Wild Rose ~ Quarry Hunslet
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Re: Wild Rose ~ Quarry Hunslet
What a well mannered machine Dave, I'd be well chuffed if I were you, pun intended.
Sorry I wrestled that closely guarded secret out of you, that is big cylinder bore, larger than it looks. Is there a specific reason for choosing 13/16 bore?
This has been a really inspiring build dave, and thanks for taking the time to explain all the complex bits. Looking forward to more running in footage!
Best,
Tom
Sorry I wrestled that closely guarded secret out of you, that is big cylinder bore, larger than it looks. Is there a specific reason for choosing 13/16 bore?
This has been a really inspiring build dave, and thanks for taking the time to explain all the complex bits. Looking forward to more running in footage!
Best,
Tom
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Re: Wild Rose ~ Quarry Hunslet
Well done Dave, those huge oscillating cylinders moving at a steady pace don't look that bad compared to a Mamod running at a speed of light.
Coal firing video next please.
Coal firing video next please.
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Re: Wild Rose ~ Quarry Hunslet
superb loco !
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Thanks very much lads. I am well chuffed
Big cylinders are the secret to slow running TomTom the blacksmith wrote: ↑Wed Nov 27, 2019 9:28 pm Sorry I wrestled that closely guarded secret out of you, that is big cylinder bore, larger than it looks. Is there a specific reason for choosing 13/16 bore?
I agree that they don't look that bad either Tomtom_tom_go wrote: ↑Wed Nov 27, 2019 9:36 pm Well done Dave, those huge oscillating cylinders moving at a steady pace don't look that bad compared to a Mamod running at a speed of light.
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
I am very impressed with this engine. Your usual excellent fit-and-finish and smooth running are extra-evident in this machine. At first I was astonished that you chose to use oscillating cylinders, but I have to admit I love the sinuous look this engine has as it moves along. It reminds me of an oscillating ship's engine I saw running on air at the Transportation museum in Lucerne.
I am curious about why you chose to have the exhaust right at the top of the chimney rather than employing a blast-pipe to draw the fire.
I am curious about why you chose to have the exhaust right at the top of the chimney rather than employing a blast-pipe to draw the fire.
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Re: Wild Rose ~ Quarry Hunslet
Thank you Keith. I wanted to build another large ossy loco. I put the exhaust so high as I was concerned that any blast would pull the gas flames out. I am at the moment trying a different and lower outlet
Best wishes,
Dave
Dave
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Re: Wild Rose ~ Quarry Hunslet
The safety valve has been fitted with a stronger spring to raise the pressure to the intended 40 PSI.
The exhaust outlet has been changed to a short piece of 1/4" tube exiting at the very bottom of the funnel
A heavy hand on the blower - opening it too much pulls the fire out, but the exhaust does not. The blower makes the steam, the gas is on full all the time. It's a prolific steamer and can match the big cylinders and the pumping. The saddle tank though insulated from the boiler barrel gets nice and warm - feedwater heating is good
The left side boiler clack valve is dodgy, so when I open the bypass I can get quite a surprise with shooting hot water, so I leave it pumping. I had thought one pump would maintain the boiler level, but actually, it pumps more. So here we are full boiler boiling some of the water off.
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
Great loco Dave and she is a stunner.
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Thank you Rod!
Had a great run yesterday after making a few improvements
The burner was susceptible to having the fire sucked-out by the blower making for lots of relighting so I increased the area of the burner holes by 25% (1.6 to 1.8mm dia). But, that made for a surprising need for an increase in jet size. It had been using a 0.15 mm jet, but my largest is 0.23 mm and that wasn't big enough, so I made my own at 0.3mm and it's good, I only had to light the burner once for a 50-minute burn
On the previous run when starting on the grade a large steam leak was found at the port faces, so I stiffened-up the trunnion springs using spacers, and this appears to have done the trick.
The exhaust has been enhanced with a shorty open exhaust tip
Had a great run yesterday after making a few improvements
The burner was susceptible to having the fire sucked-out by the blower making for lots of relighting so I increased the area of the burner holes by 25% (1.6 to 1.8mm dia). But, that made for a surprising need for an increase in jet size. It had been using a 0.15 mm jet, but my largest is 0.23 mm and that wasn't big enough, so I made my own at 0.3mm and it's good, I only had to light the burner once for a 50-minute burn
On the previous run when starting on the grade a large steam leak was found at the port faces, so I stiffened-up the trunnion springs using spacers, and this appears to have done the trick.
The exhaust has been enhanced with a shorty open exhaust tip
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
You wouldn't hear any complaints from me if you wanted to post a few more videos of that locomotive.
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Re: Wild Rose ~ Quarry Hunslet
Here you go Keith Running with exhaust nozzle #3 and with the wagon cover over the gas cylinder to keep the hot sun off it - 40 deg C max
The other day I tried the original "coal firing" exhaust nozzle in the loco. It worked fine but makes a lot of noise rustling the flames, much like the blower does. It made plenty of steam when running without the blower, and didn't pull out the fire. The exhaust note is the quietest of all nozzles and there is no exhaust plume, as is the case with #3 when the blower is on, There was no plume even when the burner was off, coasting back up the line on the residual steam
#3 Exhaust enhancer exits exactly at the base of the chimney and doesn't make steam. #1 is the correct height and size to make steam
The other day I tried the original "coal firing" exhaust nozzle in the loco. It worked fine but makes a lot of noise rustling the flames, much like the blower does. It made plenty of steam when running without the blower, and didn't pull out the fire. The exhaust note is the quietest of all nozzles and there is no exhaust plume, as is the case with #3 when the blower is on, There was no plume even when the burner was off, coasting back up the line on the residual steam
#3 Exhaust enhancer exits exactly at the base of the chimney and doesn't make steam. #1 is the correct height and size to make steam
Best wishes,
Dave
Dave
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Re: Wild Rose ~ Quarry Hunslet
Had a great run this morning. The loco trots up the tight return loop like a welsh pony, this is normally difficult for a non-geared loco
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Best wishes,
Dave
Dave
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Re: Wild Rose ~ Quarry Hunslet
It looks like a ride on loco in that pic.
So when you going to coal fire it!?
So when you going to coal fire it!?
Re: Wild Rose ~ Quarry Hunslet
Great photo Dave, I love it.
The line there looks a brilliant spot for more photos...
The line there looks a brilliant spot for more photos...
ROD
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
Life is so easy when I run my trains.
https://gardenrails.org/forum/viewtopic ... 41&t=11364
https://www.youtube.com/@fairywoodlightrailway
- dewintondave
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Re: Wild Rose ~ Quarry Hunslet
Here's the video clip that goes with the still. I put these on my fb story to give my non-steamie mates a wink
Best wishes,
Dave
Dave
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Re: Wild Rose ~ Quarry Hunslet
Thanks Rod! It's a great spot for viewing returning trains:
Best wishes,
Dave
Dave
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Re: Wild Rose ~ Quarry Hunslet
The display case was delivered this morning. After a 4 year build a display case is a must! I've used this company many times over many years, this is the 7th one I've had. They do a really good job. I always go for the same style
http://www.displaycase.co.nz/
Test fitting. Need a longer piece of track
The intended home
Happy customer
http://www.displaycase.co.nz/
Test fitting. Need a longer piece of track
The intended home
Happy customer
Best wishes,
Dave
Dave
Re: Wild Rose ~ Quarry Hunslet
That is a great display case Dave, no frame to get in the way of the view. Very clean and crisp looking.
Grant.
Grant.
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