Search found 71 matches

by TriangleTom
Thu Mar 15, 2018 1:31 am
Forum: Technical - Engines and Boilers
Topic: Resources/Information for Crank Lubrication?
Replies: 118
Views: 13777

Resources/Information for Crank Lubrication?

I'm currently working on my own engine design, and it seems like the biggest source of headaches is the crankshaft design and lubrication. I haven't been able to find anything regarding the crank bearings or lubrication. I'm currently planning on doing something along the lines of a built-up, bolted...
by TriangleTom
Tue Feb 20, 2018 6:19 pm
Forum: Technical - Engines and Boilers
Topic: Steam Thruster?
Replies: 61
Views: 10401

Re: Steam Thruster?

Another advantage of the trolling motor is safety. A lot of models are remote control from a keyfob, which means that if you ever fall overboard with the throttle shut you can use the trolling motor to bring the boat back to you. Maybe more of a concern for a fishing vessel, but still it can't hurt.
by TriangleTom
Tue Feb 20, 2018 4:56 am
Forum: Technical - Engines and Boilers
Topic: Steam Thruster?
Replies: 61
Views: 10401

Re: Steam Thruster?

I don't think it is some terrible negative thing to observe that many people new to the forum and to steam tend to want to re-invent the wheel. Or think that starting with a square wheel is a reasonable idea. Especially when their first improvement of the square wheel is to a triangular one! Fewer ...
by TriangleTom
Sat Oct 28, 2017 6:06 am
Forum: Technical - Engines and Boilers
Topic: Literature on Ofeldts?
Replies: 20
Views: 7316

Re: Literature on Ofeldts?

"As for materials, I'm planning on going all overbuilt, with schedule 80 pipe for the steam and mud drums and schedule 40 pipe for the water tubes. I really don't care about weight much for such an important component, so I'm aiming for a safety factor of 10, and hydrotesting at 1200 PSI on each pa...
by TriangleTom
Thu Aug 24, 2017 4:32 am
Forum: Technical - Engines and Boilers
Topic: Chevron W680 as cylinder oil?
Replies: 6
Views: 2949

Re: Chevron W680 as cylinder oil?

Let us know how it works out.
by TriangleTom
Fri Jun 30, 2017 10:20 pm
Forum: Technical - Engines and Boilers
Topic: Literature on Ofeldts?
Replies: 20
Views: 7316

Re: Literature on Ofeldts?

I think there are a couple in the Steam Boat Association "approved design" library. Kevin Slater at Steamwell Boilers (Manor Farm Engineering) would know of others, and would be worth talking to anyway By the way, if you want to go to 300 psi, then copper is certainly taboo in the UK, regardless of...
by TriangleTom
Fri Jun 30, 2017 8:03 pm
Forum: Technical - Engines and Boilers
Topic: Literature on Ofeldts?
Replies: 20
Views: 7316

Re: Literature on Ofeldts?

Hi Tom, for coal firing i prefer a thre-drum-boiler. They have a bigger water-capacity than the ofeldts with vertical drum (up to three times). There are a lot of designs for a three-drum different from yarrows like roberts or STUART Mandip (Kelly built such one for his RECIPROCA). Here is one of m...
by TriangleTom
Thu Jun 29, 2017 10:23 pm
Forum: Technical - Engines and Boilers
Topic: Literature on Ofeldts?
Replies: 20
Views: 7316

Re: Literature on Ofeldts?

If it's for a steamboat, and you're coal firing, go for the Yarrow. They're somewhat bigger and heavier than the Ofeldts for the same steaming capacity, and the time to reach pressure is a little worse, but the real point is that Yarrows are very easy for external tube cleaning, which you'll need t...
by TriangleTom
Thu Jun 29, 2017 5:39 pm
Forum: Technical - Engines and Boilers
Topic: Literature on Ofeldts?
Replies: 20
Views: 7316

Re: Literature on Ofeldts?

Thanks for all of the excellent replies. Based on what I've read and seen from you all, Ofeldts are really good for fast steaming. I'm still in the middle of deciding between using an Ofeldt and a 3-drum (Yarrow?) boiler, and based on what I've read it's probably going to come down to ease of constr...