Pushrods are one of the most important parts of your airplane (wait–aren’t they all important??). If your pushrod fails, your chances of a successful flight are very close to zero!
Pushrods connect the servo horn (on the servo) to the control horn (on the control surface).
Traditionally, steel rods or wood rods were used. However, these are relatively heavy. For our indoor-flyers, keeping weight to a minimum is important!
We will use a hybrid of carbon fiber and ‘piano wire’, which is a strong and thin steel wire.
To construct a control rod, you will use 4 materials:
- Carbon fiber rod (very thin diameter)
- Piano wire (2 pieces–one with a “Z-bend” and one straight)
- Heat-shrink tubing (smallest you can find)
- CA-glue (thick)