To not immediately crash the balsa wood wing I am building, I decided to make a foam delta wing of similar size and weight to get a good hang of flying.
In the end, this wing weighs a total of slightly less than 800 grams (without any camera on it) and has a wingspan of around 1.4 meters. I run it on a 3 cell with an 18 amp motor and 7"4 prop. I and up crashing into a tree with the camera on the plane on landing, but there was very minimal damage and repaired it in a day.
If you fly a drone or RC plane then you will really want to build or buy one of these devices because it can make a huge difference to the safety of your flying