Horsepower vs tractive effort
WebTherefore, Tractive Effort was more important than HorsePower for steam locomotives. Tractive Effort is a quantity determined almost entirely from the locomotive's geometry. It is at a maximum when the locomotive is motionless and is therefore sometimes called Starting Tractive Effort. As the locomotive gains speed, Tractive Effort decreases. WebJun 22, 2024 · Tractive Effort. “Tractive effort” (TE) is the force applied by a locomotive for moving itself and a train. Tractive effort or tractive force is measured in kilo-Newtons (kN) or pounds force (lbf) where 1 kN = 228.4 lbf. As with “power”, there are different methods of measuring tractive effort:
Horsepower vs tractive effort
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WebNumerous ES44AC units received by UP and CSX are often classified as an "ES45AC", and are commonly rated at 4,500hp: the maximum gross horsepower output. Ironically, BNSF's vast GEVO "armada" (as dubbed by railfans) has since replaced the C44-9W or Dash 9 as being the main locomotive used by the railroad. WebRe: Tractive Effort v Horsepower By Al Krug. Author: tomstp. This reminds me of a SP engineer's "discussion" with a dispatcher who had told him to trade his 4 SD40's to the on coming train with 4 GP-40's. The engineer protested that it would make it necessary for him to back up several miles to get a run to go over Piasano Pass.
WebJun 3, 2004 · Horsepower and tractive effort are indeed related. The confusion occurs at low speeds, where tractive effort is limited by adhesion limits. Getting around adhesion limits is the basis for using slugs in low-speed applications, such as hump pushers and mine runs. The daily commute is part of everyday life but I get two rides a day out of it. Paul WebTherefore, Tractive Effort was more important than HorsePower for steam locomotives. Tractive Effort is a quantity determined almost entirely from the locomotive's geometry. It …
WebThe tractive effort (in pounds) available from a locomotive can be roughly calculated as: Tractive Effort (lbs.) = Horsepower X (308) Speed (mph) Where 308 is 82% of 375 lb … WebMar 1, 2024 · As an average, the roads I worked on, used a ratio of one HP per ton, as long as the grade was at, or less than 1% average. That, as a quick average, would mean your F-7 would be rated for 12-15 cars (loaded), on a railroad with an average grade of 1%. The ruling grade, for the same amount of tonnage/HP would be APPROX., 10% of the average.
WebAug 30, 2024 · A small portion of tractive effort is used to move the locomotive itself and the remaining is used at the drawbar to pull the train. To illustrate how these factors can affect the pulling power on locomotives with similar horsepower, a General Electric C40-9W with D.C. traction produces 4,000 horsepower and its tractive effort is roughly ...
http://evilgeniustech.com/idiotsGuideToRailroadPhysics/HorsepowerAndTractiveEffort/ clarify our understandingWebWhy does a passenger locomotive have a higher top speed compared to freight locomotive of a similar horsepower? This is because both locomotives differ in tr... download all as zipWebSo let’s look at our tractive effort graph: at 80km/h, we can use 5th gear and apply roughly 1450lb-ft of torque to the axle, or we can use 4th gear and apply 1700lb-ft of torque! That’s 17% more torque to the ground, and guess what, our HP at 80km/h is 17% higher in 4th … clarify pharma plcWebAug 30, 2024 · To illustrate how these factors can affect the pulling power on locomotives with similar horsepower, a General Electric C40-9W with D.C. traction produces 4,000 … clarify overviewdownload all attachment in outlookWebFeb 21, 2005 · Tractive effort is a force. Actually, the minimum speeds are different, 10.7 mph for all types of GP38s and 11.3 mph for all types of the GP40s. I do not know for sure … clarify part 36 offerWebAccording to Wikipedia HP can be a measure of ability to turn steam to water, or in the case of locomotives it can be a measure of how fast you can move a load. Drawbar … download all asus drivers