Hello All, I want to figure the exact lrunning length of each of my lanes. Is there a listing or does anyone know the running length for the inside and outside lanes of the 9" 1/8 radius curves - 12" banked curves - 12" 1/8 radius curves - 15" 1/8 radius curves - 18" 1/8 radius curves. Thanks in advance. mj

Hello All, I want to figure the exact lrunning length of each of my lanes. Is there a listing or does anyone know the running length for the inside and outside lanes of the 9" 1/8 radius curves - 12" banked curves - 12" 1/8 radius curves - 15" 1/8 radius curves - 18" 1/8 radius curves. Thanks in advance. mj

Someone knows. Not me, but someone on here will have the answer you seek.

I don't know either, but I know someone who does! ;)

On the HOSlotCarRacing.com website, the Track tab, at the very bottom, there is a listing of the lane lengths for the existing flat tracks.

Here's a link to the right page (http://hoslotcarracing.com/Track.html). You will still need to scroll to the bottom.

I think it would be safe to assume that a 12" and 9" banked turn would have the same travel distance as the flat turn. Well, actually, I know that it will be *slightly* different from the flat distance, because of the vertical travel of the banked turns, but for all intents and purposes, they are the same distance.

-- Bill

I was at www.hoslotcarracing.com recently and in there somewhere was a chart of curve distances for everything from 6' rad to 18" rad AFX track.

Jim Norton
Huntsville, Alabama

Much thanks.

Come on you smarties, do the math! You're looking for arc length on 2 points on the curve that are defined. If you can tell me the distasnce of the slot from the edge I can give you the arc length.

There used to be this great little measuring tool called the "Tapeless Measure". It had a wheel and a counter that measured distance. I have one but it needs repair. I can't find a new one anywhere.

OK here is the cheapskate, no way to mess it up method: Take string and run it in the slot. Then measure the length of string.

If you can tell me the distance of the slot from the edge I can give you the arc length.


Ahhh, SlotV, therein lies the rub. Actually, I had already calculated the lane radii (see below), but to determine the lane length of each turn radii it's more calculation, and with a non-zero chance of making a public boo-boo. More importantly, I remembered where Greg had already published just those values. ;)

Call me lazy, but only after you calculate arc length for all the lane radii for all the turns.

-- Bill

Tomy 6" 3 13/16 5 3/16
Tomy 9" 6 13/16 8 3/16
Tomy 12" 9 13/16 11 3/16
Tomy 15" 12 13/16 14 3/16
Tomy 18" 15 13/16 17 3/16

Come on you smarties, do the math! You're looking for arc length on 2 points on the curve that are defined. If you can tell me the distasnce of the slot from the edge I can give you the arc length.

There used to be this great little measuring tool called the "Tapeless Measure". It had a wheel and a counter that measured distance. I have one but it needs repair. I can't find a new one anywhere.

I knew......I just wanted to see if anyone else knew!! Whos pants are on fire?? mj

I use string :)

Roger Corrie