And with an ATP, for working outside of the USA would I also need a FCC commercial radio licence? Or this is only for the Commercial?
You'll need it for any certificate flying outside the US.
Logging it as X-C should suffice.
Be wary of logging P1 time that way. Certain criteria (not 100% sure, check) has to be met, such as a safety pilot flying with a pilot logging simulated IFR time. As such, you without an FAA IFR rating, cold only log it as safety pilot time.
I don't have the FAR-AIM to hand, but you need to check whether you can use some of the level D simulator time as night hours for the issue of an ATP. Most of the sim sessions will be simulated night/IFR.
"A private or commercial pilot may log PIC time when "acting as pilot-in-command of an aircraft on which more than one pilot is required under the - - - - regulations under which the flight is conducted". [61.51 (e)(1)(ii)]
Normally, a safety pilot, required by regulations, who scans for traffic for a pilot flying under simulated instrument conditions is not pilot-in-command and thus logs second-in-command. However, if the two pilots agree that the safety pilot is designated pilot-in-command, the safety pilot/pilot-in-command may log PIC since he is the pilot responsible for the operation and safety of the aircraft. The pilot flying is "sole manipulator of the controls for which the pilot is rated"" and may also log PIC. Therefore, two private pilots may log PIC under these conditions. However, the safety pilot/pilot-in- command must realize that anything that occurs during the flight is his responsibility. "
"However, two pilots may not simultaneously log PIC when one pilot is sole manipulator of the controls and the other is acting as pilot-in-command if the regulations governing the flight do not require more than one pilot.
"An airline transport pilot may log as PIC time all of the flight time while acting as pilot-in-command of an operation requiring an airline transport certificate." [61.51 (e)(2)] Previous regulations allowed a situation where three pilot (one an ATP) could log PIC simultaneously when conducting an operation which did not require an airline transport pilot. This is no longer allowed under the August 1997 revision."
X/C
"There are multiple definitions of cross-country time in 14 C.F.R. § 61.1 (b)(3), and these definitions apply differently based on how the cross-country time is being used to meet aeronautical experience requirements. Section 61. 1(b)(3)(i), in relevant part, states the general definition of cross-country time as time acquired during flight conducted in an aircraft, by a person who holds a pilot certificate, that includes a landing at a point other than the point of departure, and that involves the use of dead reckoning, pilotage, electronic navigation aids, radio aids, or other navigation systems to navigate to the landing point. Section 61.1 (b)(3)(ii), in relevant part, defines cross-country time for the purposes of meeting the aeronautical experience for a private pilot certificate, a commercial pilot certificate, an instrument rating, or for the exercise of recreational pilot privileges. For these purposes, cross-country time is time acquired during a flight conducted in an appropriate aircraft that includes a point of landing that was at least a straight-line distance of more than 50 nm from the original point of departure and that involves the use of dead reckoning, pilotage, electronic navigation aids, radio aids, or other navigation systems to navigate to the landing point. Section 61.1(b)(3)(vi), in relevant part, defines cross-country time for the purposes of meeting the aeronautical experience for an airline transport pilot certificate. For this purpose, cross-country time is time acquired during a flight conducted in an appropriate aircraft that is at least a straight-line distance of more than 50 nm from the original point of departure and that involves the use of dead reckoning, pilotage, electronic navigation aids, radio aids, or other navigation systems. Section 61. 1(b)(3)(v), in relevant part, defines cross-country time for the purposes of meeting the aeronautical experience for any pilot..."
So, it would appear at first glance under the FAA you need 500 hours (ATP) x/c time which doen not include a landing at an airfield more than 50NM straight line distance etc. for an ATP but does for a CPL.
http://www.faa.gov/about/office_org/...is%20Glenn.pdf