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Nick

New Mamod Loco Test

Well, I finally bought one...

Opening the box:







It was a rainy day today, and we couldn't get out in the field, so I've already ran it 5 times.

The following 2 videos were taken on its 4th run:




I was curious how far it would go on one boiler/burner filling.

I filled the boiler with room temperature water, so some of the gas was used up heating the water.

I was running on 0-72 track, so I figured the circumfrence at 226.195 inches or one lap is equal to 18.85 feet.

I started the run at 11:50 and went until 12:08 (a total of 18 minutes) and then the gas tank was empty. The loco traveled exactly 175 laps.

If 1 lap is equal to 18.85 feet, then the 175 laps is equal to 3298.75 feet traveled.

3298.75 / 5280 = .6248 miles, which is pretty close to .6250 or 5/8 of a mile.

So this means my loco traveled 5/8 of a mile in 18 minutes.

I decided if I already have this much info, I may as well figure out the speed.

18 / 60 = .3

mi./hr or .625 / .3 = 2.083 mph is close to the speed the loco was traveling. It's not exact, because I rounded the run time off to 18 minutes.

I looked up what scale 0-gauge is and found several numbers, but chose to go with the average scale of 1:43 and 1:48.

At 1:43 scale, the loco is traveling at 89.57 mph and at 1:48 the loco is traveling at 99.98 mph! (And I had the regulator almost shut, running it slow Laughing )

I know Mamods are not made to scale, so I was going by the size of the track, but someone has helped me out and told me the scale size of a Mamod loco is 1:20.3

At the scale of 1:20.3, the loco was traveling at 42.28 mph in my video

(Let me know if I made any mistakes, it's been awhile since I've done this much math. Embarassed )
Nick

I just checked how much water was left in the boiler after the run and there was 20 ml. If I had boiled the water then added it to the loco, I think I could have gotten nearly a mile on one tank of gas.

But I am averaging 20 minute runs heating the water with the burner, so I think I will stick with running it that way.
Mamod Collector

Thats quite a impresive loco Nick, well done on the math too  Very Happy
Scorpion2nz

I will not agree or disagree with your math .as soon as i saw all the figures the eyes clouded over and the brain turned to mush  Laughing  Laughing
newts

I think you did well with the maths, a very interesting experiment.
Would it be great to break that mile barrier on one filling, a fine achievement for any small loco. Very Happy
Spokesmann

The old Bowmans did better....
Nick

Spokesmann wrote:
The old Bowmans did better....

The Bowmans are fun, but this one is much easier to run.

The gas burners are very convenient and give a lot more control than a meths burner.

And at the current price, they are well worth the money.

I can't work today either because of the weather, so maybe I'll test the 234. Wink
Nick

Test completed! Bowman 234 far out-ran the Mamod. Results soon...
silverfoxsteam

I liked that - must get some cylinders for mine!
Nick

Video soon...

Minor1PJG

Looks great.  I'll have to have a proper close up look in February next year Wink
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