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  2. Stability derivatives - Wikipedia

    en.wikipedia.org/wiki/Stability_derivatives

    Stability derivatives, and also control derivatives, are measures of how particular forces and moments on an aircraft change as other parameters related to stability change (parameters such as airspeed, altitude, angle of attack, etc.). For a defined "trim" flight condition, changes and oscillations occur in these parameters.

  3. USAF Stability and Control DATCOM - Wikipedia

    en.wikipedia.org/wiki/USAF_Stability_and_Control...

    Many textbooks utilized in universities implement the DATCOM method of stability and control. Shortly before compilation of the DATCOM was completed, a computerized version called Digital DATCOM was created. The USAF S&C Digital DATCOM implements the DATCOM methods in an easy to use manner.

  4. Aircraft dynamic modes - Wikipedia

    en.wikipedia.org/wiki/Aircraft_dynamic_modes

    Most aircraft trimmed for straight-and-level flight, if flown stick-fixed, will eventually develop a tightening spiral-dive. [2] If a spiral dive is entered unintentionally, the result can be fatal. A spiral dive is not a spin; it starts, not with a stall or from torque, but with a random perturbation, increasing roll and airspeed.

  5. United States Air Force Stability and Control Digital DATCOM

    en.wikipedia.org/wiki/United_States_Air_Force...

    In February 1976, work commenced to automate the methods contained in the USAF Stability and Control DATCOM, specifically those contained in sections 4, 5, 6 and 7.The work was performed by the McDonnell Douglas Corporation under contract with the United States Air Force in conjunction with engineers at the Air Force Flight Dynamics Laboratory in Wright-Patterson Air Force Base.

  6. Aircraft flight dynamics - Wikipedia

    en.wikipedia.org/wiki/Aircraft_flight_dynamics

    The three axes of rotation in an aircraft. Flight dynamics is the science of air vehicle orientation and control in three dimensions. The three critical flight dynamics parameters are the angles of rotation in three dimensions about the vehicle's center of gravity (cg), known as pitch, roll and yaw.

  7. Glossary of aerospace engineering - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_aerospace...

    Digital Datcom – The United States Air Force Stability and Control Digital DATCOM is a computer program that implements the methods contained in the USAF Stability and Control DATCOM to calculate the static stability, control and dynamic derivative characteristics of fixed-wing aircraft. Digital DATCOM requires an input file containing a ...

  8. Stabilator - Wikipedia

    en.wikipedia.org/wiki/Stabilator

    Grumman F-14 Tomcat jet fighter during a takeoff, with stabilators deflected upwards. A stabilator is a fully movable aircraft horizontal stabilizer.It serves the usual functions of longitudinal stability, control and stick force requirements [1] otherwise performed by the separate parts of a conventional horizontal stabilizer (which is fixed) and elevator (which is adjustable).

  9. Empennage - Wikipedia

    en.wikipedia.org/wiki/Empennage

    This is the simplest configuration that performs all three aspects of the function of a tail: trim, stability, and control. [10] Around 60% of current aircraft designs [10] — and about 80% ever [11] — incorporate this type of tail. Examples are found on aircraft of every size and role, from general aviation types like the ubiquitous Cessna ...