Cool Stuff! Dimpled hulls from deformable materials -

[Kirkhill]

Drones could fly 30% farther with golf ball-style shape-shifting skin

Inspired by golf balls, the innovation could pave the way for more efficient and maneuverable aerial and underwater vehicles.

interestingengineering.com

Revolutionary stuff for Naval Architects and Marine Engineers (and their aeronautical siblings).

 

[Colin Parkinson]

You see that a lot of the fast pleasure craft fitted with dimples on the planing surface to benefit from this effect. What I see is multiple stepped hulls with dimples between the steps. Exactly how much benefit the dimples provide is rarely discussed by the manufacturer.

The Definitive Guide to Stepped Hulls

 

[Staff Weenie]

Excuse me, they're called speed holes!