This week's work has focussed on the replacement of the cab windows.  It is obvious from detailed study of photographs that the cab windows on a Baby Deltic are a slightly different size to a Class 37, they are the same width but shallower.  There are no drawings for the windows, vague references are made on the cab and nose drawings to a template but nothing appears to exist.  With the starting point taken as a very good square-on photo we have drawn the aperture and printed it to the same scale as an existing Class 37 template, gradually making adjustments and reprinting several times until it looked right.  From there a full-scale template was laser cut and held against the loco with changes being made again until the appearance matched the photo.