Guidance, Navigation, and Control

The functions of guidance, navigation, and control are vital to all forms of air and space flight. The Space History collections in this area attempt to reflect that significance and illustrate the breadth of the topic.

In practice these three functions blend into one another, and artifacts from this collection often perform multiple duties. For this collection, "guidance" shall refer to controlling a vehicle during acceleration or deceleration, mainly during the powered phase of flight, i.e. to align the thrust vector of a rocket or jet engine to coincide with (or deviate slightly from) the vehicle’s center of mass, or to use aerodynamic controls such as fins to aim the vehicle properly during its flight. Guided missiles, which are powered for most of their flight, require continuous guidance (hence the name), but in a typical space mission, a rocket burns for only a fraction of the total time of the mission and would require guidance for only that short period of time. Once the rocket engines shut off, there follows the function of "navigation," which is to get from one position in space to another. In contrast to navigation at sea or in the air, space navigation typically consists of long periods of coasting with periodic corrections. Finally, "control" is defined as orienting the space craft in its rotational axes to perform its various operations, such as pointing a telescope, orienting an antenna toward Earth, preparing the vehicle for a rocket burn, etc. Again in contrast to aircraft and ships, in the absence of an atmosphere a spacecraft may be oriented in any direction, but it is usually not desirable to allow it to tumble with no control.

"Control" is also used in another context, namely the management of a mission from the ground (e.g. NASA’s "Mission Control" in Houston).  Passenger aircraft fly with periodic communication with air traffic controllers on the ground, but in general they fly with a great deal of autonomy. In contrast, spacecraft that carry a human crew are intensively managed from the ground, where controllers monitor the vehicle’s performance, ensure the safety of the crew, and manage the crew’s schedule and operations. Robotic spacecraft may require less control, but during critical phases of their missions they are also intensively controlled from Earth. The National Air and Space Museum’s collections in this area attempt to show the breadth and depth of this topic by a judicious selection of artifacts.

Your Search Results (1 to 12 of 181)

  • Guidance System, Minuteman III
    Country of Origin: United States of America
    Manufacturer: Rockwell International Corporation
    Credit Line: Transferred from the United States Air Force.
    Type: INSTRUMENTS-Navigational
  • Autopilot, V-1
    Country of Origin: Germany
    Manufacturer: Askania Werke A.G.
    Credit Line: Gift of the Army and Navy Club
    Type: SPACECRAFT-Unmanned-Guidance & Control
  • Gyro, Autopilot, V-1
    Country of Origin: Germany
    Manufacturer: Askania Werke A.G.
    Credit Line: Transferred from the United States Air Force
    Type: INSTRUMENTS-Navigational
  • Guidance System, Stellar-Inertial, XN-2
    Country of Origin: United States of America
    Manufacturer: North American Aircraft Company
    Credit Line: Transferred from the United States Air Force.
    Type: INSTRUMENTS-Navigational
  • Vacuum Radio Tube, R.H. Goddard Type
    Country of Origin: United States of America
    Manufacturer: Collins Radio Co.
    Credit Line: Gift of Mrs. Robert H. Goddard
    Date: ca. 1936
    Type: EQUIPMENT-Communications Devices
  • Computer, Guidance, Gemini 2
    Country of Origin: United States of America
    Manufacturer: IBM Corporation
    Credit Line: Transferred from the National Aeronautics and Space Administration
    Type: INSTRUMENTS-Computers, General Purpose
  • Computer, Guidance, Gemini 8
    Country of Origin: United States of America
    Manufacturer: IBM Corporation
    Credit Line: Transferred from the National Aeronautics and Space Administration
    Type: INSTRUMENTS-Navigational
  • Indicator, Attitude, Gemini 7
    Country of Origin: United States of America
    Manufacturer: Lear Siegler Inc.
    Credit Line: Gift of the McDonnell-Douglas Corporation.
    Type: INSTRUMENTS-Flight Management
  • Gyro, Rate, Gemini 8
    Country of Origin: United States of America
    Manufacturer: Honeywell Inc.
    Credit Line: Gift of Honeywell Inc.
    Type: EQUIPMENT-Electronics
  • Controller, Attitude, Gemini 8
    Country of Origin: United States of America
    Manufacturer: Honeywell Inc.
    Credit Line: Transferred from the National Aeronautics and Space Administration
    Type: INSTRUMENTS-Flight Management
  • Guidance System, Stellar-Inertial, Northrop "Snark"
    Country of Origin: United States of America
    Manufacturer: Northrop Aircraft Inc.
    Credit Line: Gift of the Northrop Corporation.
    Type: INSTRUMENTS-Navigational
  • Indicator, Attitude Direction, Gemini
    Country of Origin: USA
    Manufacturer: Lear Siegler Inc.
    Credit Line: Transfer from National Aeronautics and Space Administration
    Type: INSTRUMENTS-Navigational

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