Highlights

status

This site is my first attempt at a personal website. Work started at the end of 2025.

It is definitely a work in progress. A few items of note so far are listed here.

propeller book

This site contains an original textbook on propellers.

  Intended as a simple introduction to the classical theory, it acquired a life of its own. It is now as solid an introduction into classical propeller theory as any, with even some small additions to the theory.

  in particular, it contains a simple but accurate analytical viscous optimization, and an introduction to vortex theory as an accurate alternative to Prandtl's brilliant, but approximate tip loss function.

  Comments are invited !

hand linkages

-   hand linkages

    With an application in MRI.

showing draft text

This website will never be finished. If you are interested in my future plans, see some draft text here.

-   common fallacies

    like the downwind turn, T-tails, canards, and trim drag .

-   sails.

- methodology,

    With items like : design, money, inventors, and Delft.

Some items that I "invented" ( for lack of a better word ) include a proximal control law that I designed for an astronomical satellite and which flew successfully on the ISO satellite from 1995 to 1996.

-   Galloway.

  novel ideas : sailing, . . .

  patents . . .