On: Plane lifted into back garden as bunker takes shape

The video version:

https://www.youtube.com/watch?v=ixh0KIackIk

There's also a bunch of other videos of other stages of the project up to this point.

Few minutes in and he is mixing concrete: Too much water in this concrete mix. Wrong kind of sand as well... Luckily he seems to have had a professional mix the concrete for the walls, etc.