Bibliographic Details
| Title: |
Longitudinal Stability Criteria for a Propeller-Driven Aircraft. |
| Authors: |
Iosilevskii, Gil1 igil@aerodyne.technion.ac.il |
| Source: |
International Journal of Aerospace Engineering. 2010, p1-7. 7p. 1 Chart, 1 Graph. |
| Subjects: |
Longitudinal stability of airplanes, Propeller-driven aircraft, Center of mass, Drone aircraft, Airplane motors, Inertia (Mechanics) |
| Abstract: |
The Routh criterion is used to assess longitudinal dynamic stability of a propeller-driven aircraft. Under a few plausible assumptions on possible ranges of the pertinent stability derivatives, it reduces to a pair of simple conditions imposing a traditional aft limit (the forward of the maneuver and the neutral-speed-stability points) on the center-of-gravity position and an upper limit on the longitudinal moment of inertia. It is demonstrated that most aircraft have sufficiently small inertia to remain stable as long as their center-of-gravity is properly placed. At the same time, sailplane-like aircraft (as, e.g., long endurance UAVs), with an engine installed at the rear extremity of the aircraft, may have sufficiently high inertia to become unstable regardless of their center-of-gravity placement. [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
