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

The Regular Stuff: Chat, Buy, Sell, Off Topic, etc. => General Discussion - Model & Toy Steam Engines – Stirling Cycle – Flame Lickers – Small Antique Originals => Topic started by: Nick on August 28, 2019, 12:50:16 am

Title: Re: How Slow Can You Go? (on steam)
Post by: St Paul Steam on October 02, 2019, 06:11:55 am
very nice Raphael.
Title: Re: How Slow Can You Go? (on steam)
Post by: Nick on October 01, 2019, 09:56:11 pm
Nice one Raphaël
Title: Re: How Slow Can You Go? (on steam)
Post by: Raphael on October 01, 2019, 01:33:16 am
Bonjour,
Here is a slow machine... in a paddleboat :
https://www.youtube.com/watch?v=133sYTE7i9U
Title: Re: How Slow Can You Go? (on steam)
Post by: Nick on September 30, 2019, 04:26:49 pm
Very nice Dennis, looks like somewhere in the 32-34 RPM area  8)
Title: Re: How Slow Can You Go? (on steam)
Post by: Scorpion2nz on September 30, 2019, 02:52:58 pm
Quote from: St Paul Steam on September 30, 2019, 12:53:24 pm
That is a nice Stuart Beam engine & something to be proud of. Stuart's take ages to break in properly.

I am pleased with how it turned out considering what i started with
Title: Re: How Slow Can You Go? (on steam)
Post by: St Paul Steam on September 30, 2019, 12:53:24 pm
That is a nice Stuart Beam engine & something to be proud of. Stuart's take ages to break in properly.
Title: Re: How Slow Can You Go? (on steam)
Post by: Scorpion2nz on September 30, 2019, 11:20:10 am
This was a couple of weeks ago
Still running it in
Skip the shit  and go to around 3.30 .

https://www.youtube.com/watch?v=37DHF06BF4Q

Cheers
Dennis
Title: Re: How Slow Can You Go? (on steam)
Post by: classixs on September 29, 2019, 12:23:16 pm
Quote from: Nick on September 28, 2019, 11:56:37 am
...Now THAT is IMPRESSIVE!!...


Certainly is, well done Bruce !!!
Title: Re: How Slow Can You Go? (on steam)
Post by: oilfield_steam on September 28, 2019, 06:16:05 pm
Great thread.
Title: Re: How Slow Can You Go? (on steam)
Post by: Nick on September 28, 2019, 11:56:37 am
I didn't count, but see you wrote 27 rpm's on youtube. Now THAT is IMPRESSIVE!!

AWESOME Bruce!!  8) 8)
Title: Re: How Slow Can You Go? (on steam)
Post by: St Paul Steam on September 28, 2019, 11:10:06 am
my slowest with the J42R...

https://youtu.be/deTvISRwL0w

I may have to break out the "green machine" & see what it'll do...
Title: Re: How Slow Can You Go? (on steam)
Post by: Nick on September 28, 2019, 01:46:27 am
Quote from: classixs on September 28, 2019, 01:40:54 am
Impressive to see one of these going that slow, thanks for sharing.

...but, it really needs oil Nick, my 85´s is much faster at 15 psi  ;)

HAHA  ;D  yes, I had it pegged. I tried running on low flame with throttle wide open as that's how I do my low speed runs with electric Jensens, but I was stuck around 100 rpm's. I'm thinking it needs a run with a heavy cast 35 flywheel...
Title: Re: How Slow Can You Go? (on steam)
Post by: classixs on September 28, 2019, 01:40:54 am
Impressive to see one of these going that slow, thanks for sharing.

...but, it really needs oil Nick, my 85´s is much faster at 15 psi  ;)
Title: Re: How Slow Can You Go? (on steam)
Post by: Nick on September 27, 2019, 11:52:45 pm
Not my slowest run, but probably one of the slowest 85's out there  ;)

73 RPM's

https://www.youtube.com/watch?v=I3a9exjJxwQ
Title: Re: How Slow Can You Go? (on steam)
Post by: Swift Fox on August 28, 2019, 01:34:30 pm
Here are a couple of my engines on slow tickover under steam:

https://www.youtube.com/watch?v=XpAE8GY8tnk

https://www.youtube.com/watch?v=aeWBXqmvFKE

Not as slow as your #50 though Nick, i bet your MSM Pevensey runs slow. ;)
Title: Re: How Slow Can You Go? (on steam)
Post by: Nick on August 28, 2019, 01:22:45 pm
I should have filmed it for at least a minute, but I know it did go for 2 or 3 minutes before the condensate in the exhaust stalled it. After clearing that out it ran about the same speed for another couple of minutes.

I will disqualify my above run as it's an old video, so let's see some new slow runs  ;)  I'll try to get one in tonight...
Title: Re: How Slow Can You Go? (on steam)
Post by: Stoker on August 28, 2019, 12:58:44 pm
That is way slow and going to be tough to beat! Likely it will take a big machine to be able to have the mass and inertia to manage it!

I clocked the last ten revolutions at ~ 26.08 RPMs.

Nicely done Nick!!!
Title: Re: How Slow Can You Go? (on steam)
Post by: Roscoe on August 28, 2019, 09:39:05 am
Love watching the action of the mechanism at that speed.  Beautiful engine Nick. Maybe some day I’ll get one.
Title: Re: How Slow Can You Go? (on steam)
Post by: Swift Fox on August 28, 2019, 09:03:11 am
Very impressive Nick!
Title: Re: How Slow Can You Go? (on steam)
Post by: Hero on August 28, 2019, 08:13:17 am
I can make mine stand still....😋
Title: Re: How Slow Can You Go? (on steam)
Post by: SeeSteam on August 28, 2019, 07:57:42 am
With it slow, one can see the in stroke being a little less power than the out stroke. Slightly less volume due to piston rod.
 It's like that on full size engines too. A few weeks ago, I observed a 90hp Minneapolis TE doing that.
Title: Re: How Slow Can You Go? (on steam)
Post by: IndianaRog on August 28, 2019, 06:48:20 am
Nick, that will be tough for anyone to beat...wow!

Rog
Title: Re: How Slow Can You Go? (on steam)
Post by: St Paul Steam on August 28, 2019, 05:00:40 am
oh my, that is nice and sloooow Nick (man ,I love that engine) I believe my slowest runner is the "green machine" but I don't remember what it'll do anymore ?
Title: Re: How Slow Can You Go? (on steam)
Post by: Nick on August 28, 2019, 04:15:21 am
Please share the video when you do Jan, even if it doesn’t quite beat this  ;)
Title: Re: How Slow Can You Go? (on steam)
Post by: classixs on August 28, 2019, 03:37:45 am
So cool Nick !!!

Love to play around with the engines like this myself, might have to pick up the challenge, and see if anything of mine will beat this impressive "slow motion" run.
Title: How Slow Can You Go? (on steam)
Post by: Nick on August 28, 2019, 12:50:16 am
Running with governor un-belted at around 50 volts

I counted 11 rotations in the last 25 seconds, so if I have done my math right, that would be 26.4 RPM's. I think a non-reversing 25 may be able to beat this one...

https://youtu.be/8BhjoKCdmVY
qwertyuiop