With the gearbox, propeller and hydrofoils defined, we then created the undulation system, which would enable the force generated by propeller, and transmitted by the gear, to cause the hydrofoils to change their
angle of attack in the trawls executed by the vessel (Fig.
Mechanical undulating towed vehicle for collection of oceanographic data
As previously mentioned, the
angle of attack is varied from 0[degrees] to 180[degrees] with an increment of 2[degrees], making a total of 46 angles of attack for each configuration.
Numerical investigation of galloping instabilities in Z-shaped profiles
Figure 5 presents the dependence [bar.[i.sub.0]] = f([bar.i']), the analysis of which demonstrates that hysteresis by critical
angle of attack occurs in different values of inability to calculate the flow at [bar.i'] > 1.
Effect of hysteresis in axial compressors of gas-turbine engines
The combined spanwise average Nusselt number for the rectangular wing at an
angle of attack of [beta] = 26[degrees] and Reynolds number 100 is 35.38 % higher than that of the plain duct at location X=2.24.
Numerical analysis of a plate-fin cross flow heat exchanger having plane triangular secondary fins and inline arrangement of rectangular wing vortex generator
The [C.sub.L] presented the maximum values at an
angle of attack of 45[degrees] ([C.sub.L] [approximately or equal to] 0.6).
Hydrodynamic analysis of different thumb positions in swimming
Flight tests with this F-18 Harv (High Alpha Research Vehicle) from 1987 to 1996 included Herbst turns and the use of an offensive descending spiral inside the flight path of a tightly turning conventional opponent, tracking the target for up to ten seconds and a 60[degrees]
angle of attack.
Twisting thrust for supermanoeuvrability: the majority of aircraft engines produce forward or reverse thrust roughly parallel to the fuselage axis. Given variable-geometry exhaust systems, combat aircraft powerplants can also generate substantial jet lift and pitching and yawing movements
The same level of importance is applied to the
angle of attack of the cutting edge of the plow.
Setting up that snowplow - a pro looks at the do's and dont's
Like the lawsuits against the asbestos industry, the fraud
angle of attack in tobacco litigation may take some trial and error fine-tuning before being packaged in its most compelling and effective light.
Butt out: finally, a way to beat the cigarette companies in court
Reporting in the June 14 SCIENCE, they confirmed that rapid changes in a dragonfly wing's speed and
angle of attack do indeed generate vortices and unsteady flows.
On the wings of a dragonfly; the way a dragonfly flies may inspire new aircraft designs
"The disagree alert was tied or linked into the
angle of attack indicator, which is an optional feature on the MAX.
Boeing confirms safety alert in 737 Max didn't work in all planes
In the original design, MCAS used data from one of two
angle of attack indicators to determine the deflection angle of the horizontal stabilizer.
BOEING SOFTWARE UPDATES
According to the (https://www.nytimes.com/2019/03/21/business/boeing-safety-features-charge.html) New York Times , the jets were missing features that would have helped the pilots detect dangerous readings. The crafts were brand new (https://www.ibtimes.co.in/boeing-reshuffles-top-engineers-amid-737-max-crisis-794205) Boeing 737 Max planes but were missing the
angle of attack indicator or an
angle of attack disagree light.
Crashed Boeing Planes May Have Been Missing Safety Features
Angle of attack sensors on the aircraft tell the MCAS to automatically point the nose of the plane down if it is in danger of going into a stall.
Black box data find similarities in Ethiopian and Lion Air crashes
If there were some way I could make a series of trips back in time to change things, one of the stops on my itinerary would be to somehow infiltrate the small cadre of early pilots and airplane designers to convince them to use a word other than "stall" to describe what happens when a wing exceeds its critical
angle of attack. The word obviously has numerous other applications, and using it for this purpose has confounded student pilots and television news anchors ever since.
Separation Anxiety: How we think about airspeed, stalls and stall warnings while maneuvering may have a major role in loss-of-control accidents