@AeroEngineering @stig27 !Modded pistons found here

@blackvultureaeroespace I've tried it but it didn't work. Can you post the system, please?

@blackvultureaeroespace nice system
I tried it myself before pistons using floats on arms on rotators.
From the pictures the effect of yours looks a lot less conspicuous than mine.

A very nice paper.

Thanks all

@stig27 With some floaters in modded pistons

how do you simulate the ballast tanks to make it surface and dive? pls help.

@Awsomur Thanks

Very cool!