Hi Fatty I figured you had this one done

Hi Rob,

Without diving in too deep I will make a few assumtions ()

There are different numbers of knuckels and chimes (your terms maybe? why not x,y,z?) for each frame. The data supplied is a sample not the real data. Also there will be a "spacing" for each frame along with the multiple base dimensions. This is not a viking boat. You acually want to draw a 3d model of the ship.

Would you want the frame to be draw with a polyline?

I have some code that already does the decimal conversion from the format you posted, FYI.

As Fatty said
I need a time to chew it