is automatically the same as that of the nose cone.
+
+
+[none]
+
+<p>Next, add a <em>Trapezoidal fin set</em> to the rocket. The body
+tube must be selected in order to add the component.
+
+
+[none]
+
+<p>The trapezoidal fin set has numerous dimension parameters. The
+most important are the root and tip chord (length next to the body
+tube and tip), height and sweep.
+
+<p>The default values are okay for the example design.
+
+
+[none]
+
+<p>Next, add an <em>Inner tube</em> as a motor mount. Select the body
+tube, and then click the component addition button.
+
+
+[none]
+
+<p>The default dimensions are suitable for Estes A-C motors. To have
+the motor mount overhang a bit, change the position parameter to
+<em>Bottom of parent component</em> plus 0.5 cm.
+
+
+[none]
+
+<p>To add <em>Centering rings</em> to keep the mount in place, select
+the body tube and click the centering ring button.
+
+<p>(If you have the inner tube selected when clicking, the centering
+ring will be added inside the inner tube. Use <b>Edit</b> →
+<b>Undo</b> to undo the latest action.)
+
+
+[none]
+
+<p>The centering ring automatically selects the appropriate outer and
+inner diameter when the <em>Automatic</em> checkboxes are selected.
+
+<p>Move the centering ring to the front of the engine mount by setting
+the position parameter to <em>Bottom of parent component</em> plus
+-5.0 cm.
+
+<p>Next add another centering ring at the aft end with position
+parameter zero.
+
+
+[none]
+
+<p>Next add a <em>Parachute</em> to the body tube.
+
+
+[none]
+
+<p>The <em>canopy diameter</em> and <em>drag coefficient</em>
+determine how much the parachute slows down the rocket during descent.
+The <em>material</em> and <em>shroud lines</em> affect the total
+mass. The <em>packed length</em>, <em>diameter</em> and
+<em>position</em> affect the packed size and location of the
+parachute.
+
+<p>The <em>Deploys at</em> propery can be used to affect when the
+parachute deploys. For <em>First ejection charge of this stage</em>
+option will deploy the parachute when the ejection charge is fired, as
+is typical in small model rockets.
+
+
+[none]
+
+<p>Now the functional aspects of the rocket design are complete.
+
+<p>For completeness you can still attach a <em>Mass component</em> to
+the body tube for wadding, and an <em>Engine block</em> to the inner
+tube for holding the motor in place.
+
+
+[none]
+
+<p>Now the rocket design is complete.
+
+<p>You can now continue to
+<a href="defining_motors/defining_motors">defining motors</a> to your
+rocket.
+
+
+
+