Maximum Speed (2024)

World Speed Records

How fast is the fastest slot car in a straight line? This is probably the simplest and most obvious question about slot car world records: it is certainly a question I've been asked many times by the public.

Full size cars have been specially built to be the fastest in a straight line since the end of the 19th century, quite early in the 20th century these cars became too fast for normal roads, and the later records were set at places like Bonneville salt flats and various deserts. Slot cars have a miniature version of the same problem. There can be no doubt that given a long enough and smooth enough straight track, slot cars could be made to achieve higher top speeds than is possible on the circuits and drag strips where slot cars normally race. The record lap for a Blue King track averages over 80mph / 130 kph, so there can be no doubt the maximum speed is higher than the average. The fastest slot dragsters are said to have terminal speeds around 135-140mph, the highest claim I’ve seen is 158 mph but more details of the exact speed and how it was measured would be needed to give a precise record.

Back in January 1964 “Car Model” magazine published a claim that a slot dragster had achieved 199.9 mph. The February 1964 edition of “Car Model” withdrew the 199 mph and claim to have calculated the maximum speed “in the 70 - 80 mph range”. Even 70 mph is pretty impressive for 1964, but there is some room for scepticism about whatever calculations were done.

Just occasionally somebody sets out a slot racing equivalent of the Bonneville salt flats. This has been done for various categories of hard bodied cars, but their maximums were a little over 50 mph, well below the averages lap speeds achieved by the fastest circuit racing slot cars.

There is a report of 139.784 km / hr = 86.858 mph achieved by Hans Kock at Pforzheim, Germany at Christmas 1992. The track had two 12 meter straights, one upside down (!), with 180 degree loops joining them. The cars used aerodynamics to keep them in the slot on the upside down straight.
On a conventional track, the King track world record was raised to over 80 mph average
(see separate story).

There was a claim to have achieved 158.8 mph (255.6 km/hr) in June 2009 in the USA, but the organizers subsequently discovered problems with their measuring equipment and withdrew the claim. It seems their actual speed was in the region of 60 mph.

Exactly what speed does the fastest slot car do? As far as I can establish nobody really knows. Slot cars will certainly exceed 86mph, some may have maximum speeds as high as 140 mph. I'd certainly be very interested to hear from anybody who has measured these speeds.

In May 2018 a record for Scalextric brand cars of 36.6mph/58.9kph was shown on British Channel 5 TV. By using a "scale speed" calculation they claimed a much higher speed.

NOTE

These are all actual speeds. Sometimes vastly higher records are claimed by using "scale speed". Unfortunately there are several different ways of calculating scale speed, so "scale speed" doesn't mean much unless it is made clear which type of scale speed they are talking about. I've stuck to real speed as this is easily understood and unambiguous.

Updated May 2021

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Maximum Speed (2024)

FAQs

Maximum Speed? ›

Speed Limit Statute

How do you find the maximum speed? ›

The formula to calculate this maximum speed is v_max = ωA. In this formula, ω represents the angular frequency of the motion. The angular frequency is related to the period of the motion (the time it takes for one complete cycle) and is calculated as ω = 2π/T, where T is the period.

What is the maximum speed in us? ›

Highway speed limits can range from an urban low of 25 mph (40 km/h) to a rural high of 85 mph (137 km/h). Speed limits are typically posted in increments of five miles per hour (8 km/h). Some states have lower limits for trucks, some also have night and/or minimum speed limits.

What is the maximum speed you can travel? ›

The laws of physics limit speed to the speed of light, 299,792,458 m/s exactly. The meter is based upon the speed of light which is based on the second which is the amount of time it takes for 9,192,631,770 unperturbed ground-state hyperfine transitions of the cesium-133 atom.

What is maximum and minimum speed? ›

Similar to maximum speed limit signs, in that they are circular and contain a number, they can be differentiated by colour. Instead of the vibrant 'red' that we are more used to seeing (signifying prohibition) minimum speed limit signs sport the a rim of blue.

How do you find the maximum speed with distance? ›

If we take the distance that an object travels and divide that by the time taken to travel that distance, then that fraction equals the object's speed. For a distance–time graph then, the slope of a line on the graph is equal to the speed of a given object. The steeper the slope, the greater the speed.

Is there a 100 mph speed limit in USA? ›

The highway has the fastest posted speed limit in the U.S., 85 miles per hour. Texas drivers love to go fast, and no U.S. speed limit is faster than one Texas highway's. Texas 130 between Texas 45 near Austin and Interstate 10 in Seguin has a posted speed limit of 85 miles per hour.

Is there a 100 mph speed limit in Texas? ›

How fast can you drive in Texas? Texas always does things bigger, and that includes the speed limits. The fastest legal speed limit here in Texas is 85 mph, but you won't find that speed limit posted on just any Texas highway. In fact, Texas State Highway 130 is the only location where you can drive that fast legally.

Can you go 10 over in Florida? ›

Traveling just a few miles over the speed limit — 6 to 9 mph — will cost you $144. If you were going between 10 and 14 mph over the limit, expect to pay a $219 fine. Zoom 15 to 19 mph over the posted speed limit, and the ticket will set you back $269. Driving 20 to 29 mph over the limit brings a $294 penalty.

Can a human go Mach 10? ›

Practically achieving Mach 10 speed for humans is impossible due to the sheer amount of G-force involved. G-force is a term used in aviation to describe the stress experienced by pilots.

What is the fastest a human has ever gone? ›

The fastest speed at which humans have travelled is 39,937.7 km/h (24,816.1 mph). The command module of Apollo 10, carrying Col.

What state has no speed limit? ›

Only one state, Montana, is left unspoiled with no daytime speed limit. At night, speeds are restricted to 65 mph on interstate highways and 55 mph on two-lanes.

What are the 4 types of speed limits? ›

California's Four Major Speed Laws
  • Basic Speed Law. California's basic speed law states that drivers can't exceed the speed limit based on current road and weather conditions. ...
  • Minimum Speed Law. ...
  • Maximum Speed Law. ...
  • Prima Facie Speed Law. ...
  • California's Point System. ...
  • How Much Do Speeding Tickets Cost?
Mar 31, 2023

What happens when speed is maximum? ›

The velocity of a body is maximum means that you can not increase it further. Means change in velocity is zero. Means change in velocity is zero. Hence acceleration is zero.

Why is the speed limit 30 mph? ›

The 30 mph limit was introduced by the Road Traffic Act 1934 as a way of slowing traffic in built-up areas (defined as having a system of street lights no more than 200 yards apart) for road safety.

What US state has no speed limit? ›

Trilobites blaze across the continental drift for eons before oceans turn to highways that man promptly ruins with speed limits. Only one state, Montana, is left unspoiled with no daytime speed limit. At night, speeds are restricted to 65 mph on interstate highways and 55 mph on two-lanes.

What part of the US has no speed limit? ›

There are no states that do not have a speed limit. Montana did not have a posted daytime speed limit prior to 1974 when Nixon signed the 55mph speed limit law. The law stated that the daytime speed limit was what was reasonable and prudent.

What is the fastest road in the US? ›

America's fastest road: northbound Arizona Route 79 between Saguaro National Park and Phoenix. On this stretch–two lanes wide and almost completely straight for its entire 39-mile length–the fastest drivers routinely reach speeds of 87 to 90 miles per hour.

What states have 75 mph speed limit? ›

Maximum posted speed limits
StateRural interstates (mph)Urban interstates (mph)
Arizona7565
Arkansas75 trucks: 7065
California70; trucks: 5565 trucks: 55
Colorado7565
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