Logo design for DA4RID

Project is to design a logo for a new product called DA4RID (Digital Advertising for Railway Information Displays) that enables advertising on information displays at public train stations. Please note that this product is one in a larger family of products that already have a logo. We therefore want this new logo to fit within the existing look of that family. I have attached a file that contains the existing logo for another product in this family (DA4FID: Digital Advertising for Flight Information Displays). The design for this project must be based on that concept. In view of the fact that a base design already exists, we expect this to be a simple project. What we are basically looking for compared to the attached logo is a different colour to represent this spin-off product and to remove the airplane and replace it with something that is related to train transportation.