Edit post

Edit your reply below.

Post Body
Enter your post below.
The EMD (electro motive division) had two lots of locos in the really early days. These were teh F units and the E units. Your F3A is a freight unit (F, freight, gettit?). The E units were passenger units. You can tell the difference because the E units are significantly (1 and 1/2 times) longer and they have 3 axles on each truck rather than 2 on the F units. The B means it is a booster unit. This means it is the same as an A unit but it does not have a cab so it can only go when it is connected to an A unit. The EMD units had the following evolution: FT F2 (little used i think) F3 F5 F7 F9 so an F7 is newer than an F3. The numbers are there to distinguish between different ages of locos. Frequently the newer locos are more powerful or have inovations like dynamic brakes (using the motors on the wheels as brakes, saving on brake wear) or turbo charging. hope that answers some of your questions. neil
Tags (Optional)
Tags are keywords that get attached to your post. They are used to categorize your submission and make it easier to search for. To add tags to your post type a tag into the box below and click the "Add Tag" button.
Add Tag

Update Reply

Login, or register today to interact in our online community, comment on articles, receive our newsletter, manage your account online and more!

Model Railroader Newsletter See all

Sign up for our FREE e-newsletter and get model railroad news in your inbox!