Model Boat Mayhem

Technical, Techniques, Hints, and Tips => Other Technical Questions... => Topic started by: rescue on February 25, 2007, 05:20:38 pm

Title: rudder mounting
Post by: rescue on February 25, 2007, 05:20:38 pm

hey I 'am building a Mersey lifeboat and I'm wondering how to make a ruder fitting trow the hull for home made rudders?

AL suggestions are welcome

Edwin

Title: Re: rudder mounting
Post by: catengineman on February 25, 2007, 10:13:33 pm

Quote from: Edwin Rescue on February 25, 2007, 05:20:38 pm

hey I 'am building a Mersey lifeboat and I'm wondering how to make a ruder fitting trow the hull for home made rudders?

AL suggestions are welcome

Edwin

Hi Edwin,      I don't know what size you have for your rudder shaft but you could try a length of brass or copper tube that fits over the shaft snugly.  I will add be sure to make the top of the tube finish higher than that of the "water line" or ingress of water will probably occur.  Bonding the rudder tube to the hull with an epoxy resin should be OK with most hull materials.

Richard,

Title: Re: rudder mounting
Post by: tigertiger on February 26, 2007, 01:19:24 am

Quote from: catengineman on February 25, 2007, 10:13:33 pm

Quote from: Edwin Rescue on February 25, 2007, 05:20:38 pm

hey I 'am building a Mersey lifeboat and I'm wondering how to make a ruder fitting trow the hull for home made rudders?

AL suggestions are welcome

Edwin

Hi Edwin,      I don't know what size you have for your rudder shaft but you could try a length of brass or copper tube that fits over the shaft snugly.  I will add be sure to make the top of the tube finish higher than that of the "water line" or ingress of water will probably occur.  Bonding the rudder tube to the hull with an epoxy resin should be OK with most hull materials.

Richard,

To add to Richards entry. The small brass rudder tube can run through a wooden block, adding strength when it is epoxy glued to the hull.

Title: Re: rudder mounting
Post by: HS93 (RIP) on February 26, 2007, 01:32:36 am

Any chance of a picture of the parts or the bit of plan or a bit more about the hull.. Im shure there are plenty of people who will post pictures when they get a bit more info   peter

Title: Re: rudder mounting
Post by: rescue on February 26, 2007, 09:09:00 am

Quote from: HS93 on February 26, 2007, 01:32:36 am

Any chance of a picture of the parts or the bit of plan or a bit more about the hull.. Im shure there are plenty of people who will post pictures when they get a bit more info   peter

the hull is still under construction and is filed whit polystyrene



it Will be don whit gpr as soon as possible
so the total space that i have  to operate in will than be seen i think it is around 5cm high

the rudders haven't been made yet it Will be from Wood whit a schaft trow it
but no details jet i first want som info how to make a propper rudder setting

Edwin

Title: Re: rudder mounting
Post by: Tug-Kenny RIP on February 26, 2007, 10:02:09 am

Here is the way I did my shafts . I have fitted tubes which should be higher than the water line


Cheers...Ken

Title: Re: rudder mounting
Post by: rescue on February 26, 2007, 04:35:45 pm

would a bit of grease help to prevent water from entering or Will this be to muts resistend?

Edwin

Title: Re: rudder mounting
Post by: catengineman on February 26, 2007, 08:26:01 pm

HI Edwin,

 Yes grease inside the tubes will help but the important thing is to have good fitting rudder shaft to rudder tube sizes, also fitting an 'O' ring over the shaft will help a little but the hight of the tubes must be above the water line.

Are you making the complete rudder system from scratch? or will you concider some shop produced parts?

Richard.

Title: Re: rudder mounting
Post by: edible_engine on February 26, 2007, 08:39:48 pm

i made the rudder on my boat from scratch its to close fiting tubes of ks brass

Title: Re: rudder mounting
Post by: rescue on February 26, 2007, 08:58:39 pm

i wil make them totaly out of scratch to keep the costs down

edwin