A tilt-rotor used as commercial passenger transport and corporate transport for short trips, the Boeing Model 609 is the best suited and cost effective means. Sure aeros are flashy and the hip thing nowadays, but the bottom line is the most important thing. Besides they don't make an aero with as amny options as Air Force One. The 609 does. If you have the creds, that is.

RPG Stats:

Crew: 4, two pilots and two flight engineers, plus 12 passengers in comfort (extreme luxury).
AR:

• Main/wings/nacelles: 15
  
• Cockpit windshield: 14
  

• Main Body- 300
  
• Tail Section- 200
  
• Wings (2)- 150 each
  
• Engine Nacelles (2)- 150 each
  
• Props (2)- 75 each
  
• Cockpit- 150
  
• Port/Starboard Hatches (2)- 50 each
  
• Tail Ramp- 100
  

• Airplane mode: 450 mph
  
• Helo: 225 mph
  

Equipment:

• Radio: 300 mile range

Weapons: