Which calculation is used to determine the travel for a 60-degree offset?

The calculation for determining the travel for a 60-degree offset involves understanding the geometric relationship between the angle of the offset and the length of the pipe that needs to be installed. When adjusting for angular offsets, especially in plumbing, it's necessary to consider the effective length of the pipe that results from the offset.

In the case of a 60-degree offset, the formula that accounts for this angle is derived from trigonometric principles where lengths in a right triangle formed by the offset are affected by the angle. The factor of 1.15 effectively represents the ratio of the hypotenuse to the adjacent side in this specific internal angle scenario. This means that when you multiply the offset distance by 1.15, you are accounting for the additional length that concrete geometry requires for a 60-degree change in direction. This calculation ensures that the correct pipe length is obtained to maintain proper alignment and function.

This specific multiplier directly correlates to the geometric requirements imposed by the offset angle, ensuring that the travel distance reflects the actual physical pathway the pipe must cover. As a result, using 1.15 x offset is crucial for accurate installations.