Search found 920 matches

by barts
Fri Oct 28, 2011 4:58 am
Forum: Technical - non Engines and Boilers
Topic: propeller
Replies: 6
Views: 4489

Re: propeller

The larger the prop diameter, the lower the slip... ideally, for a displacement hull you'd like about 1:1 ratio of diameter to pitch, since that ratio is most efficient. This is hard to fit under a lot of hulls as the pitch is more or less determined by RPM; most steamboats end up running a lot more...
by barts
Fri Oct 28, 2011 1:56 am
Forum: Technical - non Engines and Boilers
Topic: Clutch options
Replies: 19
Views: 12186

Re: Clutch options

Hello all,I Is anyone running a clutch set up on their boat. It would seem like a good idea. Instead of having to keep the prop turning or blowing the relief valve at the dock you could just let the engine turn. There's one boat with a clutch, since its monotube boiler needs engine-driven auxiliari...
by barts
Wed Oct 26, 2011 2:05 am
Forum: Technical - Engines and Boilers
Topic: Propane Atomized Oil Burner?
Replies: 1
Views: 2317

Re: Propane Atomized Oil Burner?

Has anyone ever had some experience with this setup? Yup... this is exactly how I start the Otter's boiler from cold. Most folks w/ steam atomizing burners use a wood fire to start and as a target for their oil burner so as to keep it lit. I decided to approach the problem a little differently, sin...
by barts
Tue Oct 25, 2011 12:05 am
Forum: Technical - Engines and Boilers
Topic: rings
Replies: 4
Views: 3457

Re: rings

Thanks, should i cut two grooves? one for each ring, or two rings in one groove? I used two separate grooves on Otter's engine, which seems to work just fine. Make sure to check end gap on the rings by sliding the rings down (square w/) the bore using the piston.... if it's too tight, things may br...
by barts
Sun Oct 23, 2011 6:59 am
Forum: Technical - Engines and Boilers
Topic: Suitable Boiler for a LocoMobile Twin Simple (6hp)
Replies: 23
Views: 14221

Re: Suitable Boiler for a LocoMobile Twin Simple (6hp)

Most steamboats out this way definitely don't have Code boilers... Scotch boilers have fusible plugs. A monotube boiler built along the "flash overfeed principle" has been successfully used in steamboat w/ fancy controls.... http://www.thesteamboatingforum.net/forum/viewtopic.php?f=8&t=237 - Bart
by barts
Sat Oct 22, 2011 3:10 pm
Forum: Rally Reports
Topic: Steamboat Meet - B&W Resort - 9/24/11
Replies: 11
Views: 8532

Re: Steamboat Meet - B&W Resort - 9/24/11

Bart, Beautiful engine in Otter. The green hulled boat, is that a steel hull? If so, any info on it around? -Ron Thanks.... it's still in progress; I bought it as a box of parts a few years ago. I made a new piston, piston rod, piston valve, valve rod, and misc. pieces for the valve gear; the flywh...
by barts
Fri Oct 21, 2011 7:12 am
Forum: Rally Reports
Topic: Steamboat Meet - B&W Resort - 9/24/11
Replies: 11
Views: 8532

Re: Steamboat Meet - B&W Resort - 9/24/11

You can see a bunch of our pictures from the B & W meet here:

http://www.smaalders.net/barbie/Travels ... index.html

sample is attached....

= Bart
by barts
Fri Oct 21, 2011 3:52 am
Forum: Technical - Engines and Boilers
Topic: Suitable Boiler for a LocoMobile Twin Simple (6hp)
Replies: 23
Views: 14221

Re: Suitable Boiler for a LocoMobile Twin Simple (6hp)

The price of Code boilers is such that many of us could not justify or even afford the hobby if they were required. I've got a couple of degrees in Mechanical Engineering, and felt comfortable designing and building Otter's new boiler myself in 1996, using commercial components (end caps, reducers, ...
by barts
Wed Oct 19, 2011 4:51 am
Forum: Technical - Engines and Boilers
Topic: Suitable Boiler for a LocoMobile Twin Simple (6hp)
Replies: 23
Views: 14221

Re: Suitable Boiler for a LocoMobile Twin Simple (6hp)

I like the safety aspect of the water tubes. They also seem within the realm of home built if I borrow some favors from some talented welders. I assume that if I plan to run at 100 psi and run the hydro at 200 for 2 hours and it holds that it will be ok in service. I am more concened with getting t...
by barts
Tue Oct 18, 2011 3:54 am
Forum: Technical - Engines and Boilers
Topic: Suitable Boiler for a LocoMobile Twin Simple (6hp)
Replies: 23
Views: 14221

Re: Suitable Boiler for a LocoMobile Twin Simple (6hp)

Can you point me in the direction of plans a 35 to 40 sq ft water tube boiler ? I would like to set it up to burn both wood and oil like you are doing. I'm afraid I don't have plans for such. I've built one boiler, and just designed it from scratch. I'd chat with someone who's built either a Robert...