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A method and apparatus comprising a projector system and a structure connected to the projector system. The projector system is configured to project an image on an exterior surface of an aircraft. The structure is configured to be connected to the aircraft and has a shape configured to reduce an un

A method and apparatus comprising a projector system and a structure connected to the projector system. The projector system is configured to project an image on an exterior surface of an aircraft. The structure is configured to be connected to the aircraft and has a shape configured to reduce an undesired airflow caused by the projector system when the aircraft is in flight.

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1. An apparatus comprising: a projector system configured to project an image on an exterior surface of an airplane comprising a first moveable structure, wherein the projector system comprises a display unit connected to the first moveable structure on the airplane, andwherein the projector system

1. An apparatus comprising: a projector system configured to project an image on an exterior surface of an airplane comprising a first moveable structure, wherein the projector system comprises a display unit connected to the first moveable structure on the airplane, andwherein the projector system includes a detection system configured to determine a movement of the first moveable structure on the airplane and to compensate for the movement by changing a manner in which light is emitted from the display unit. 2. The apparatus of claim 1, wherein: the display unit further comprises a second structure connected to the projector system, wherein the second structure is connected to the airplane and has a shape configured to reduce an undesired airflow caused by the projector system when the airplane is in flight;the projector system is configured to project the image with a desired quality and a desired throw angle;the projector system comprises a display control system configured to align the image on the exterior surface of the airplane;the second structure comprises a housing configured to hold the projector system;the housing is configured to protect the projector system from an environment around the airplane during flight; andthe housing is a fairing substantially flush with or located above the exterior surface of the airplane. 3. The apparatus of claim 2, wherein: the projector system is a laser projector system; andthe housing is associated with a horizontal stabilizer of the airplane, wherein the horizontal stabilizer of the airplane is the first moveable structure, and wherein the laser projector system is configured to display the image on the vertical stabilizer of the airplane. 4. The apparatus of claim 3, wherein the fairing is located within the first moveable structure and wherein the second structure further has a transparent section that is configured to pass light from the laser projector system onto the vertical stabilizer. 5. The apparatus of claim 4, wherein the second structure further comprises: a cover for an opening in the horizontal stabilizer, wherein the transparent section is in a location on the cover. 6. The apparatus of claim 2, wherein the fairing is configured to be connected to the exterior surface of the airplane, wherein the fairing has the shape configured to reduce the undesired airflow and aerodynamic drag. 7. The apparatus of claim 3 further wherein: the detection system is configured to detect a change in a location of the housing, wherein the laser projector system is configured to change the manner in which the light is emitted from the display unit to maintain the desired display of the image on the vertical stabilizer of the jet airplane. 8. The apparatus of claim 1 further wherein: the detection system is configured to detect a presence of a person in a beam of light projected to form the image and to change a projection of the beam of light to avoid the person. 9. The apparatus of claim 2 further comprising: a heater system configured to generate heat for the projector system; andwherein a hermitic seal is configured to protect the projector system from the environment around the airplane during flight. 10. The apparatus of claim 1, wherein: the projector system is configured to project the image based on a triggering event; andthe image changes to form a change, wherein the change is based on a location of the airplane or a status of the airplane and wherein the change is from the image to a different image, a video, or an animation of the image. 11. A method for displaying information on an exterior surface of an aircraft with a first moveable structure, the method comprising: projecting an image using a display unit, wherein the display unit comprises a projector system and is connected to the first moveable structure on the aircraft;determining the movement of the first moveable structure on the aircraft using a detection system associated with the projector system; andcompensating for the movement using the detection system by changing in a manner in which light is emitted from the display unit and by maintaining a desired display of the image on the exterior surface of the aircraft during the movement of the first moveable structure on the aircraft. 12. The method of claim 11 further comprising: emitting a pattern of infrared light onto the exterior surface of the aircraft from the first moveable structure, wherein the determining the movement of the first moveable structure uses the pattern of infrared light;aligning the image on the exterior surface of the aircraft;protecting the projector system from an environment around the aircraft;wherein the image is projected with a desired quality and a desired throw angle;wherein the changing of the manner in which the light is emitted from the display unit is to perform the maintaining of the desired display of the image on the exterior surface of the aircraft during the movement of the first moveable structure;wherein the changing of the manner in which the light is emitted from the display unit is responsive to the movement of the first moveable structure; andwherein the aircraft is a jet airplane comprising two fixed wings, a fuselage, at least two engines, a horizontal stabilizer connected to a tail section of the fuselage, and a vertical stabilizer connected to the tail section of the fuselage. 13. The method of claim 12, wherein: the projector system comprises a laser projector system;the display unit comprises a second structure connected to the jet airplane;the second structure comprises a housing configured to hold the laser projector system and configured to be associated with the horizontal stabilizer of the jet airplane;the horizontal stabilizer of the jet airplane is the first moveable structure; andthe housing is a fairing substantially flush with or located above the exterior of the jet airplane;the housing further provides a hermitic seal configured to protect the projector system from the environment around the jet airplane; andthe laser projector system is configured to display the image on the vertical stabilizer of the jet airplane. 14. The method of claim 13, wherein the fairing is located within the first moveable structure and wherein the second structure further has a transparent section that is configured to pass the light from the laser projector system onto the vertical stabilizer. 15. The method of claim 14, wherein the second structure further comprises a cover for an opening in the horizontal stabilizer, wherein the transparent section is in a location on the cover and wherein the second structure has a shape configured to reduce an undesired airflow caused by the display unit when the aircraft is in flight. 16. The method of claim 13, wherein the fairing is configured to be connected to the exterior surface of the aircraft, wherein the fairing has a shape configured to reduce an undesired airflow. 17. The method of claim 11 further comprising: a heater system configured to generate heat for a laser projector system. 18. The method of claim 11, wherein: the projector system is configured to project the image based on a triggering event; andthe image changes to form a change, wherein the change is based on a location of the aircraft or a status of the aircraft and wherein the change is from the image to a different image, a video, or an animation of the image. 19. An airplane comprising: a projector system configured to project an image on an exterior surface of the airplane, wherein the projector system comprises a display unit connected to a first structure on the airplane, wherein the first structure on the airplane is subject to a movement, wherein the projector system includes a detection system configured to determine the movement of the first structure on the airplane and to compensate for the movement by changing a manner in which light is emitted from the display unit. 20. The apparatus of claim 1 wherein: the image comprises a focused image;the first movable structure on the airplane is subject to a movement that tends to distort a focus of the focused image; andthe projector system compensates for the movement by maintaining a desired display of the focused image on the exterior surface of the airplane during the movement of the first movable structure on the airplane.