Rapido 203504 HO UAC TurboTrain Set, ESU LokSound, Late AmtrakRapido 203504 HO UAC TurboTrain Set, ESU LokSound, Late Amtrak Rapido HO UAC TurboTrain Set, ESU LokSound, Late Amtrak Rapido Item #: 203504 On December 20, 1967 the United Aircraft TurboTrain rocketed to an amazing 170. 8 MPH on the Pennsylvania Railroad in New Jersey. To this date, this is still the fastest speed ever achieved by a production train in the United States or Canada. On April 22, 1976 a Canadian National TurboTrain reached a speed of