N.B. Trilby

[Trilby Tim]

1 minute ago, PD1964 said:

Looking good, are you putting any small anodes on the clams to lesson galvanic corrosion?

Yes, I did this time, 2 pairs on each clamshell. They were the last job and I did them at 8pm the night before it was due to be re-floated so didn't take any photos!

[harrybsmith]

I may regret finding this thread... currently rebuilding a boat, thinking about rudder design (amongst other things) and wanting to optimise for manouverability, as i'm seriously going to miss the nimbleness of my current boat's Enfield outdrive. I took a "proper boater" (lives on an ex-carrying NB, likes to talk about roses and castles etc) out on it last weekend and baffled them with things like steering in reverse.

 

A fair chunk of my job is doing CFD/sim stuff, i'll have a browse of your repo and see whether I can get it to give meaningful results. We may be missing a fair few sampling points/inputs to get a clear model, but we shall see. Massive respect for building it in the first place, and great that it got 10 years of service 

[IanD]

19 minutes ago, harrybsmith said:

I may regret finding this thread... currently rebuilding a boat, thinking about rudder design (amongst other things) and wanting to optimise for manouverability, as i'm seriously going to miss the nimbleness of my current boat's Enfield outdrive. I took a "proper boater" (lives on an ex-carrying NB, likes to talk about roses and castles etc) out on it last weekend and baffled them with things like steering in reverse.

 

A fair chunk of my job is doing CFD/sim stuff, i'll have a browse of your repo and see whether I can get it to give meaningful results. We may be missing a fair few sampling points/inputs to get a clear model, but we shall see. Massive respect for building it in the first place, and great that it got 10 years of service 

 

A Schilling rudder is much simpler and cheaper (and easy to retrofit) and like the Kitchen rudder gives improved manoeuvrability compared to a flat plate rudder, certainly when going ahead, including acting as a stern thruster (sideways thrust only). But it probably doesn't give as much steering effect when going astern as a Kitchen rudder.

Edited November 3, 2022 by IanD

[Trilby Tim]

On 03/11/2022 at 15:28, harrybsmith said:

I may regret finding this thread... currently rebuilding a boat, thinking about rudder design (amongst other things) and wanting to optimise for manouverability, as i'm seriously going to miss the nimbleness of my current boat's Enfield outdrive. I took a "proper boater" (lives on an ex-carrying NB, likes to talk about roses and castles etc) out on it last weekend and baffled them with things like steering in reverse.

 

A fair chunk of my job is doing CFD/sim stuff, i'll have a browse of your repo and see whether I can get it to give meaningful results. We may be missing a fair few sampling points/inputs to get a clear model, but we shall see. Massive respect for building it in the first place, and great that it got 10 years of service 

I'm currently going from Thorne to Sheffield, so if you want to have a look at it you could come and meet me somewhere along the route (or in Sheffield when I get there).