US Navy G and K type Engines
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- Опубликовано: 12 янв 2023
- I have been commissioned to service, operate, film and sell off the Ellsworth Collection. The G type engine will be retained. The K type engine is FOR SALE. Please contact me if you wish to buy it. AEKarnes@gmail.com
Video filming and editing by Elijah Jackson and used here with permission. 
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See the initials on the bronze casting of the throttle valve on the Type G, i.e. 'SM'. I cast and machined that throttle valve from scratch for Alex Ellsworth. It was a very interesting bit of foundry patternwork, since the core for the valve body was quite tricky.
Stewart, I am very glad to see you here. Alex Ellsworth speaks very highly of your work and it shows. I'd love to learn how to do things from you.
Thanks for the kind words! Maybe you can come out sometime to visit Keith and me. We live on the same island, about 4 miles apart. @@AEKarnes
I am an instant fan. This guy definitely knows exactly what he's talking about and obviously knows quite a bit. I am very impressed both by his wealth of knowledge and this cool collection, great job!
I need to meet this young man.
He knows his passion, and lives it well.
...fascinating part of maritime mobility which you bring to viewers...thank you, Ellsworth...thank you, fine people who designed and produced and proved these powerful 'puffers'!...
If this guy was dropped into the late 1800s or early 1900s he would be right at home what great skill and knowledge he has great video thanks for sharing
Not gonna lie, but after seeing you on that other channel going over that engine, I am very happy you now have your own channel to share your vast knowledge on.
Oh wow, I saw the documentary you did with another channel on the pump house steam engine. It was an amazing story. I only just now stumbled across your channel. Instant subscribe.
Thank You Alex. Very Cool
Fascinating. In a relatively small boat like a captain's gig, where would the engine, boiler and fuel supply (coal or oil?) be placed and how many crew members would be assigned to operate it?
I imagine coal: steady burn, and good btu value for the storage required. In a bind, wood too [just won't last as long and takes up more space]. These are true steam era engines - more modern variants burning oil to make steam need a blower system.
Mechanically these steam engines are genius. And just fun to watch.
the suit jacket.
Very nice antique marine steam engines.
The passion on this guy’s face…
Love this stuff big fan
You must have a blast operating all of these engines.
I do. It's what keeps life worth living.
Very nice engines
Super cool vid! Subbed!
That guy looks awful young to have the kind of knowledge he has on steam engines. Especially on engines that are long obsolete. Very impressive Sir. Definitely an old soul.
Great engines and video - Excellent information and a marvellous record for the future. Ask to revise the term "simpling valve" to "impulse valve" as this term is more correct. The impulse is sometimes seen engraved on a brass plate at our 1927 steamship "John Oxley". This valve is used to introduce a shot of steam into the IP or LP chest to nudge the HP piston off a dead spot. As it also backpressures the IP or HP engine, it can't really be called a "simpling valve". Perhaps the term comes from road steam plant where this is a desired feature. Some might say a steam tug engine could be asked to produce extra power in a salvage situation, but here the impulse would not help.
Impulse valve is not a term I've heard yet so on your ship that is rare. Simling or starting valves is what they are usually called. To divert the exhaust of the HP or other cylinders requires a more complex valve with intercepting capability and I've not seen that often on marine engines except where extra power for sustained periods of time is required. I did see a double, and a quad, that could turn into entirely high pressure engines with the valve in simple/intercept position.
@@AEKarnes Hi - Sorry for delay - lots going on in my life at the moment. If you look at the controls of the Waverley, the IMPULSE control is engraved. The controls on the 1927 steamship John Oxley that I work on also has the IMPULSE control engraved. Hope this helps - love your site - Binge watching! PS - Sydney Heritage Fleet has 3 steamships - 1902 steamer lady hopetoun has a yarrow boiler (new build identical) and a high speed Simpson Strickland triple. 1902 tug Waratah has a compound engine and scotch boiler. John Oxley is a larger coastal stemship under restoration and refloated 2022.
@@user-vn8so9rf3d My late father fired NZ Railways A compounds during WW2, they used to call the impulse valve the "God Almighty". Actually on the A, it might have been a true simpling valve, I'd have to look it up. My own 30ft steam launch has a compound twin with just an impulse valve, all that is needed to kick it off HP dead centre. I've visited the Sydney workshop a couple of times.
Amazing content Alex. Your are a wealth of knowledge and an asset to all things mechanical in our digital world.
My job is making sure the human condition and how it has been effected by our technology does not degrade further due to that digital world.
3:05 Nuts on the valve gear eccentric are loosey goosey.
Would love to put one of those engines in a house boat.
This IS my new favorite channel!!! What type of oil is used for this type of engine??
Route 1982 it's been a year on the Missouri in Long Beach overhauling it I was a marine machinist AKA mechanic we unbolted in the rigors pulled out a double reciprocating feed pump this thing seems like it was 15 ft tall The rigours Weave this thing up through ladder Wells like it was a Rubik's Cube jigsaw puzzle anyways the pump is the damndest thing you ever saw and yes they put it back if I remember right but I'm not sure that's been so long ago
Wonder why they made them with such a small crank throw?
where can i get a good hi performance miniature steam and boiler for a r.c. project ?
Is there any way to make a simulated propeller/condenser load to lessen the chance of damage?
Yes, but running without this won't cause damage.
Гайки подтяни на эксцентриковой тяге!
i have a similar looking engineer's oil can
What kind of boots are those?
Why is it that these engines run to rough without a load whereas stationary engines run perfectly smooth?
It's a good observation. These engines are made to drive a large propeller very hard against a fairly constant load, and they are generally much higher specific output than a stationary engine, as they have more valve timing advance (lead, in the old language) to protect their crank and wristpins and crossheads. You need recompression and early steam admission on an extremely hard working marine engine to protect it.
Wear a sailor's cap.
this is neat as a novelty, but the fact we are still reliant on this base technology is ridiculous. we had electric motors working at this same time... yet we were told "this was the best thing at the time"... we were fooled.
As I have had to tell about a thousand other people before you, electricity is only a way to transfer power. A generator, electric grid and motor is the same thing as a pulley system, a lineshaft system etcetera. It brings the power from the engine to the thing the engine needs to drive, no more.
Electricity is a transmission, not a power source. It seems the general population needs to re-learn this because they are so distant from the reality of how things work now. Buying into futurism without understanding technology will only lead you into self delusion. All electric motors of that era which you speak of were receiving power from generators turned by steam engines or in some rare cases hydro power. These days, the same is true, with steam power plants turning steam turbines still providing the reliable base load of the world's electric grids.
@@AEKarnes Well said and anyone who thinks that these old engines were "simple, or" rudimentary or even basic or uncomplicated doesn't know much about steam engines. These engines were extremely well thought out complex pieces of art that were ahead of their time and far more complicated than any simple electric motor ( by the way I like the way you had to simplify the difference between an engine and a motor for the undereducated about the subject, although there is no telling if they "get it" or not but great job on the whole subject and please continue with your work... those of us who understand can enjoy and learn from it.
As an engineer, I second this. Electric would not have been practical for this particular application.
@@joshwright9202 I consider my channel primarily a misinformation fighting channel. There is more misinformation, myth, fear, politicization and blatant lying in engineering than there is in any other institution currently, and that is saying something.
@@AEKarnes Godspeed.
A bunch of useless info.