The contract was awarded to L&T for package C4 construction.Any progress on bullet train?
Land acquisition is still going on in Maharashtra.
The contract was awarded to L&T for package C4 construction.Any progress on bullet train?
Disappointed with Poor aerodynamic of engine.wag 12 enters service.
It's meant for freight so aerodynamics won't matter much.Disappointed with Poor aerodynamic of engine.
The main hurdle in running the trains fast is tracks rather than coaches and engines. Any new track developed should be capable of 250 KMPH.2022 onwards MCF Raibareli will start manufacturing aluminium coaches capable of attaining speed upto 250kmph. South Korea will transfer the technology. Train 18 coaches are modified LHB coaches. Maybe we can see Train-20 after 2022 with these new coaches.
The main hurdle in running the trains fast is tracks rather than coaches and engines. Any new track developed should be capable of 250 KMPH.
That is true but the main issue is not properly laid down rails. Because of scarcity of land, we often see sharp curves which neciciates slowing down of train. Other hurdle is co-axial wheels rather than independent wheels (This is taken care in vande Bharat express). We require to smoothen the tracks and ensure that new tracks laid down are atleast 250 KM + Capable. The another issue is light weight coaches. We have already started manufacturing low weight coaches made of aluminum so this is been taken care of. By 2025, we should run our trains at 250 KMPH with atleast current capacity equivalent coaches.
True to some extent but yet it is designed to run over 100 KMPH. Shaping aerodynamically would have saved the electricity and improve the speed a little bit.It's meant for freight so aerodynamics won't matter much.
Aerodynamics will have very little impact in this case, first of all it is two 6000 hp engines set not a single engine. Aerodynamics come into the picture when it is a trainset like Train 18 and our metro trains, where is no gap between compartments hence no drag, here it is primarily a goods train so the gap between carriages are gonna be there.True to some extent but yet it is designed to run over 100 KMPH. Shaping aerodynamically would have saved the electricity and improve the speed a little bit.
I doubt what you say. IIT had recommended shaping engines in particular manner to save electricity and improve speed a long back when there was no train set like Train 18.Aerodynamics will have very little impact in this case, first of all it is two 6000 hp engines set not a single engine. Aerodynamics come into the picture when it is a trainset like Train 18 and our metro trains, where is no gap between compartments hence no drag, here it is primarily a goods train so the gap between carriages are gonna be there.
Its not only the wheels which prevents us from attaining speed of the 160kmph or greater then that. Its a combination of factors.That is true but the main issue is not properly laid down rails. Because of scarcity of land, we often see sharp curves which neciciates slowing down of train. Other hurdle is co-axial wheels rather than independent wheels (This is taken care in vande Bharat express). We require to smoothen the tracks and ensure that new tracks laid down are atleast 250 KM + Capable. The another issue is light weight coaches. We have already started manufacturing low weight coaches made of aluminum so this is been taken care of. By 2025, we should run our trains at 250 KMPH with atleast current capacity equivalent coaches.
Its not only the wheels which prevents us from attaining speed of the 160kmph or greater then that. Its a combination of factors.
One among them is the rails. With grade 880 rails, even the freight trains are certified to run at 100kmph speed now on DFC. For passenger trains, 130kmph speed is no longer considered as high speed by IR. They are gradually upping it to 160kmph on average with few operational changes on test basis.
But the bogie factor would be binding us down in increasing the speed any further for long time to come. Other then few trains, we cant expect to see drastic change in speed of trains overall.
SAIL has developed new rails which can which can handle speed above 200kmph. For years we were making poor grade rails which could handle speed upto 160kmph max.The main hurdle in running the trains fast is tracks rather than coaches and engines. Any new track developed should be capable of 250 KMPH.
SAIL has developed new rails which can which can handle speed above 200kmph. For years we were making poor grade rails which could handle speed upto 160kmph max.
The speed is a function of aerodynamics, power and load it carries. If the power is high, aerodynamic impact (Not drag itself) shall be low. So what you say is true. Impact of poor aerodynamics shall be low because of low speed and high power but it will always impact the speed and efficiency. Its impact may vary.Aerodynamics will have very little impact in this case, first of all it is two 6000 hp engines set not a single engine. Aerodynamics come into the picture when it is a trainset like Train 18 and our metro trains, where is no gap between compartments hence no drag, here it is primarily a goods train so the gap between carriages are gonna be there.