The 3D and 2D layout drawings have been seen. Since we don''t know reasoning of decisions it is wise to discuss this layout via a Skype meeting instead of sending comments.
In march I had some information exchange with Nitin about the implementation of the air exhaust ducting into the 3D model. This air ducting has to be installed before the crane structure is installed. I have uploaded the latest concept drawing, please implement this ducting into the model to check if there is any clashes with the crane structure. 