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Advice on a 4" and help

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Post  LiveSteam on Thu 12 Nov 2020, 7:50 pm

Simon C wrote:
dacgarrett87 wrote:Really quick, how hot does a 4 inch run?

If you go for a DCC the temperature of the steam at 180 psi would be 190C/375F.
If you go for an aggie the boiler pressure comes down to 120 psi and the temp of the steam would be 175C/345F.
Simon C

..........and perfect for jacket potatoes in the smoke box Cool

LiveSteam

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Post  dacgarrett87 on Tue 17 Nov 2020, 8:57 pm

How fast should I expect a Single Cylinder to go? I would also like to know this for a DCC Road Loco.

dacgarrett87

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Post  lynnr on Tue 17 Nov 2020, 9:01 pm

Hi

No faster than 8mph as DVLA will get upset otherwise.
lynnr
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Post  dacgarrett87 on Tue 17 Nov 2020, 9:55 pm

lynnr wrote:Hi

No faster than 8mph as DVLA will get upset otherwise.

Ok, but what if (hypothetically) I could open the regulator to full steam, how fast could it go then, without any speed limits?

dacgarrett87

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Post  lynnr on Tue 17 Nov 2020, 9:56 pm

Hi

On here or any public page. 8mph. With the regulator fully open. As designed.
lynnr
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Post  dacgarrett87 on Wed 18 Nov 2020, 12:37 am

Right thanks for your help, Lynn.

Edit: I know this may unrelated to the Burrell, but is the 8mph limit also on the Foden models? Also, I wasn't really expecting any of the Burrell models to reach over 10mph if that's the impression I gave off.

dacgarrett87

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Post  Will@STW on Wed 18 Nov 2020, 9:15 am

Hi guys

The DVLA will get very up tight if the engines go faster than 15mph, any higher than that and they will ask for the engines to undergo an MOT, it would be nothing short of a miracle for a traction engine to pass an MOT. On the certificate of speed the maximum speed is listed as 6-8mph, but that a safe operating speed would be slower than that as you have to maintain the fire and the water level. The DCC engines have a maximum speed of 10-15mph (again safe operating speed is recommended as being slower than that). The Fodens come under the same guide lines as a steam engine.

Many thanks

Will@STW

_________________
If only we made a Marshall  Laughing
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Post  LiveSteam on Wed 18 Nov 2020, 8:36 pm

dacgarrett87 wrote:How fast should I expect a Single Cylinder to go?

Generally they will trundle along at about 4mph with ease, 6mph things start to go around in my view pretty quick, in particular the crank and big end and without any counter balance on the single I wouldnt want to go faster without risk of wearing bits of the crank and big end, having said that I've had a STW single go past me like I was standing still Shocked they must have been up close to 10mph.

At the end of the day its not about racing about at break neck speed Wink

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