Augmenting duct fitting loss coefficients

[IanVG]

thread403-491745 I wanted to respond to this post and also start a conversation on how designers using Revit are working on improving the duct loss fitting coefficients for use in Revit. Seems like a good opportunity for some collaboration. I did not know until the thread I am mentioning, that you are able to modify what the default equation that Revit uses for the fittings.

Edit: The location for the ASHRAE tables for me was found at C:\Program Files (x86)\Common Files\Autodesk Shared\Revit Shared\Ashrae