hexagon789
Veteran Member
Apparently it takes around 2.5 mins and 2.5 miles to whisk a 2+4 HST set to 100mph. And then i guess a mile to a mile and a half to brake back to rest. So where the maximum speed allows it..you can reach 100mph on a station to station section of around 4 to 5 miles. Probably though running at 80 or 90mph on short 4 to 5 mile sections would use a fair bit less fuel without losing huge amounts of time.
I know GWR's HSTs have DAS (Driver Advisory System), which tells the driver how fast they need to travel at and when to shut off power and to maintain schedules. If the HSTGTis still have this operational, I imagine on shorter runs they won't reach 100mph even if the distance was otherwise sufficient.