Why is rail running faster?

[bracketracer]

No no no no, it is faster because the wheel contact on the rail heats the wheel in turn heating up the oil in the wheel bore causing a thermoduplicotic reaction forcing the enlarged mononucleoplatlets in the oil to harden causing the wheel to run faster and create a slight odor.

Murph? Is that you?

Wow! Straight for the kneecaps eh Scott?

I wonder how many newbs are sniffing their wheels tonight, trying to detect the slight odor.......

 

[BlewBYu]

I am a newbie as well as a high school teacher. The result: I have a keen sense of sarcasm! Fortunately for me, no sniffing of wheels!

 

[oxford]

i always thought it was the phase inhibitor effect

 

[Fumbles]

No no no no, it is faster because the wheel contact on the rail heats the wheel in turn heating up the oil in the wheel bore causing a thermoduplicotic reaction forcing the enlarged mononucleoplatlets in the oil to harden causing the wheel to run faster and create a slight odor.

This would explain why my car smokes while going down the track. I used to think it was because it was going fast but now I know it due to the campfire inside my DFW bore.

 

[letmrun]

No no no no, it is faster because the wheel contact on the rail heats the wheel in turn heating up the oil in the wheel bore causing a thermoduplicotic reaction forcing the enlarged mononucleoplatlets in the oil to harden causing the wheel to run faster and create a slight odor.

While I am new here, and responding late, something smells a little off in DD4H's explanation. By just looking at the wheels and without a molecular analysis, the wheels look to be made of polypropylene. Polypropylene has a fairly high specific heat and would therefore act more like an insulator rather than a conductor of heat. This would allow for a slower more controlled release of heat from the wheel bore area as opposed to transferring it from the friction at the rail (wrong direction). DD4H is correct in saying there is a thermoduplicotic rxn. It is specifically an exothermic reaction, not an endothermic one, hence the generation of heat. The reaction is started by the initial generation of heat produced from wheel friction. The reaction is accelerated as the volatile solvents in the oil are released into the space surrounding the wheel bore. The volatile solvents most likely involved in the reaction are ethane (a 2 carbon compound), butane (4 carbons), and hexane (6 carbons). They likely combine in some fashion to form the 8 carbon compound octane. For example 2 butanes combine or 1 ethane and 1 hexane combine. This would result in dinuleoplatlet or trinucleoplatlet formation of the compound, not mononucleoplatlet as stated. Octane as most know is used in race cars to slow the rate of chemical combustion. In this case it probably decreases the rate at which the oil breaks down. Extra canting of the wheels is usually beneficial to allow excess octane to bleed off (the detected odor) thereby keeping internal axle pressures from getting to high. Sorry for the long and technical response.

 

[Crash Enburn]

Wait... So "thermoduplicoctic" is an actual thing?

 

[davet]

Yes, I know rail running is faster… but why?

All logic of physics and friction says it should be slower… aiming your car into the center divider and sliding down the track.

I don't know why it's faster but these guys here have proven it over, probably, hundreds of thousands of runs down the tracks over the years.

I can't help but wonder, though, what the next, big break-through will be in pinewood derby design. Someone, somewhere is working in a dimly lit basement on a homemade track with a stopwatch after the kids have gone to bed with refining a flexible body, vibration dampening concepts, nano lubes, slippery paint, air propulsion of some type, or using a very exact airplane-wing profile to get slight lift to lessen the weight on the wheel/axle combo and the wheel/track combo.

Whatever it is, I'm sure it will show up here after it's been proven in a race.

 

[down4derby]

Cough!