Sorry for the minor glitches, guys.. Just to clarify, HH-60H, the FBI used to do the background checks, but (as of 9/11 I believe) it has since been contracted out to U.S. Security Investigations (a private firm). HH-60H is right in saying that the Army does have FW pilots, but according to USAREC, they are not training new FW pilots, hinting at a sundown of FW pilots for the the Army's OCS acquisitions, at least. I do have several friends that are West Point (USMA) grads that are flying helos and FW with the Army as comm. officers..
HH-60H, do the Marines do all of their OCS/TBS at Quantico? I was under the impression that it was done at P'cola for OCS and then off to TBS in Quantico.. Thanks for the clarifications..
For now, what is the difference between a pilot and a flight officer?
The main differences between the two are simple: front seat for pilot / back seat for NFO.

Actually, there's a lot more to it than just that.. To make it easy for the civilian world, think back to the RIO (Radar Intercept Officer) on "Top Gun." Remember "Goose" and "Maverick?" Goose was the NFO and Maverick the Pilot. There's a pretty simple rendition (sans the Navy's realism and some added Hollywood drama) of what the two do as far as Strike Fighters are concerned.. You should know that NFO's also do not operate on helos and are pilots to an extent (think navigator/co-pilot), but also engage in a different mission onboard the aircraft. Here's a simple breakdown of an NFO:
* Strike Fighter: F/A-18F: Serves as a Radar Intercept Officer (RIO), Weapons System Officer (WSO) for Marines, or a Forward Air Controller.
* Strike: EA-6B: Serves as an Electronic Countermeasures Operator (ECMO) and Navigator.
* Surveillance/Patrol: P-3: Serves as a Navigator or a Flight Engineer.
* TACAMO (Take Charge and Move Out): E-6B: Serves as an Airborne Communications Officer (ACO).
* AEWS (Airborne Early Warning System): E-2C: Serves as a Combat Information Center Officer (CICO).
These are the only aircraft (currently) that the Navy is training NFO's to fly onboard, with the sundown of the S-3 and the recent decommissioning of the F-14. There are "rumors" or plans to replace the P-3 with the P-8 and also plans to replace the EA-6B with the F/A-18G. Of course, these are purely "RUMORS," and until they are officially announced by the Navy, I wouldn't put much merit into them..
A good site for some NFO info is
CNATRA. There is also a good pipeline that is there, or I've included one that came from UPenn NROTC with a few of my own modifications, according to the Navy billets today..
As always, do some research on both pilots and NFO's. I'll let these other guys, who are the professionals, explain exactly what a pilot is/does.