[PAR35]

No. Too darn slow at about 260K.

Not even close to correct.

Cruising speed 350 kts.
Economical cruising speed 340 kts.
http://www.airforce-technology.com/projects/hercules/specs.html

Cruise speed for the P-3C 328 kts, or slightly slower than the cruise speed for the C-130J.
http://www.chinfo.navy.mil/navpalib/factfile/aircraft/air-p3.html

[68skylark]

Interesting. Thanks for the links.

[pabianice]

Now the bad news. The C-130J is under consideration for being dropped because of continuing development and operational problems.