Model Airplanes

The FAA has published a final rule to the Federal Register, regarding the removal of certain aircraft engine cylinders. The cylinders in question (Engine Components International Division [ECi] cylinders) are currently in use in aircraft with Continental engine model -520 and -550 reciprocating engines, as well as engine models like the -470 which were able to use the cylinder through an approved supplemental type certificate. According to the final rule, or airworthiness directive, this will affect an estimated 6,200 engines currently in service. It is also estimated that compliance with the ECi engine cylinder AD, which goes into effect on September 15th, will cost $11,520 per engine.

More Details on the ECi Engine Cylinder AD

The FAA cites a total of 82 ECi cylinder failures during the 11 years they’ve been in use. This includes two fatal accidents that have been attributed to those failures.

The AD requires that after September 15th, any affected cylinder assembly with 680 or fewer operating hours time-in-service (TIS) since new be removed from service before reaching 1,000 operating hours TIS since new. Assemblies with between 680 and 1000 operating hours TIS since new would need to be removed from service either within the next 320 operating hours TIS or within 1,160 operating hours TIS since service, whichever happens first. Assemblies with more than 1,000 operating hours TIS since new must be removed from service either within the next

Article source: https://disciplesofflight.com/faa-final-eci-engine-cylinder-ad/

Summer is a time when natural light can lend an otherness to almost any subject. From Ryan McGinley’s playful homage to Renaissance nudes, to Nadav Kander’s eerie inlet at Mont Saint-Michel, these shots by contemporary photographers are testament to that.

As the holiday snaps that flood Instagram show, the light can also enhance even the most cliched chronicle of a summer vacation. We take a different kind of photograph in the sun, sensing that it makes us look better because it makes us feel better. The self we display in a selfie, or so we tell ourselves, is leaner, lither, more tanned, more relaxed and less self-conscious.

A snapshot of a sandy beach and a blue sea, especially taken through the V of tanned feet, would once have been consigned to a pile of envelopes in a cupboard, to be looked at briefly and bemusedly years later in a bout of decluttering. Now, shared in real time on Instagram, it is something else: more knowing, artful and presumptive. “I am here and you are not,” is the subliminal message it carries to friends back home. Yet sunlight falling on skin or sand bestows a shimmer of lightness – literal and atmospheric – on even the most inane snapshot.

Against all of this, I can understand why even a contemporary master of deep colour such as Alec Soth would choose to shoot someone diving into a rocky swimming hole in monochrome. Here is the chill of summer, the childhood risk of

Article source: https://www.theguardian.com/artanddesign/2016/aug/14/my-best-summer-photograph-sally-mann-ellen-von-unwerth

We seem to be living in an accelerated age of revolutionary technological breakthroughs. Barely a day passes without the announcement of some major new development in artificial intelligence, biotechnology, digitisation or automation.

Yet, those who are supposed to know where it is all taking us cannot make up their minds.

At one end of the spectrum are the techno-optimists, who believe we are on the cusp of a new era in which the world’s living standards will rise more rapidly than ever.

At the other end are the techno-pessimists, who see disappointing productivity statistics and argue that the new technologies’ economy-wide benefits will remain limited.

Then there are those — the techno-worriers? — who agree with the optimists about the scale and scope of innovation but fret about the adverse implications for employment or equity.

What distinguishes these perspectives from one another is not so much disagreement about the rate of technological innovation. After all, who can seriously doubt that innovation is progressing rapidly?

The debate is about whether these innovations will remain bottled up in a few tech-intensive sectors that employ the highly skilled professionals and account for a relatively small share of the gress domestic produst (GDP) or spread to the bulk of the economy.

The consequences of any innovation for productivity, employment, and equity ultimately depend on how quickly it diffuses through labour and product markets.

Technological diffusion can be constrained on both the demand and supply

Article source: http://www.jordantimes.com/opinion/dani-rodrik/innovation-not-enough