Search found 1857 matches

by DetroiTug
Mon Mar 21, 2022 8:26 pm
Forum: Technical - Engines and Boilers
Topic: Better Piston Rings
Replies: 14
Views: 6313

Re: Better Piston Rings

Bart, Good synopsis.
by DetroiTug
Mon Mar 21, 2022 6:13 pm
Forum: Technical - Engines and Boilers
Topic: Better Piston Rings
Replies: 14
Views: 6313

Re: Better Piston Rings

The old adage:

Slide valves wear in
Piston valves wear out

A piston valve in good fit is far more efficient though. A slide valve with 5 square inches of face at 250 psi has 1250 pounds of force exerting on it, quite a loss in horsepower.
by DetroiTug
Thu Mar 10, 2022 3:29 am
Forum: General Steamboat stuff
Topic: Sidewheel steamer aircraft carriers in the Great Lakes
Replies: 3
Views: 3929

Re: Sidewheel steamer aircraft carriers in the Great Lakes

Quote: "All you have to do is to make a statement about the US Navy's coalburning, side wheel aircraft carriers..."

That would prompt an immediate Google search 😀
by DetroiTug
Wed Feb 02, 2022 12:59 pm
Forum: Technical - Engines and Boilers
Topic: Upscaling a Hasbrouck engine
Replies: 26
Views: 20481

Re: Upscaling a Hasbrouck engine

I ordered a set of plans for the Hasbrouck #10 engine from Ray back around 1981? They were like $7 and they came with a photograph of a completed engine and a letter from Ray thanking me for the purchase and to please send progress pictures. Never built. Still have the packet somewhere. Found his ad...
by DetroiTug
Tue Feb 01, 2022 2:08 pm
Forum: Technical - Engines and Boilers
Topic: TWIN 32 x 38 mm - steam engine for small boats or canoes
Replies: 71
Views: 95001

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

"an Ali block with liner should prove no problem''

With superheating?
by DetroiTug
Mon Jan 31, 2022 5:30 pm
Forum: Technical - Engines and Boilers
Topic: TWIN 32 x 38 mm - steam engine for small boats or canoes
Replies: 71
Views: 95001

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

''The bearing housings do not need to be steel, nor probably the engine bed. Could one use hollow tube for the pillars? Then I suppose one could possibly copy automotive practice and have an aluminium block with steel/cast iron liners. Aluminium pistons? What would our experts advise?'' Expert in tr...
by DetroiTug
Wed Jan 19, 2022 3:37 pm
Forum: Welcome
Topic: New to Forum
Replies: 11
Views: 14303

Re: New to Forum

Quote: "It's just a comedy (tragedy?!) of errors and mismanagement that continues to degrade the uniqueness of the vessel.'' It's happening at many museums, especially at our beloved Henry Ford museum in Dearborn. For the last 30-40 years they've been liquidating irreplaceable relics and swapping th...
by DetroiTug
Tue Jan 18, 2022 10:29 pm
Forum: Members' Websites and Boats
Topic: boat plans
Replies: 14
Views: 9728

Re: boat plans

Quote: "brushing on phosphoric acid and letting that dry,'' Vinegar works well to improve adhesion also. With the sandblasting it's mostly about removing the millshale from hotrolled steels. After working in and around steelfab many years, rarely was anything sandblasted prior to paint, never a cons...