Eastern Railroad Discussion > What the difference? Date: 02/17/01 07:54 What the difference? Author: nsrailfan What's the physical difference between the C40-8W and C40-9W locomotives? [ Reply To This Message ] [ Quote ] Date: 02/17/01 08:10 RE: What the difference? Author: banner Dash 9's are 4400 HP, while the 8's range from 3200-4000 HP. [ Reply To This Message ] [ Quote ] Date: 02/17/01 08:23 RE: What the difference? Author: cr3317 The one that stands out to me is a pair or triangular panels behind the cab. These are located along the roofline of the locomotive, and where the dash eights have square panels or grills, the nine's have a square panel that is riged with some kind of triangular pattern to it. Look for it and you will see it! Sorry I couldn't explain this better. Scott H [ Reply To This Message ] [ Quote ] Date: 02/17/01 08:54 RE: What the difference? Author: Throttle_JCKY There are a few electrical difference, one is with the computer too. as mentioned, Horsepower is different, some other small things also. [ Reply To This Message ] [ Quote ] Date: 02/17/01 09:07 RE: What the difference? Author: CR4114 The easiest way to tell the two apart is by the trucks, the -9's have the newer HiAD, "rollerblade" trucks, while the -8's have a older style, which I don't know the name of, but the look sort of similar to EMD's HTC truck, below I have a picture of a NS C40-8W, and in the next post I will have a NS C40-9W picture from the same side so you can compare the two. Kyle  [ Reply To This Message ] [ Quote ] Date: 02/17/01 09:10 RE: What the difference? Author: CR4114 And here is the picture of the NS C40-9W.  [ Reply To This Message ] [ Quote ] Date: 02/17/01 10:15 well, mostly! Author: DRLOCO Well the "spaceboot" or "rollerblade" trucks on dash nines are a good spotting feature, but not always accurate. For example, CSX dash 9's have the HTC (older style) truck on them...the best way that I have determined to uncover locomotive type, other than louver counting is the sticker on the cab that says "CW-44-9" instead of "CW40-8" Sure, it's a lazy man's way to railfan, but then I'm lazy--so it works for me!~~DRLOCO [ Reply To This Message ] [ Quote ] Date: 02/17/01 11:28 RE: well, mostly! Author: CSXDash9 I believe the sure fire way to distinguish between the -8 and the -9 is the thickness of the radiator wings. If you happen to come across a -8 and -9 coupled rear to rear, the -9's wings are much thicker than the -8. GE seems to think that each new engine has to have thicker wings, because the AC60CW's have those absurdly thick ones. Kinda difficult to tell at first with a stand alone -8 or -9, but it's just a matter of getting used to the proportions. It also helps to know the railroads rosters so that you can tell by the number. That's probably the best way to find out. CSXDash9 [ Reply To This Message ] [ Quote ] Date: 02/17/01 11:33 RE: What the difference? Author: thoroughbred Other than some soft ware updates, the basic difference between the two GE models is the DASH 9's have Electronic Fuel Injection to improve fuel economy. Bill Morrison MorrisonRailfan@aol.com [ Reply To This Message ] [ Quote ] Date: 02/17/01 14:57 RE: What the difference? Author: run8 > Other than some soft ware updates, the basic difference between > the two GE models is the DASH 9's have Electronic Fuel > Injection to improve fuel economy. That's not a guaranteed spotting feature either. Some of the last Dash 8s, like the LMS locomotives, have electronic fuel injection. Overall, it seems that a number of things came on line at about the same time - higher HP, trucks, split cooling, electronic fuel injection, etc. and that GE chose to change the model name as a marketing gimmick. There doesn't seem to be a definitive break where one feature will clearly delineate the model of locomotive. [ Reply To This Message ] [ Quote ] Date: 02/17/01 19:06 CSX "-9's", & radiator wing thickne Author: CR4114 From the pictures I have of CSX "-9's", they are exterally identical to a normal C40-8W's, so why does CSX call them -9's? I am guessing that internally they have -9 inerds, otherwise they would be called C44-8W's. And regarding the difference in thickness of the radiator wings on -8's & -9's, there is none, look at my first picture, that is a -8 back to back with a -9, and there is no differance in the thickness of the wings. Kyle [ Reply To This Message ] [ Quote ] Date: 02/17/01 20:56 RE: CSX "-9's", & radiator wing thi Author: Chessie_8563 Okay hes the funny thing about the CSX -9 CSX has 3 C44-8W that look EXACTLY like a C40-8W but CSX calls them C44-9W because they have basically the same inards. (GE calls them C44-8W still) All of CSX C40-8W are just that C40-8W none have been rebuilt to -9 standards. Also the CSX (20?) C44-9W are numbered just above what are truthfully the C44-8W. Looking at two models I have and some pictures here are the differnces. Dash -8 Older HTC like trucks large engine air intake has 5 steps well steps Radiators from top view 6 screens (3 on each side) Radiators from side views grill is all one piece air intakes under radiator (fireman side) 6 intakes on side Air intakes from left side (engineer) 8 air intakes on side Dash -9 HI-AD trucks (some CSX/CP/KCS AC4400CW have ge radials) small engine air intake (note AC4400CW engine air intake is even smaller) has 6 steps well steps (note some railways like ATSF have C44-9W with -8 step wells) Radiators from top view 4 screens (2 on each side) (another note is that the -9 screens seem to be 2 pieces) Radiators from side views grill is 2 pieces (front being shorter air intakes under radiator (fireman side) 8 on side with 4 in a cube patern Air intakes under radiator (engineer) 9 on side Other differnces inclued the radiators being thicker on a -9, the -9 is longer than a -8 (not by much) and some of the electrical cabnet doors being differnt. Also (sometimes depending on purcheseing railroad) the cab hand grips are differnt on the nose. well thats all I have noticed so far there could be many more differnces [ Reply To This Message ] [ Quote ] Date: 02/18/01 10:47 The answer is behind the cab! Author: eashock The way I tell the two apart is that area just behind the cab. In the two pictures, notice that the Dash 8 has nothing but grills and such. The Dash 9's got those two square areas, which if you look at them, they have a pattern that forms two X's, kinda like looking at a vent duct in a building. You will also notice that this "hump" is longer on the 9 than on the 8. A great way to tell is go to a hobby store and ask to see a couple of models side by side. That's how I learned. ;) -Eric Shock [ Reply To This Message ] [ Quote ] Date: 02/18/01 12:35 Wing Thickness Issue Author: CSXDash9 Ok, check out this picture. It's a pretty good comparison of an NS -9 and -8...maybe I'm wrong in assuming that a regular cab -8 is the same as a wide cab -8 with a different nose, but there is an obvious difference in wing thickness. They don't even line up right! But that might just be a product of the track. Who knows? CSXDash9  [ Reply To This Message ] [ Quote ] Date: 02/18/01 19:33 RE: Wing Thickness Issue Author: Chessie_8563 Thats first unit is a C40-9W and the other is a C40-8 [ Reply To This Message ] [ Quote ] Date: 02/19/01 12:49 RE: Wing Thickness Issue Author: atsf5704 CSX has 50 C44-9W's (9000-9049) that look like Dash 8's, same trucks, same radiators, same hood. However they are Dash 9-44CW's according to their builder's plates. This isn't the first time, GE has done that. The first U28B's were in U25B carbodies. The same applies to the U28C (U25C car body), U30B (U28B car body), and U30C (U28C car body). 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