Air Force One - Shanwick Oceanic
Air Force One coordinates an oceanic crossing with Shanwick Radio during a 2013 presidential trip.
Summary
This recording captures a routine exchange between Air Force One and Shanwick Oceanic Radio as the presidential aircraft enters North Atlantic airspace. The crew coordinates Controller-Pilot Data Link Communications (CPDLC) and confirms a descent while transiting toward Europe for the G8 summit.
Analysis
This recording is notable primarily for the callsign "Air Force One," representing the United States President (Barack Obama at the time) in transit. The exchange takes place as the aircraft enters the Shanwick Oceanic Control Area, which manages the eastern half of the North Atlantic. While the communications are strictly professional and procedural, they offer a rare glimpse into the routine handling of high-priority diplomatic flights in civilian oceanic airspace.
The primary technical focus of the exchange is CPDLC (Controller-Pilot Data Link Communications). In oceanic environments where traditional VHF radio range is limited, CPDLC allows pilots and controllers to exchange text-based messages via satellite or HF data links. The crew is confirming their connection status at 60 North, 20 West, a common entry point for traffic heading toward the United Kingdom and Ireland.
The controller mentions "telephoning Gander," referring to Gander Oceanic in Newfoundland, Canada. Because the North Atlantic is split between different authorities, controllers must manually coordinate the "handover" of aircraft to ensure seamless tracking across the ocean. The mention of "Alpha 10" likely refers to a specific oceanic waypoint or entry gate used for routing.
One interesting technical detail is the altitude: "out of 230 for 220" (23,000 feet descending to 22,000 feet). This is significantly lower than the typical cruising altitude for a Boeing 747 (VC-25A) on a long-haul flight, which usually stays between 31,000 and 41,000 feet. This lower altitude was likely due to the specific arrival procedures for Northern Ireland or airspace restrictions surrounding the presidential arrival for the G8 summit.
The recording concludes with a standard "Roger" and "Good day," highlighting the seamless integration of military/diplomatic assets into the civilian Air Traffic Management (ATM) system.