WAM 4 - Father of the Nation for RailFans - Vikas Kumar

Speed on curve depends on the degree of curve. If Jap train negotiates a curve at 270 kmph then it must be a very mild curve like 1 degree or so. Theoretically high train speeds may be possible on sharp curves (which are abundant on I Rlys track) by providing excessive banking of tracks and/or excessive tilting of trains, but practically that ride will not be safe for train passengers.

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