Model Airplanes

PHOENIX – In 2008, a thriving company named Science Care Inc developed a 55-page national expansion plan. The internal document projected the yield on raw material to the decimal point and earnings to the dollar.

The goal: to maximize profits from the sale of human bodies donated to science. The company’s model for ensuring quality: McDonald’s Corp.

Science Care founder Jim Rogers aimed to provide customers with the same cuts from cadavers no matter which Science Care branch handled the order. That’s why he cited production methods perfected by Ray Kroc, the visionary who turned a hamburger stand into a fast-food empire, said an executive who worked closely with Rogers.

“He used the McDonald’s analogy that no matter where you go, you get the same exact thing,” the executive, former quality assurance director John Cover, said in a 2009 sworn statement.

“It was all about quality,” Cover said in a recent interview. “When you get a Big Mac, it’s going to taste like a Big Mac, whether you’re in Louisiana or San Francisco.”

McDonald’s and Kroc got rich selling hamburgers. Science Care and Rogers have made millions from human body parts.

The ocean can seem like an acoustically disorienting place, with muffled sounds from near and far blending together in a murky sea of noise.

Now an MIT mathematician has found a way to cut through this aquatic cacaphony, to identify underwater sound waves generated by objects impacting the ocean’s surface, such as debris from meteorites or aircraft. The results are published this week in the online journal Scientific Reports.

Lead author Usama Kadri, a research affiliate in MIT’s Department of Mathematics, is applying the team’s acoustic analysis in hopes of locating Malaysia Airlines flight 370, an international passenger plane that disappeared over the southern Indian Ocean on March 8, 2014.

Since the aircraft’s disappearance, authorities have confirmed and recovered a few of the plane’s parts. However, the bulk of the aircraft has yet to be identified, as has any reasonable explanation for its demise.

Kadri believes that if the plane indeed crashed into the ocean, it would have generated underwater sound waves, called acoustic-gravity waves, with a very specific pattern. Such waves travel across large distances before dissipating and therefore would have been recorded by hydrophones around the world. If such patterns can be discerned amid the ocean’s background noise, Kadri says acoustic-gravity waves can be traced back to the location of the original crash.

In this new paper, Kadri and his colleagues have identified a characteristic pattern of acoustic-gravity waves produced by impacting objects, as opposed to other sources such as earthquakes or underwater explosions. They have looked for this pattern in data collected

Article source: http://news.mit.edu/2017/ocean-sound-waves-may-reveal-location-incoming-objects-1026

Business turbine airplane operations accounted for more than half of all turbine airplane accidents in the U.S. between 2000 and 2016. Over that 16-year period, business jets and turboprop airplanes combined suffered 771 accidents, 235 of which caused fatalities, according to the NTSB. These numbers represent 56 percent of all turbine airplane accidents in the U.S. (including the airlines) and 96 percent of the fatal accidents between 2000 and 2016.

Turboprops accounted for 70 percent of all U.S. turbine business airplane accidents and 75 percent of the fatalities. The 48 fatal accidents involving business jets were eight times the six fatal accidents involving passenger-carrying jetliners. However, the 159 fatalities from those bizav jet accidents were 31 percent of the 507 deaths on scheduled passenger flights by much more capacious airliners. On the airline side, 260 crew and passengers perished in a single accident, and in another airline accident a flight attendant was killed during an emergency evacuation after the airliner landed.  

This data is derived from an NTSB computer run, prepared for AIN, that provides a detailed summary of what the agency concluded was every turbine airplane mishap that occurred in the U.S. between 2000 and 2016 under Parts 91, 91K, 135 on-demand, 135 scheduled, 121 and 125 (a total of 1,407 accidents). The NTSB also provided a list of the accident rates of these operational segments for the years 2004 through 2015.

Person vs Parcel and other Non-pertinent

The purpose of this article is to focus on the private and on-demand

Article source: https://www.ainonline.com/aviation-news/business-aviation/2017-11-06/bizav-comprised-half-turbine-accidents-2000-2016