I know! Hope you didn't take my comment as an attack as that was not my intent, because the overall design is nice, and fits well in current trends. :)

Wasn't clear but what I meant was that you should go beyond the Gantt timeline model, and envision a way modern way for something that was designed in the early 1910s. You have a great base for that and can improve with few tweaks & mergers here and there. :)