Model Boat Mayhem

Mess Deck: General Section => Full Scale Ships => Topic started by: Martin (Admin) on November 22, 2020, 01:53:47 am

Title: Proellor ... stators?
Post by: Martin (Admin) on November 22, 2020, 01:53:47 am

 
Saw this on Utube, anyone any idea what's going on here, the vanes / stators in front of the prop?

 https://youtu.be/B44OQaGwuKY




(https://i.ibb.co/1Lz5BtX/prop-3.jpg)


(https://i.ibb.co/9tkcbj0/prop-2.jpg)


(https://i.ibb.co/QcB5PfL/prop-1.jpg)

Title: Re: Proellor ... stators?
Post by: Subculture on November 22, 2020, 07:43:05 am

https://www.wartsila.com/media/news/07-11-2017-wartsila-introduces-an-innovative-pre-swirl-stator-to-improve-fuel-efficiency

Title: Re: Proellor ... stators?
Post by: raflaunches on November 22, 2020, 08:30:08 am

Looks like they are copying gas turbine technology which utilities similar stators to guide the air to the next compressor stage.

Title: Re: Proellor ... stators?
Post by: malcolmfrary on March 21, 2021, 09:01:13 am

Most of these ideas are about efficiency.  Variable pitch pre-swirler or anti-swirl device?
I wonder if he blob on the leading edge of the rudder is part of the set?
Will it get incorporated into a model?

Title: Re: Proellor ... stators?
Post by: KitS on March 21, 2021, 09:15:54 am

Quote from: malcolmfrary on March 21, 2021, 09:01:13 am

I wonder if he blob on the leading edge of the rudder is part of the set?

It looks as if the blob will line up nicely with the prop hub when it's in the straight ahead position, so it may well be part of the 'efficiency' package.

Title: Re: Proellor ... stators?
Post by: warspite on March 21, 2021, 12:09:14 pm

Obviously someone has been running the hull through a laminar flow computer program to redirect the flow.

Title: Re: Proellor ... stators?
Post by: Akira on March 21, 2021, 12:32:02 pm

I do not believe that this is terribly new technology. Submarines, and I believe torpdeo manufacturers,  have been using this arrangement for years while adding a ringed propulsor and even exit stator fins. It does appear to be a first for the commercial sector though.