[1.3.1] Kerbal Atomics: fancy nuclear engines! (November 28)

I'm trying to use the small nuclear aerospike to launch and circularize, could be a SSTO or assisted with tanks and SRBs. Is possible to keep it cool all the way up? I'm using radiators from "heat control", but seems almost impossible to cool it down with radiators that work in atmosphere. I'm not complaining, it would be very overpowered without the need for cooling.[1.3.1] Kerbal Atomics: fancy nuclear engines! (November 28)

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