Flatline Tilting High Speed Train is specifically designed to handle tight Stormworks curves without slowing down. Inspired by different real life train features for high speed rail service on non-high speed tracks, it is equipped with active 26° tilting system and weirdly long semi-fixed bogies. Flatline can pass most in-game turns without derailing at 75 m/s (270 km/h, 165 mph).
One of the screenshots shows a turn that you still want to slow down at.
This vehicle is a standard Flatline locomotive used at either end of the train.
Locomotive features
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[*] Top speed: 90 m/s (325 km/h, 200 mph) alone, 80 m/s (290 km/h, 180 mph) in standard trainset of 2 locomotives with 5 passenger coaches in between
[*] Has one driver seat and two optional crew seats
[*] Automated speed control and anti-slip systems
[*] Radio transmitter to switch signals (you'll have less than 2 seconds if approaching full-speed so prepare in advance)
[*] Powered by: 3 self-sustaining steam turbines (infinite generator due to the way steam works in-game)
[*] Can be controlled together with other locomotives in the train as single system
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Instructions
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[*] Get into the locomotive (use button on the door to open it)
[*] Turn the "eng" key on your left
[*] Wait a minute until steam pressure starts rising (dials on your left)
[*] Set desired speed with W/S (don't get above 75 on turns unless you wish to derail)
[*] Slight brake with up/down, emergency brake with space (or one of the many "embrake" buttons anywhere in the train)
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To assemble the train, just spawn coaches one by one with one gangway piece between every coach (see section below for workshop links) and push them towards each other. The coupling should happen automatically, but ensure gangway is connected correctly (its deck should be inside and above both coaches floors).
Important: if coupling when the engine is on, make sure to push "take control" button in the locomotive afterwards (otherwise the logic will break).
Other pieces
[url=https://steamcommunity.com/sharedfiles/filedetails/?id=3696705787]Flatline THST Passenger Coach[/url]: standard unit for 16 person
[url=https://steamcommunity.com/sharedfiles/filedetails/?id=3696706796]Flatline THST Locomotive (Reversed)[/url]: same locomotive, reversed and coupled with gangway to complete the train
[url=https://steamcommunity.com/sharedfiles/filedetails/?id=3696706280]Flatline THST Flat[/url]: for high-speed container deliveries