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"The new engines are an improvement over the P-s3s—fuel efficiency is 15 percent better and the heat exchangers are less prone to flux."
―Piers Roddance[src]

The SFS P-s4 ion engine was a twin ion engine developed by Sienar Fleet Systems. It was an improvement over the old P-s3 ion engines, its fuel efficiency was 15 percent better and the heat exchangers were less prone to flux, qualifying as the primary engine system of the TIE/ln space superiority starfighter.[1]


As P-s4 ion engines make an appearance every time a TIE/LN starfighter does, this list contains only specific mentions of P-s4 ion engines.

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