Search found 1923 matches

by fredrosse
Thu Apr 16, 2026 2:38 am
Forum: Welcome
Topic: New Member
Replies: 3
Views: 47137

Re: New Member

Welcome to the forum. Plenty of technical information here. Steamboats come in many forms, from about 12 feet for a single person launch, up to larger boats approaching (some exceedng) 40 ft length. Do you have a type or size boat you are considering? Will you be making the machinery or purchasing ...
by fredrosse
Tue Apr 14, 2026 1:43 pm
Forum: Welcome
Topic: ANOTHER steam canoe
Replies: 1
Views: 43139

Re: ANOTHER steam canoe

Welcome to the forum. I too am slowly building a Stuart No 4 type engine for an 11 foot canoe type boat. Stuart No4 upper cylinder assembly, with lower end having a Sthll crank/rod, with 0.625 inch diameter ball bearing pillow blocks on the crankshaft, and a roller bearing connecting rod big end ...
by fredrosse
Sat Feb 28, 2026 8:04 pm
Forum: Technical - Engines and Boilers
Topic: I Made an Ofeldt Boiler Calculator/Simulator
Replies: 4
Views: 64699

Re: I Made an Ofeldt Boiler Calculator/Simulator

A couple more suggestions:
1. In the PLAN/33,000 = HP, to determine "N"

A. Engine Number of cylinders Input (any Integer value)
B. Single or Double acting (gives a value of 1 or 2)
C.Design RPM (any value)

Calculated Value, N = A x B x C

The path delineated above is a clarification for some, or ...
by fredrosse
Sat Feb 28, 2026 2:31 pm
Forum: Technical - Engines and Boilers
Topic: I Made an Ofeldt Boiler Calculator/Simulator
Replies: 4
Views: 64699

Re: I Made an Ofeldt Boiler Calculator/Simulator

Your work here is quite good, using the older conventions for steam engine sizing and performance, with only single expansion engine types. I do have some suggestions relating to your program:
1. The sliders for defining various inputs (bore, stroke, etc.) limit the user to fixed values, and I would ...
by fredrosse
Sat Oct 25, 2025 1:28 pm
Forum: Welcome
Topic: Hello from Florida
Replies: 8
Views: 125610

Re: Hello from Florida

Good to have you join here, with much practical knowledge about small reciprocating steam plants. Did you know that steam power production is presently the largest source of power generation in the world? Steam engines, in the form of steam turbines, generate about 70% of all the electricity in the ...
by fredrosse
Sat Aug 09, 2025 6:05 am
Forum: Sales and Trade
Topic: safety valve
Replies: 2
Views: 166612

Re: safety valve

Could you please attach a photo of the nameplate that is attached onto the valve.
by fredrosse
Fri May 30, 2025 3:20 am
Forum: Technical - Engines and Boilers
Topic: Service bolt in the cylinder cover
Replies: 12
Views: 446268

Re: Service bolt in the cylinder cover

Compounded Steam Cylinder Oil, great stuff for the machinery, but should never enter the boiler.
by fredrosse
Thu May 29, 2025 3:37 pm
Forum: Technical - Engines and Boilers
Topic: Service bolt in the cylinder cover
Replies: 12
Views: 446268

Re: Service bolt in the cylinder cover

I also oil my engine internals quite liberally when finished with a steaming run, as the engine valve gear will often get seized up without liberal oil after shutdown. The Margaret S steam plant is non-condensing, so I just use compounded steam cylinder oil for this duty.

In condensing steam ...
by fredrosse
Tue May 20, 2025 4:22 am
Forum: General Steamboat stuff
Topic: Steaming in the 21st Century
Replies: 4
Views: 249338

Steaming in the 21st Century

Boating has a special appeal to those of us who want to get away from the well traveled paths of more common endeavors. The appeal of being on the water, getting away from the more common recreational pursuits found in today's society has much to attract our attention. Boating has great appeal based ...
by fredrosse
Mon Apr 21, 2025 5:09 am
Forum: Welcome
Topic: New Member!
Replies: 7
Views: 212605

Re: New Member!

Welcome to the forum, and thanks for the compliment. Much help in your future with steamboats can be found here, from a minimal conversion of a small existing sailboat hull to obtaining a much larger traditional steamer. Where are you located, and what is your background? Best wishes in your future ...