Big piston displays - what do you want?

[Plumb Bob]

On the subject of formations, I would like to point out that ‘dissimilar’ combinations sometimes really drown the sound of the less noisy machine(s). Let the violin also be heard without the accompanying instruments.
I once witnessed the Dutch military Beaver + Auster pair fly up and down the field rather fruitlessly: I never heard the proper Auster music.

Otherwise