[Suicide Junkie]

Yep. Any value less than 42 KT/Engine will have the potential to allow RCEs, by having more than 42 quantum engines on a baseship.

(43'rd Quantum engine hits RCE [43*6=258 > 256])

1500/42 = 35.7
35 engines + 7 = 42 => no crash

Note: 7 * 6 = 42, so the AI will only put 7 Quantums on at the beginning, instead of 8 JPs.