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She's braver than I am!

Sorry I don't know.

Yes, steam power. The track is dual 5" and 7.25" gauge, hence the extra rail.

@@69woodburner Wow amazing

Sorry Neil. I was second in the queue. It is gorgeous. Hope to run at Clitheroe tomorrow afternoon.

It isn't particularly powerful. The turbine is understood to produce about 250W. The main issue is putting the power down as only the front bogie is driven. Any significant load and the wheels spin. The nozzle valve works as follows: imagine three banjo connectors together, fed steam down from one end. The outputs are controlled by withdrawing a plunger so the outlets aren't obscured. Ie. 0, 1, 2 or all 3 nozzles. The "regulator" is a stop valve only.

@@69woodburner Thankyou! Very clever design.

The reduction is of the order of 30 to 1. The drive is direct,but there's a dog clutch that is disengaged to warm the turbine initially. Otherwise, the driver gets a face full of scalding condensate from the chimney. The reduction is by toothed belts and roller chains. The three axles are coupled by chains. Sadly, the builder, who was ex Rolls Royce Aero engines, is nolonger with us. The turbine in the video is a single stage Stumpf of around 5" diameter. It has three steam nozzles controlled from the cab. There is a single, simpler, single nozzle turbine on the same shaft for reverse. This is used for stopping by using it to take energy from the rotation turbine mass. That can be doing 30k rpm.

Thanks. I don't actually know the minimum radius, but it will be ridiculously small for a 5" gauge loco. The bogie centres are 5" and the wheel are only 2.625" diameter. Accepted practice from here: - www.rideonrailways.co.uk/paul/building/page16.html suggests that minimum of 8.33 feet would be acceptable and at shunting speed 5 feet . It certainly isn't bothered by the tightest spot on the track shown above, which is coming off the steaming bay to the main line, that bit sometimes derails mainline loco models due to the fixed wheelbase and the articulation required of the leading and trailing pony wheels. One had trouble with the firebox being in the way! Good luck with the build.

​@@69woodburner Thanks for the information. It will come in handy!

@user-oe8uk7ky8s no problem. I hope you get one built. Mine causes a stir wherever I run it in the UK as they're not exactly common here. I've always loved quirky design locos.

It certainly is. This loco causes a stir wherever I take it. The hobby has floated my bout for a lot of years now. the biggest problem with the turbine is that the turbine rotor can be 30000 rpm and contains a lot of energy. You can't just close the throttle and stop, you have to apply steam to the reverse turbine on the same shaft to dissipate the energy. You can hear the louder turbine noise at the end of the clip around 3.36.

Hi John. You are absolutely correct. The turbine is a single stage Stumpf with a reverse turbine on the same shaft to stop her. You can hear the louder noise from it at the end of the run. There is a dog clutch to allow warming the turbine up, but after that it is direct drive. She has a voracious appetite for both coal and water, with a grey haze from the chimney if fired on Welsh steam coal. Working pressure is 100 psig. She has two vertical Southworth 6" water pumps for boiler feed, only one of which was fitted in the video. There is a double acting hand pump in the rear bogie, which is un-powered.

@@69woodburner Thank you very much for the reply very interesting, may I ask another question, is the boiler a normal fire tube or water tube, as normally steam turbines are fed by water tube boilers as they generate more steam quickly!! As for myself I am a stationary engine collector I have about 130 engines some of which are steam!! ruclips.net/video/iyvqs5Fb4Oo/видео.html

@John Hili you're welcome. The boiler is a conventional firetube loco boiler with radiant superheaters. The forward turbine has three nozzles and the reverse just one. I have the thermocouple to measure the steam temperature as it goes to the nozzle valve, but I have never got around to it. The backhead has what looks like a regulator, but is in fact a main stop valve.

Thank you.

All the best with your build.

It will be in the car even if I don't run it.

@@69woodburner Oh, Brilliant! Hopefully I will see you there (:

@@roseroserose588 I'll have to make an effort to steam it for you.

@@roseroserose588 I'm sorry I didn't get to RVLS yesterday. I understand you were asking after me. The forecast was horrible and completely wrong, so I was reluctant to drive 130 miles to get wet

@@69woodburner That's understandable! The folks there said that you'd planned to but had decided to not bother with the weather. Don't worry, though - I'm joining as a member so I can drive my polly 1 more regularly and I'm sure we'll run into each-other (:

Hi Wes. I didn't build this one. It was purchased with a seized engine and as a lot of loose parts, as it says in the description above. I have the original Shay book and the information is very good. However, even a 7.25" gauge version would not be a big engine considering what you wish to do. I would perhaps suggest looking at a narrow gauge prototype if you are intent on doing serious work.

@@69woodburnerthanks, my intent was to modify the plans to atleast 15 in gauge otherwise just like you said it would be far too tippy under load to be of any use

@@wesbrackmanthercenthusiast4695 there's this in 7.5 www.ngshay.com/

Sorry. I've never listened like that.

Thanks! Just subscribed to your channel. 🙂

Yes it is a Kozo Shay. I don't like the universal joint design and have it in mind to design some better, more prototypical joints.

Further to the UJ issue. I have had a better look and cannot fit the type I fancied making without a lot of other changes. I have come up with a plan to improve the type fitted.

Join your local club and start to build one.

How where

That's a shame - hope you enjoyed the weekend though.

I did enjoy it also the 24 has a problem the controller plug keeps coming out next time we go anywhere with it we will take a rubber band as the blue somthing we used did do the job but could have been better once it stopped on the mainline on the level crossing I had a push by a Britannia to diesel depot by then it was working again :/ the rest of the day was so boring but the damage caused when it crashed only broke of details and broke things like a door and rear buffer beam no damage caused it to stop working

Hi, thanks for the interest. This is a 5" gauge turbine powered Garratt type loco, built by the late Peter Southworth who is driving in the video clip. This is the 3rd version he built and has a single stage Stumpf turbine with 3 nozzles for forward. There is a more simple reverse turbine on the same shaft with a single nozzle. The boiler has a working pressure of 100psi, there is a main stop valve where you would normally find a regulator. The front bogie has a dog clutch to disengage the turbine for warming up and clearing condensate. During normal operation it is in permanent engagement. The power is controlled by choosing how many nozzles are fed with steam from 1 to 3. The turbine runs at around 30k rpm and develops 250W of power. To stop you have to close those and open the reverse nozzle. There are 2 boiler feed pumps to keep the water level up.You have to drive with the steam blower on slightly as the exhaust from the turbine has insufficient energy to draw the fire hard enough. She murders coal and water but is very unusual to see and hear. I'm lucky to be the custodian of this unique loco, which of course is full size and not a model of anything larger. There is a Mk4 turbine bogie which has a 2 stage Curtis turbine, but this is not as effective, I suspect the boiler pressure isn't high enough for the second stage to cause more than drag. Happy to answer any questions you have.

Here is a link to me having a go before I became the owner. m.ruclips.net/video/UjIQ95uAkW0/видео.html

@@69woodburner What is this madness? We (dad and I) did some serious looking at the various turbine driven model loco's in the late 80's (before the French 7.25" one was in Model Engineer), but never progressed beyond eying up the concepts. I'm the custodian of a Darjeeling D class in 5", that needs finishing (so 0-4-0-0-4-0, at ~3 3/4" scale), and are working on an at home railway (Canadian Puget Sound II). Our ideas mostly revolved around something like a NYC Hudson Boiler supplying steam. When we had custody of a loco with a bit of a hunger problem, we said it belonged to the "New River Coal Company", because it needed a River AND a coal mine ! (as do Armstrong rollers in full size...). It turns out, that the rebuilt (not by us) chassis had a few little problems. Like the piston valves were short. 0.125 or so short... Mostly, it's amazing how inefficient a steam engine can be and still drag me around.

@@jamespowell7302 HA ha. Yes it is unusual to say the least and causes a lot of interest wherever I take it. This engine is certainly one from the New River Coal Co. fleet, it murders coal and water. There is a reasonable description above. Peter started by building an 0-6-0 and went through 2 different Sweet Pea boilers before switching to the Garratt layout. It causes a stir when I take it visiting. I also have a Darjeeling class D based loco in 3.5" gauge and a friend has a 5" one to complete. My baby one has a boiler 5" longer than scale and is 5 feet 2 inches long in working order. It is essentially based on two 0-4-0 Simplex motion sets. In British terms it has the boiler of a 5" gauge pacific and the cylinders the size of a %" GWR King.

Hi Tom, the driver is a model engineer friend of mine. It was a lovely day, I was on the footplate from 8.00 until 18.00 with a break for lunch. The weather was very wet until lunchtime, but the sun came out in the afternoon and we were able to have the cab roof open.

I’d love to do that one day.

Yes, the tender is untouched apart from the yellow bits, but the loco was repainted a few years ago.

You don't see many, but Dad fancied it because it was different.

Thanks, she's an old lady now, started in 1957 and first finished in 1971by my Dad when I was a teenager. She managed 3rd place in the Curly Bowl just before Dad passed away in 2011. Since this was recorded I have made a kneeler bogie trolley inspired by racing sidecar outfits. It carries water and a coal bin and appeared in the Garratt at Morley video, when I first ran than loco. The trolley was unfinished at the time. It still causes some amusement, but is quite comfortable for someone of similar height to me. Incidentally, the Garratt was built by the same chap as the Hunslet in the video at made at Sheffield.

@@69woodburner What is the Curly Bowl? A locomotive beauty contest? What took your dad so long to build it? It's one of the more simple ones isn't it?

Curly Bowl is properly called the LBSC Memorial Trophy held in UK for engines described by LBSC. It focuses on the way the engine runs rather than cosmetics. Dad was an amateur like myself, it was his first loco.

Yes, you're right. The concrete pillars were turned through 90 degrees and angle iron clamps were made to fit on the tapered pillar tops. This lowered the remains of the original track to allow the new track to fit on top without being excessively high. The new rails are the same as the ground level and way over scale for the smaller gauges. Originally the track was on top of the pillars on wooden packing blocks. The old track had 2.5", 3.5", 4.75", 5" and 7.25" and I believe accidentally one of the smaller gauges such a gauge 1.

Yes, I've got to finish the water cylinder and make the valves. Going back in the workshop now.

It was only at the start of each cut. The surface finish of the teeth is quite acceptable.

The builder is currently building the supercharged version.

dgmarklin Sorry I don't know as I was a visitor to West Riding Small Locomotive Society for the Curly Bowl.

I think about 1 in 40 up the bank from the station.

That is by the hedge

Hi there and thanks. Charlie was the shooter and editor as written above - he is a lovely bloke and has done a nice job. Some was filmed by him tracking on a miniature HST he has built. Chris with the blue Sweet Pea is the only person remember seeing wearing a mask. Probably not a bad idea as steam locos issue a fine cloud of ash particles from the chimney when pulling. You can also see my head is in the exhaust steam cloud driving the American loco.

He suffers from asthma and it's aggravated by the smoke -- hence the mask to filter the particles out.

Cheers. Well worth a visit.

+Bradley Berthold . I can't remember now, I seem to remember that was the basis of it - I looked up the calculations in a wartime edition of Machinery's Handbook

You make one and put it on a load cell. When it breaks, that's the limit minus 20% for overhead.

Sorry Lawrence, I don't have time to do much at all at the moment. Caring responsibilities for 84 yrs old mother wastes a lot of my time.