OZBUSDRIVER:---- The P8 Poseidon has a raked wingtip basically the same as the 777-300ER and the 767-400ER. For some reason they didn't want the winglet like a standard 737NG, maybe something to do with the offensive/defensive equipment carried? Don't know maybe it's more efficient?
http://www.boeing.com/commercial/aer...p_devices.html
Apparently they are more efficient, the NAVY need the range/performance but don't care about the extra span. Also they are apparently not certified for Civilian 737 use......too wide for some domestic airport gates so no operator wants them?