Table of bicycle tire sizes. The table allows you to convert between ETRTO, English-, French-and German targets, and rim circumference etc. ETRTO Same Current: At the same current as the Q100 spun the 28x12 to WOT, the StinGR with the 28x13 C2E develops a 14.89% higher pitch speed while developing 27.21% more power at the shaft. The initial two-digit number is the tyre section and roughly indicates the tyre width. Its actual width is normally less, but varies according to how the tyre is designed and the width of rim to which it is fitted. But the height of the tyre usually corresponds quite closely to tyre section, so overall diameter approximately equals the bead diameter plus twice the section. But if we only have a certain amount of strength and energy, and we cannot create new energy to help us, then how do these tools enhance our strength to move the object we never could without them? Nowadays almost all rims have hooked flanges (required to retain folding tyres) that will hang onto tyres up to three times their width. This increases the cushioning effect: you get more comfort out of the same tyre at the same pressure when you fit it to a narrow rim – yet it still rolls just as easily.

The first law of thermodynamics is about the conservation of energy. There is a finite amount of Energy in the universe and it cannot be created or destroyed. But Energy can be transferred, and as humans, we have always been looking for ways to transfer energy as efficiently as possible. Tools we design and develop also help us enhance our own strength to do things, like move big or heavy objects we would otherwise not be able to without these tools. Weight Comparison 1: The StinGR unit all-up with prop mounting hardware and connectors is 15.8% lighter than the Q100 all-up. If you are unsure of your bicycle tire size, you can look into a bicycle tire table where you can easily and simply find just the tires that fit your bike. Most lists the tire size both English, French and German targets and rim circumference in millimeters. This means that you can easily find the right tire size, although it is a Danish number. The gear reduction of this unit increases the efficiency between Watts-in and Watt-out. This means that there is a smaller margin between the power needed to run the entire unit and the propulsive force the unit develops at the shaft. This translates to 15% more flight time with the same power and same battery capacity, or more power at the same flight time with the same capacity.

Tyre size table

That’s how the diameter and circumference (circ – equals distance rolled in one turn of the wheel) are calculated in the Tyre size table. These figures are useful for setting your cycle-computer and precisely calculating gears. So we reduced the weight of the power system by 18.28% and increased the power-out by 27.21% when both systems are drawing the same current. Weatherproof glazing beads, bars, cills, and profiles designed to extend the life of your timber doors and windows and reduce your production time. Durodeen can be used for many applications and brings you many benefits including: The StinGR 150 can develop the same power at the shaft as any 150cc 2-stroke gas engine, spinning a 30x12 C2E propeller to the threshold of tip speed efficiency at only 214A with a simple 12S battery configuration and the non-geared motor power equivalent of 11.2 kW. This is more than 13 HP at the shaft. Of course, managing the fulcrum location can also change the magnitude of the Output Force as well because it changes the distance ratio of both sides. So there is an opportunity to control the amount of Force we need while using the same Input Force.

The most important concepts of these definitions have to do with the fact that we are not creating energy -- only transferring it in the form of Work. But since Work is the transfer of energy, and we cannot create any new energy, then how are we able to move a big object without increasing energy? This thread's intent is to illustrate and explain the benefits that a StinGR gear reduction unit provides the electric RC aviation community. The three-digit number after the dash is the more important. This is the bead diameter at which the tyre fits onto the rim. A tyre size conversion calculator or tyre diameter calculator are the best ways to get the answers you are looking for. What sets us apart is our tyre suggestion guide. For each tyre size you input our tyre calculator suggests multiple tyre sizes that are with in one inch bigger and smaller of the entered tyre size. Making it as simple as possible to find the tyre that is just right for you.As with the lever in the image below, if there can be no net gain in Work or Energy from the Input to the Output side, then the Force MUST me greater on the Output side. In addition to the various international tire sizes are also available ETRTO list (European Tyre and Rim Organisation). It is precisely this list and these numbers say nothing about the diameter and width of your bicycle wheel, as described previously. The former is ‘fractional’, the latter ‘decimal’, and as a rule decimal and fractional tyre sizes that look the same are not.