Model Boat Mayhem

The Shipyard ( Dry Dock ): Builds & Questions => Working vessels R&D: => Topic started by: timgarrod on January 25, 2014, 10:46:46 pm

Title: Dusseldorf Props
Post by: timgarrod on January 25, 2014, 10:46:46 pm
Evening All,

After chewing up the prop on my Dusseldorf last weekend, I've make up my mind to get some Brass one's. it runninn on the Navy 3/1 gearbox's and was running on 50mm Robbe props but to be honest they don't have much pitch on them. what would be the best prop for them

cheers

Tim
Title: Re: Dusseldorf Props
Post by: Shipmate60 on January 26, 2014, 09:47:59 am
What performance do you want from her.


Bob
Title: Re: Dusseldorf Props
Post by: timgarrod on January 26, 2014, 11:27:03 am
Hi Bob, I see then running like a PT boat before but not sure how they are meant to run.

like this http://www.youtube.com/watch?v=zlH-UA6xBv0 (http://www.youtube.com/watch?v=zlH-UA6xBv0)

Cheers Tim
Title: Re: Dusseldorf Props
Post by: Shipmate60 on January 26, 2014, 12:16:14 pm
I would try 40mm as brass props have far more pitch.
Just buy the cheapest or borrow some and see if the performance is what you want.
With 3:1 gearboxes you are unlikely to overload as I have run 100mm props on a similar set up.


Bob
Title: Re: Dusseldorf Props
Post by: Steven.T on January 26, 2014, 12:28:24 pm
I've found this video here, don't know if this is full speed or not but could give you some idea?


http://www.youtube.com/watch?v=ikUzKkPzvqQ


Steven
Title: Re: Dusseldorf Props
Post by: rhavrane on March 06, 2014, 06:27:27 pm
Bonjour,

If that speed is ok for you, see  HERE (http://www.youtube.com/watch?v=StLMxKPmShU), I can ask which engines and propellers my club president has chosen.
Title: Re: Dusseldorf Props
Post by: timgarrod on March 06, 2014, 07:02:31 pm
thanks, I been advised to but on ether 35 or 40mm brass prop's, hopping to test on 35mm one in the next couple of week. it the normal robbe gearbox that came with it about 10+ years ago lol, like the sound unit in the video  :-))
Title: Re: Dusseldorf Props
Post by: morley bill 1 on March 09, 2014, 02:27:56 pm
if you ring prop shop he can tell you the correct props to use  bill.....
Title: Re: Dusseldorf Props
Post by: wee speug on March 09, 2014, 10:57:22 pm
looking at the one on the first youtube link...its sitting very high in the water..compared to the real one...