Smoke Interference Math

[Billtastic77]

Why are the numbers for smoke interference for towers and funnels not equal?

If my tower has -31 smoke interference and I add a funnel with +15 smoke interference I end up with +25 smoke interference on my ship design.  That makes no sense. If the tower has -31 smoke interference then adding a funnel with +15 smoke should result in -16 Smoke interference on the ship statistics. Please make the numbers equivalent.

[midge]

Have you checked the % modifiers from your Fuel, boilers and engine type? Those get apllied to the + smoke interference from funnels but not the - from towers.

Depending on your settings, you could be getting up to a +205% modifier to your funnels smoke interference, meaning youre 15 interference funnel is actually producing over 45 interference.