Dave says initial assessements demonstrate significant performance benefits like fuel savings, increased range and increased time on station.
Lockheed Martin studied 100s of winglet options, and based the P-3 study on a similar study of C-130 winglets. C-130 wind tunnel tests verified cruise-drag reduction estimates.
Initial P-3 estimates expect a 2-3% increase in range or a 4-6% increase in time on station.
We're not developing the winglet for a specific customer, and haven't built or installed any yet. Next steps will be to finalize the winglet design and perform certification efforts.