i've been working with the a400m example geometry. i wanted to try a dovetail turbofan retention with a traditional fixed pitch propeller. i also wanted to look at hollow composite blades. i made a lot of updates to the file i shared previously. the main thing to be aware of for what you guys are working on is that the surface i get from rhino is worthless. you can't do anything with it. i ended up having to go back to the way i was doing the blades before. which is just a two rail sweep using the base profile. it's not accurate to what i want but it's the only surface that you can actually use for anything later on. if the surface is valid you should be able to do things like create solids, calculate volume, export it to mesh, etc... you can't do any of that with what rhino is creating using the projected airfoils and 2 rail sweep to a point. i found you can't go to a point at the tip either. that will corrupt the geometry. so i trim the geometry at the next to last point.

the geometry for you to compare to is still on the comparison geometry layer

there are a bunch of fea files you probably don't need. but i just have them there because it's how it's stored on my computer. they are for use with mecway.

one interesting note and something i know from my past experience. an aluminum blade is stressed to the point that it supports the weight of several african bush elephants, over 35,000 lbf in this case.

let me know if you have any questions