Smoggie
Well-Known Member
I posted the first version of this tool in another thread but I've been doing a bit more work on the tool and validating against a few more data points from various helis. It's hopefully not far off now for the common range of heli sizes.
This tool is not intended to do the same job as any existing headspeed calc such as 'MrMel'. The idea of this calculator is that it will give you a good idea of the REQUIRED headspeed that you will need to fly a certain size (and weight) of heli in your desired flight style (scale / sport / 3D etc). So you use this tool to work out what headspeed you want, and then you can use the likes of 'MrMel' to calculate what pinion /motor kV/Throttle curve etc that you will need to achieve that RPM.
V1.2 of the tool download links below:
Excel: Download - Hightail
OpenOffice: Download - Hightail
Screenshot:

Please let me know how it works and if it gives accurate results compared to what headspeed you use on your own helis. The more data points I have the better the tool can be 'tweaked'.
Steve

This tool is not intended to do the same job as any existing headspeed calc such as 'MrMel'. The idea of this calculator is that it will give you a good idea of the REQUIRED headspeed that you will need to fly a certain size (and weight) of heli in your desired flight style (scale / sport / 3D etc). So you use this tool to work out what headspeed you want, and then you can use the likes of 'MrMel' to calculate what pinion /motor kV/Throttle curve etc that you will need to achieve that RPM.
V1.2 of the tool download links below:
Excel: Download - Hightail
OpenOffice: Download - Hightail
Screenshot:

Please let me know how it works and if it gives accurate results compared to what headspeed you use on your own helis. The more data points I have the better the tool can be 'tweaked'.
Steve
