Search results
Results from the WOW.Com Content Network
The student must be able to go into the stable arched position out of the aircraft before being progressed to dummy ripcord pulls. Dummy ripcord pulls (DPs) – the student demonstrates the ability to pull a dummy ripcord while still using the static line to actually deploy the canopy. Generally the student must perform three satisfactory DPs ...
Three cases for static stability: following a pitch disturbance, aircraft can be unstable, neutral, or stable. If an aircraft is longitudinally statically stable, a small increase in angle of attack will create a nose-down pitching moment on the aircraft, so that the angle of attack decreases.
is the static margin and must be negative for longitudinal static stability. Alternatively, positive angle of attack must generate positive yawing moment on a statically stable missile, i.e. must be positive. It is common practice to design manoeuvrable missiles with near zero static margin (i.e. neutral static stability).
Atmospheric instability § Stable atmosphere; Buoyancy. Static stability (also called hydrostatic stability or vertical stability) — the ability of a fluid at rest to become turbulent or laminar due to the effects of buoyancy. In sailing: Static stability — the angle of roll, or heel, achieved under constant wind conditions.
The typical range of stable swaying is approximately 12.5° in the front-back (antero-posterior) direction and 16° in the side-to-side (medio-lateral) direction. [3] This stable swaying area is often referred to as the 'Cone of Stability', which varies depending on the specific task being performed. [3]
Sign in to your AOL account.
Static lung compliance is the change in volume for any given applied pressure. [1] Dynamic lung compliance is the compliance of the lung at any given time during actual movement of air. Low compliance indicates a stiff lung (one with high elastic recoil ) and can be thought of as a thick balloon – this is the case often seen in fibrosis .
In a messy, adaptive system, no static set of rules can guarantee ethical outcomes. Cybernetic ethics calls us to adopt guiding principles that evolve with context.