Make a Boomerang From Wooden Paint Stirrers

The idea of using paint stirring sticks to make a Boomerang came from watching a 'TKOR' You Tube clip (The King of Random). Having previously made boomerangs from plywood I was interested to see how such a cheap and easy to make boomerang would fly.

(Spoiler alert: it flew pretty good, scroll down to the end to see it in action)

2 Paint Stirrers

PVA glue

Use 2 paint stirring sticks which are about 4mm thick, 3cm wide and 30 cm long:

Divide the length in half.

Draw on some guilding lines, the first about 5 mm from the leading edge, the second half the width for the trail edge.

Use this as guilde, shape the wood with a wood rasp. The goal is to achice a shape like an areoplane wing.

After getting close to final shape with a wood rasp, finish off with a bastard file to make it smooth.

As can be seen: half to length is shaped one way and the half the other way. For the trailing edge, you don't need to shape it the whole thickness of the wood. About half the thickness is good enough.

You will be able to work it out by looking at the photos.

Glue together with white PVA wood glue.

Throw the boomerang about 15 degrees from being up and down. As it leaves your hand give in a flick with your wrist to get it spinning.

Don't throw it horizontal with the ground. If you do, it will go straight up, come down and probably break.

When thrown the boomerang has forward speed and rotation speed.
The shape of the Wings makes lift by changing the direction and pressure of the air as the boomerang travels through it.
Each blade generates more lift at the top due to rotation tip speed and the forward speed adding while at the bottom the tip speed subtracts from the forward speed. The resulting Gyroscopic precession causes the boomerang to turn.

https://www.scientificamerican.com/article/no-one-can-explain-why-planes-stay-in-the-air/
https://en.wikipedia.org/wiki/Boomerang