Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Next, on to the rather diminutive little sister of the prior offering, that actually has quite a voice considering the small diameter of her wheel, which provided but little sustain. She is axially fed from the rear and tangentially exhausted up front which is somewhat unique in this lineup, but she performs well with little volume on only moderate pressure, so works well for me and my limited capabilities.

Here then .... the ST-10:

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Here now, let me introduce another one of the outstanding voices in the choir. Possessing a large diameter open housing and spoked wheel with shallowly cupped fins, surrounded by a tight fitting circumferential frame, this tangentially fed singer is well matched by the Noise Maker in volume, range and sustain, thus it is a near toss up which is the better singer.

Please greet the attractive .... JK-250:

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Next on the docket is another heavy breather, but she needs to be as she carries a built in load that does do a bit to limit her range and sustain, especially at the top end. As you may note, this is the only turbine in my collection to sport the suffix G for generator, but I believe this basic model came in three versions. The base unit sans suffix with no add-ons ... the one I have which is the G model .... and also a model designated G/L for generator/light, that included an attached light bar to give the generator something to do. While she is somewhat demanding of volumes of air to breathe, she does produce effectively on what I can provide her, and sings well for all that. Fully housed, tangentially fed and axially exhausted, she definitely lights my lamp!

Here now is the .... TS-315 G:

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Great collection of turbines, the sound always brings the dental drill to mind.

And now finally on to the last, and by far the smallest, but certainly not the least as concerning voice, the little sister of the previous turbine, and the Princess of the Choir, capable of hitting the highest notes, being somehow mysteriously rated at 100,000 rpm, and easily singing on very little air being tangentially fed and axially exhausted out the back. She has a unique spider mount with four arms that attaches by threads around the front shaft bearing boss, but remains unmounted (vestal virgin perhaps?) thus far.

There is an interesting aside for this turbine, in that shortly after acquiring her, I wound her up and broke her, being that the turbine wheels position was only held in place by a piece of neoprene tubing on the output shaft, which simply wasn't up to the task at hand, such that as I wound her up, the shaft walked back, slipping through the neoprene, until the blades contacted the back wall of the chamber and sheared one of the vanes off. Because of the exhaust design, that sheared off vane immediately exited the exhaust thus keeping it from wiping out the rest of the turbine. I contacted Richard and explained the situation, and he humbly accepted all blame, and immediately replaced the turbine fan assembly, and threw in a couple of spare bearings as well in case they had been damaged by the seriously out of balance condition that existed during the wind down. I replaced the neoprene tubing with a Dubro shaft collar on the new assembly, and all has been fine ever since!

Old broken turbine wheel shown in photos.

Now meet the little gal with a voice bigger than she is  ...  tiny Miss AM-10:

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Awesome Show Daniel!

The Grand Finale was well executed.

I really enjoyed your Table for GPU 2020. 🤠

Thanks to all that have happened by, and especially to those who have taken the time and considered the content enough to commented on what they have seen and heard here.

But for now .... The person of undefined stature, physique, and gender, has exhaled sonorously across their vocal cords !!!

.... unless of course there is a deafening call for an ENCORE !?!?    ;c)