Using the Thermal TurboJet Engine

[soifua]

I'm trying to put together a small space plane using the Thermal TurboJet engine from KSPI. It works like a charm in Atmo. I've gotten up to Mach 3, which is beautiful. But when the air thins, I'm having trouble. I know should be able to switch propellants, but I can't find the right tank to hold any of the fuel options. I even tried a simple LFO tank and I couldn't get the engine to draw from it. Clearly, I'm missing something. but I'm not sure what it is. It could be fuel crossfeed or part adjacency or simply not using the right tank for the job. If someone can point me to right part or let me know what the problem us, I'd really appreciate it. Additionally, if there's about which fuels are the most efficient to use in a vacuum, that would also be very handy.

thanks in advance, 

Andrew 

Edited April 26, 2018 by soifua
adding mod

[Barar]

Don't use the mod but does the WIKI help?

https://github.com/sswelm/KSP-Interstellar-Extended/wiki/Thermal-Ramjet-Nozzle-and-Thermal-Turbojet

Seen some Youtube videos but they are from 2014, so not sure if they are accurate.

[soifua]

Not specifically with the issue I'm having. There's a great explanation of the different fuels available for use with the engine, but nothing about the right fuel tank or fuel tank placement.

[Barar]

Have you turned on advanced tweakables in Settings under General? You can then go into the game and see the fuel flow on the parts with the right click GUI. You can also set fuel priority.