Helst_navngivet Posted May 31 Report Posted May 31 On my server, we have a rather large mill, with a helve hammer connected to it. We recently changed from normal windmill sails (50 Kn) to large windmill sails (75 Kn). The helve hammer still does not function when geared up 5x. How much torque is needed to operate it at a practical speed?
Solution MKMoose Posted May 31 Solution Report Posted May 31 9 minutes ago, Helst_navngivet said: We recently changed from normal windmill sails (50 Kn) to large windmill sails (75 Kn). The helve hammer still does not function when geared up 5x. A single set of regular sails should provide 20 kN (up to 5 sets in a full windmill), whereas a single set of large sails should provide 25 kN (up to 10 sets in a full large windmill). 11 minutes ago, Helst_navngivet said: How much torque is needed to operate it at a practical speed? It can vary somewhat due to a few factors (mainly how high the windmill is built and how much resistance is added on by other components), but as a general rule, a single full windmill (100 kN) is roughly the minimum to operate a helve hammer at tolerable speed without upgearing, though something more like 200-300 kN per helve tends to be recommended in order to allow faster operation at lower wind speed. When you upgear it once, you increase the speed five times, so the required power is increased proportionally - at minimum about 500 kN (five full windmills) per upgeared helve, but ideally at least twice that. Note: it used to be that upgearing the helve wasn't generally recommended due to its resistance increasing with speed. This has been removed in 1.22 as it was causing some problems, so upgearing is more viable now. 1
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