What a gull-wing naval fighter would trade for carrier strength

Do we know the theoretical speed, range, and load of the proposed gull-wing naval fighter?

Not precisely; it would probably resemble a Spitfire in performance but use a stronger, possibly slower airframe for carrier landings.

Precise speed, range, and load figures for the unrealized aircraft are not available. Its performance was probably broadly comparable to a Spitfire because of the engines being considered. Carrier landings would require a much stronger airframe, while the gull wing would help configure the aircraft for deck operations. That reinforcement could reduce top speed, but it would also improve the aircraft's ability to absorb landing impacts. The result is a design trade-off rather than a confident specification sheet.