Search found 726 matches

by BigDumbDinosaur
Wed Feb 13, 2019 8:40 pm
Forum: The Junk Drawer
Topic: steamin10 (Big Dave)
Replies: 43
Views: 1260

Re: steamin10 (Big Dave)

Harold_V wrote:
Wed Feb 13, 2019 3:41 pm
I received an email from Rose. Dave's heart was irregular, with doctor's prognosis of a chance of survival not favorable. He was removed from life support and passed away around 12:30 today.
Life just sucks sometimes. This is one of those times. :cry:
by BigDumbDinosaur
Wed Feb 06, 2019 1:44 am
Forum: The Junk Drawer
Topic: steamin10 (Big Dave)
Replies: 43
Views: 1260

Re: steamin10 (Big Dave)

Readers, Thought you might like to know that our good friend steamin10 is in the hospital...He has been retaining water around his lungs... The "water around [the] lungs" thing sounds like pleural effusion. Pleural effusion is the buildup of fluid in the pleural cavity, which is the space containin...
by BigDumbDinosaur
Tue Feb 05, 2019 1:14 am
Forum: Live Steam
Topic: Uh... help me verify?
Replies: 8
Views: 754

Re: Uh... help me verify?

Greetings, Does anyone out there live within a short drive of Williamsport, PA? I successfully bid on Maxitrak loco from a seller there. His profile and activity checked out fine. I will be near there on business in 6 weeks so pickup made sense. However, communication just got strange and “Nigerian...
by BigDumbDinosaur
Thu Jan 31, 2019 2:25 am
Forum: Riding Scale Railroading
Topic: Gas hydraulic schematic
Replies: 14
Views: 850

Re: Gas hydraulic schematic

This system is high-volume low-pressure so it never reaches high pressure, Under full load I think it reaches 475 PSI before the wheels slip, rail systems use this for a long time I know of four engines this use the same setup haven't failed yet, and as for the two stage pump there is a pressure se...
by BigDumbDinosaur
Sun Jan 27, 2019 4:15 pm
Forum: Riding Scale Railroading
Topic: Gas hydraulic schematic
Replies: 14
Views: 850

Re: Gas hydraulic schematic

For flow control it's just a ball valve roughly 3/8 to 1/2 in, forged bronze body 600 working PSI, John do you know where Neols Club is located in Medina County, they have a meeting Second Sunday of the month if you can come I can meet you there 600 PSI is much too low. Pressures in these systems r...
by BigDumbDinosaur
Sun Jan 27, 2019 2:58 am
Forum: Riding Scale Railroading
Topic: Gas hydraulic schematic
Replies: 14
Views: 850

Re: Gas hydraulic schematic

...with a 2 stage pump from Northern Hydraulics ( never run ). You will probably not care for the way that pump will behave. The "gear ratio" between high flow, low pressure and low flow, high pressure is 1:4, and the transition from one state to the other occurs at around 600-800 PSI, which means ...
by BigDumbDinosaur
Tue Jan 22, 2019 12:28 am
Forum: General Discussion
Topic: silly question about movie steam locomotives
Replies: 7
Views: 728

Re: silly question about movie steam locomotives

liveaboard wrote:
Mon Jan 21, 2019 6:15 pm
I didn't know they had air compressors; what was the compressed air used for?
Brakes?
Air brakes.
by BigDumbDinosaur
Sat Jan 19, 2019 12:41 am
Forum: Riding Scale Railroading
Topic: Hydraulic/Hydrostatic Oil/Fluids?
Replies: 12
Views: 916

Re: Hydraulic/Hydrostatic Oil/Fluids?

Most of the specs I'm reading online for the hydraulic motors and pumps call out fairly basic SUS (viscousity range) requirements for hydraulic oil/fluid. Any particular product that is preferred? In most cases, a quality motor oil is suitable. In my F7, I use 10W-30, the same as I use in my automo...
by BigDumbDinosaur
Fri Jan 18, 2019 12:16 pm
Forum: Riding Scale Railroading
Topic: 8hp vs 16 hp
Replies: 25
Views: 1643

Re: 8hp vs 16 hp

Nik3v wrote:
Fri Jan 18, 2019 10:33 am
So I would know what fittings to order.
I was going to attach some Parker catalogs for you but the Chaski board software apparently won't allow the upload of a PDF file.
by BigDumbDinosaur
Fri Jan 18, 2019 12:13 pm
Forum: Riding Scale Railroading
Topic: 8hp vs 16 hp
Replies: 25
Views: 1643

Re: 8hp vs 16 hp

There’s something I hadn’t even thought about. These are set up in parallel with a tee and lines to each truck. Would plumbing them in series be a better choice? I do understand the extra restrictions in elbows, tees, and such. I know about electric in series and parallel, but not so much in fluid....
by BigDumbDinosaur
Fri Jan 18, 2019 12:09 pm
Forum: Riding Scale Railroading
Topic: 8hp vs 16 hp
Replies: 25
Views: 1643

Re: 8hp vs 16 hp

Not to be too pedantic, but the correct term for those two oily things with the fins that make noise and horsepower is "engine," not "motor." :D In mechanical engineering, a machine that converts the chemical energy of fuel into kinetic energy is called an engine or prime mover. A machine that conv...
by BigDumbDinosaur
Fri Jan 18, 2019 2:12 am
Forum: Riding Scale Railroading
Topic: Signal Control Enclosure For Landscaped Areas
Replies: 7
Views: 778

Re: Signal Control Enclosure For Landscaped Areas

At the ILS, we use NEMA enclosures that are basically sealed PVC boxes. However, all are ventilated and have fans to keep air moving, especially on hot days.