I frequent quite a few small airports with my Vans RV-3B. Many of these do not have much in the way of tie down equipment. So, carrying my own set of chocks is important to me. This means that they must be light.
The controlling factor on the RV-3 chocks is the height of the bottom of the wheel pant. It is close to the ground so a big chock (or chunk of 2×4 lumber, etc…) simply does not fit. I picked 1/16″ x 1″ aluminum angle from the hardware store. Aircraft grade aluminum is not required! 🙂
I made my chocks six inches long and added a little chord to keep them together. The holes are simply to add lightness. Well… ok, they look neater with the holes!
By the way, I should note that I thought about drilling the holes so they spelled something to make for a really high kewl factor (N-Number or “RV-3” or ???). However; when I considered that I can barely drill multiple holes in a straight line I figured attempting this would result in a really lame looking set of chocks. Best to admit my limitations!