Aquatic propulsion speed record.

[Pds314]

The aim of this challenge is to build a craft that can go as fast as possible on the surface of the water, by pushing off the water itself.

You may use any propulsion technique you wish, provided that it is hydrodynamic and not aerodynamic or (directly) thruster-propelled in nature.

You may use DLC and informational or piloting mods.

However, physics mods must not be enabled, even if you don't think they do anything, as water doesn't respond well to many of them. Also no mod parts because they're not balanced.

[Space Kerbalisation Tech]

1 hour ago, Pds314 said:

The aim of this challenge is to build a craft that can go as fast as possible on the surface of the water, by pushing off the water itself.

Can you please explain a bit more about this form of propulsion, as “by pushing off the water itself” is a new thing for me, and it seems like some form of exploit using buoyancy (or it probably is just me not understanding this well enough). I think it will be helpful if you can provide a more detailed example, video or something like that.

thanks in advance

[Lt_Duckweed]

You can push off water with a propellor.  Its called a boat.

[18Watt]

1 hour ago, Space Kerbalisation Tech said:

Can you please explain a bit more about this form of propulsion

I believe @Pds314 means that if you use a propeller, it must function while completely submerged.  Building a propeller which functions under water is a little different (perhaps more difficult) than building one that works in air.

Most of the propeller driven boats I build have the propeller above the surface, in air.  They are like ‘airboats’.  This design is not what this challenge is after- he’s looking for propulsion which works while completely submerged.

i think.

[Space Kerbalisation Tech]

oh ok thanks