Search found 1863 matches

by fredrosse
Sat May 07, 2022 8:29 pm
Forum: Technical - non Engines and Boilers
Topic: Another Sidewheeler Building
Replies: 13
Views: 2238

Re: Another Sidewheeler Building

2nd picture
by fredrosse
Sat May 07, 2022 8:28 pm
Forum: Technical - non Engines and Boilers
Topic: Another Sidewheeler Building
Replies: 13
Views: 2238

Re: Another Sidewheeler Building

A long time needed to make the sidewheel splash guards, built up with epoxy joined Mahogany veneer layers and a marine plywood base. The structural part of the guards is all made from IPE, known as the worst wood to work with, being ultra strong, ultra heavy (it will not float in water), ultra expen...
by fredrosse
Tue May 03, 2022 4:48 pm
Forum: General Steamboat stuff
Topic: Fast Steam Launch
Replies: 10
Views: 320

Re: Fast Steam Launch

I think the sequence of picture uploads is the last upload is the first picture of your post.

Great to learn about the fast steamer, I thought the 4000 horsepower quadruple expansion triple reheat yacht "Arrow" had the record for speed.
by fredrosse
Sun Apr 03, 2022 2:56 pm
Forum: Welcome
Topic: New member
Replies: 10
Views: 1306

Re: New member

Virtually all steamboats of today use steam pressures in the vicinity of 6 to 11 Barg, (90 - 160 PSIG), which works very well with engines exhausting to atmosphere, as well as with condensing service and vacuum exhaust. If you wish to use very low steam pressure of about 0.5 to 1.5 Barg (7 to 21 PSI...
by fredrosse
Sun Apr 03, 2022 2:31 pm
Forum: Welcome
Topic: New member
Replies: 10
Views: 1306

Re: New member

"In Finland boilers under 1.5 bar (72.5 psi) absolute pressure (0.5 bar gauge pressure) are not considered as pressure devices that need inspection. If condensator is used, that would give good enthalpy difference, even better if steam is superheated. Steam volumes would be comparatively huge, but h...
by fredrosse
Tue Mar 29, 2022 10:44 am
Forum: Welcome
Topic: New guy on the forum
Replies: 5
Views: 529

Re: New guy on the forum

Hello Curt and welcome to the forum. Getting a steamboat together can cover a large range of spending. For a boat in the 18-22 foot range a good used steamboat can be had at reasonable prices, depending on what is considered reasonable. Finding one with Corliss rotary valve gear will be quite diffic...
by fredrosse
Sat Mar 26, 2022 5:21 pm
Forum: Technical - Engines and Boilers
Topic: A Funny Looking Slide Valve
Replies: 7
Views: 645

Re: A Funny Looking Slide Valve

Excellent work, as usual from you. The oil slots on the slide valve is new to me, although I have only been involved with the study of steam engines for 70 years now.
by fredrosse
Fri Mar 25, 2022 6:02 am
Forum: Technical - Engines and Boilers
Topic: TWIN 32 x 38 mm - steam engine for small boats or canoes
Replies: 60
Views: 10493

Re: TWIN 32 x 38 mm - steam engine for small boats or canoes

Additive fabrication, saves material and machining difficulties.
by fredrosse
Tue Mar 15, 2022 12:14 am
Forum: Technical - Engines and Boilers
Topic: Better Piston Rings
Replies: 14
Views: 1307

Re: Better Piston Rings

perhaps "Clupet Rings"?
by fredrosse
Sun Mar 13, 2022 7:28 am
Forum: Technical - Engines and Boilers
Topic: Valve Gear Simulation
Replies: 14
Views: 1624

Re: Valve Gear Simulation

Don's writings... "The primary saviour comes in many variations of the Hackworth family of gears and near relatives like the Bremme and Greenly lever systems." This refers to the ability of the Bremme gear to properly to be a "saviour" of Hackworth-like valve gear which has inherent error in timing ...