Chesapeake Bay Anchor Holding Power Test

[wsmurdoch]

Originally Posted by estarzinger

I did my bollard pull using 25' of dyneema to a piling exactly because I wanted to measure the steady state force and not get a bunch of dynamic noise (and it does look like this scales very roughly linearity).

Three articles on sailboat zero velocity thrusts are:

http://www.propelspecialisten.dk/dow..._test_2008.pdf
Cruising World - Google Books
http://www.flexofold.com/upload_dir/...onthly_low.pdf

(No expert here, just Google and a little time.)

It is interesting how much difference props, transmission ratios, and engines make.

As an aside, I especially liked the measurement of side thrust. Real measured data after listening to a lot of claims about changes in prop walk with changes in props.

[Fortress]

FYI - A link to PassageMaker's magazine story about the testing:

https://www.dropbox.com/s/lcypucilvz...EAMAN.pdf?dl=0