Search found 104 matches

by malcolmd
Wed Aug 29, 2018 5:32 pm
Forum: General Steamboat stuff
Topic: New Forum
Replies: 11
Views: 1283

Re: New Forum

Very pretty :D
by malcolmd
Wed Aug 01, 2018 1:28 pm
Forum: Technical - Engines and Boilers
Topic: Watertube boiler casing lining
Replies: 12
Views: 957

Re: Watertube boiler casing lining

I think the vitcas would stand the heat, but not the shovel!!!
Firebricks and castable refractory for the grate area is the normal approach...

I would strongly advocate liquid fuelling for watertube boilers, their lack of thermal inertia makes them a pain to manage with a coal/wood fire.....
by malcolmd
Tue Jul 31, 2018 4:39 pm
Forum: Technical - Engines and Boilers
Topic: Watertube boiler casing lining
Replies: 12
Views: 957

Re: Watertube boiler casing lining

I used a 1 inch ceramic fibre board from vitcas. https://shop.vitcas.com/ceramic-fibre-board-1260-vitcas-insulating-board.html You can cut it with wood working tools or serrated knife. No inner steel liner. See blog for more details on insulation and casing https://sy-befur.co.uk/2017/07/04/boiler-i...
by malcolmd
Thu Jul 12, 2018 7:52 am
Forum: Technical - Engines and Boilers
Topic: Forgings/Castings for Leak Compound?
Replies: 4
Views: 483

Re: Forgings/Castings for Leak Compound?

RGSP wrote: Phil Webster built his own Leak Compound for Banjo: I'll ask him what he did for the crankshaft. .
Thanks that would be interesting. ..
by malcolmd
Wed Jul 11, 2018 4:14 pm
Forum: Technical - Engines and Boilers
Topic: Forgings/Castings for Leak Compound?
Replies: 4
Views: 483

Forgings/Castings for Leak Compound?

It looks like I need to make a new crank for my Leak Compound, and I was wondering if anyone is aware of a supplier of blank forgings or castings for the crankshaft?
by malcolmd
Sun May 27, 2018 7:28 pm
Forum: Welcome
Topic: Hello and a few questions!
Replies: 6
Views: 941

Re: Hello and a few questions!

Suggestions about the SBA are good ones - they helped me a great deal, lots of experience, proven designs etc. But don't be dissuaded, this is achievable stuff and managed to maintain my sanity as I migrated from work to retirement. But it's not quick, it has taken me 8 years to build hull, boiler a...
by malcolmd
Mon Apr 02, 2018 1:27 pm
Forum: Anoraks Corner
Topic: How High can Boiler Output be Forced?
Replies: 10
Views: 1548

Re: How High can Boiler Output be Forced?

As a BTW I have a copy of the old MAP book "Flash Steam for Hydroplanes" and they were certainly running into valve-gear issues with valves running "red hot" due to the temperature of the supplied steam!!! Impressive bits of kit. ..I think all in this book were being fired by Paraffin burners....
by malcolmd
Sat Dec 02, 2017 6:16 pm
Forum: Technical - Engines and Boilers
Topic: A new hotwell for Rainbow
Replies: 6
Views: 1617

Re: A new hotwell for Rainbow

What a neat solution. ...I think this might well find its way into Befur :-)

BTW I have had success welding stainless by arc welding with stainless rods. ..you get a mirror finish, but beware of the flux as it removes itself from the job quite violently as the job cools!
by malcolmd
Sat Nov 11, 2017 1:28 pm
Forum: Members' Websites and Boats
Topic: SY-Befer Passes Boiler Test
Replies: 4
Views: 1636

SY-Befer Passes Boiler Test

Yesterday we reached a milestone with Befur's boiler passing its initial test and the engine and ancillaries running on steam for the first time!

The Blog has the full story- we're all smiling here!!!
by malcolmd
Sun Jun 18, 2017 8:01 pm
Forum: Technical - Engines and Boilers
Topic: A question: s/t fitting 222/3 - what is it?
Replies: 0
Views: 1154

A question: s/t fitting 222/3 - what is it?

On the drawings for the Leak compound reheater it suggests the nipples which take the live (reheating) steam should be tapped 5/16 x 26 "to suit s/t fitting 222/3" - I have no idea what this part is. Stuart Turner?

Does anyone know?

M