The following paper shows gives a good summary on the different advantages/disadvantages of tractor vs puller propellers in chapter 3.2.2:...
Thanks Johneck, I solved my coefficients error, thanks to your tables. The data differences are typical for typo's. I have attached the...
Are the coefficients of the KTT off aswell? or are they the same? I believe the KTT are correct but some of the KTQ coefficients should be...
I have encountered various small differences in some coefficients depending on the source. which made me suspicious about these, especially as my...
I am trying to implement a propeller calculation in excel for ducted propellers (Wageningen Ka series in nozzles 19A and 37). I am using the...
Phil , I don't think you should consider them as being the same technique! The winglet of an airplane is mainly designed and put in place to...
Van Oossanen has launched their "Hull Vane" in the press last year: http://www.oossanen.nl/the-hull-vane/...
Also an additional note on power prediction, Your vessel is sailing in shallow water... Most Power prediction programs are not equipped for power...
Fully loaded will be the least of your problems. Will it always be fully loaded, or will it sail partially loaded or even in ballast? Generally...
[IMG] I am afraid she has a visitor with not the same exquisite taste!!! Its destroying her lines!! Away with you....
Someone showed me a video of a ship biting its way through the ice using its propellers some time ago. I have been searching the web for something...
I could not help noticing in the photo that the bow is protected by the "zee kameel 1". Although I cannot argue that the risk of breaking the...
Frosty, Ice Class: You have ice breakers and regular vessels with ice class. The reasons for vessels with ice class is that they are better at...
I am not totally familiar with ice class rules, however I do know the following: In order to satisfy Ice class, vessels are to have a...