Nuclear reactors the size of wastebaskets could power our Martian settlements

Not your standard reactor

“A traditional light water cooled reactor makes a gigawatt in electricity. It’s a million times bigger, it’s very complicated, and it’s designed so it utilizes the fuel very well,” McClure says. At the size of the little Martian reactor, things get a lot less fuel-efficient. “But we do have a reactor that is very easy to predict, easy to operate, and in fact can control itself,” he says, which cuts down on the likelihood of accidents that might loom over a bigger power source.

In other words, we’re not risking a nuclear meltdown on Mars.

“Melting fuel would be difficult if not impossible for the applications that we’re doing,” McClure says. “The way we’ve got the physics designed, the reactor will basically put out as much heat as is being asked of it. So if we lose cooling and are just radiating a little bit of heat energy away, the reactor will drop in power to match that.”

It’s also designed to operate in the odd environment of space. We think of space as cold, but keeping a reactor cool in a vacuum isn’t so easy. There’s no material like air or water flowing by that can transfer heat away from your generators. Instead, the system relies on eight heat pipes, each filled with about one tablespoon of sodium, which has a high boiling point.

The sodium boils at high heat, when it gets near the parts of the pipes closest to the fissioning uranium fuel. The vapor travels down the

Article source: https://www.popsci.com/nuclear-reactors-mars

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Why the 747 Is Such a Badass Plane

On August 3, 1970, Pan Am 747 “Clipper Victor,” lifted off from JFK for San Juan, carrying 359 passengers and 19 crew. Flight 299 was a “redeye,” one of the first regularly scheduled routes since Pan Am inaugurated Boeing 747 service back in January.

Aboard was Esther de la Fuente, one of the first 747 flight attendants. In mid-flight, she was approached by a short, bearded man wearing a beret. “I want to go to Cuba,” he said. Esther thought he was joking and responded airily, “No. Let’s go to Rio. It’s a lot more fun at this time of year.”

Then he pulled out a gun, and the first ever 747 hijacking was underway.

Clipper Victor’s Captain, Augustus Watkins, declared an emergency and diverted for Havana. Flight 299 touched down at 5:31 am at Jose Marti Airport under the gaze of Fidel Castro.

As stunned passengers gathered their thoughts, Watkins exited the airplane with the hijacker, soon finding himself face-to-face with Castro. The Cuban leader then unloaded question after question about the flying behemoth, the largest airplane to ever land in his country.

It was the first time he had ever seen one with his own eyes.

A “Big” Deal

Five years before Wakins was forced to set down in Havana, Pan Am president Juan Trippe asked Boeing CEO Bill Allen for a long-range airliner twice the size of a 707 in order to circumvent

Article source: http://www.popularmechanics.com/flight/airlines/a15172254/747-badass-plane/

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Young family in favor of Brewer-Young Mansion rezoning in Longmeadow

LONGMEADOW — Todd Young, part of the Young family of Absorbine fame that gave the Brewer-Young mansion  its name, remembers how much fun it was growing up in and around the “big house” on Longmeadow Street.

There were epic hide-and-seek games through the 11,000-square-foot mansion and its massive basement. Kids launched model airplanes from the roof. 

“We had lots of fun,” he said Wednesday by telephone from his home in Raleigh, North Carolina. 

But Todd Young also remembers the financial pressures that forced his family to sell in 1989. The 1885 building with its 11 bedrooms, five full bathrooms and three half baths is just too expensive to maintain as a single-family home, he said.

That’s why he and his family support efforts to change the zoning for the mansion at 734 Longmeadow St. to allow the most recent owners to convert it to office space and earn enough money to pay for renovations and upkeep.

There are about 60 living Young descendants, he said. The opinion is a consensus among those he’s spoken with, including his uncle, Tyler Young.

“Yes, the house was our family home for over five generations, and we miss it dearly,” they wrote in a letter now being circulated. “And from the community’s perspective, it is a distinctive landmark that has significant historical and architectural value.

“But the other reality is that this aging edifice and its surrounding grounds is an extraordinary financial burden for anyone who owns it. To think otherwise would be foolish,” they wrote.

But

Article source: http://www.masslive.com/business-news/index.ssf/2018/01/young_family_writes_in_favor_of_brewer-y.html

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Commentary

Lompoc should regulate drones

By RON FINK

The Lompoc City Council was scheduled to discuss a proposed city ordinance concerning unmanned aerial vehicles on Jan. 16. To some, these are toys much like model airplanes, to others they are tools, and to still others they are a nuisance and an intrusion on their privacy.

The military, police, and fire agencies use these aircraft for important reconnaissance work during emergencies. Farmers, engineers, developers, surveyors, environmental scientists, geologists, miners, foresters, and many other specialties use them to help with their work.

In private use they began as harmless toys designed to amuse men, women, and children who had them. Soon though, a toy became far more sophisticated as cameras and leveling gyroscopes were added to give the operator an airborne view of his surroundings without flying in a piloted airplane.

This is where problems began; people didn’t like the idea of someone “peeping” on them from above, and they began to complain. This was particularly troubling to entertainment personalities and executive protection services.

The issue became further complicated when operators of unmanned aerial vehicles (UAV) began flying over emergency areas where retardant dropping aircraft, helicopters, and other piloted public safety tools had to stop being used until the UAVs were located and removed. Of course, this further aggravated the emergency.

Early in the life of these devices, the Federal Aviation Agency (FAA) didn’t have rules established concerning where they could fly. With no rules, it was left up to the operator to fly his craft safely; this wasn’t working

Article source: http://www.santamariasun.com/commentary/17033/lompoc-should-regulate-drones/

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Trucks: A Potential Headwind For Tesla


What is the main function of trucks announced by Tesla? Answer: Towing

Tesla, Inc (TSLA) branched into a completely new area of vehicle production when they unveiled their Tesla semi trucks in November. Semis are intended for only one purpose. Towing. Towing trailers of many different shapes and sizes to be more precise.

The one thing Tesla got right was to focus on short distance trucks. The drawback is this is a small segment of the overall truck market, and they are not alone in planning to use EVs for this segment. Competition is going to be strong. Batteries at this time are not conducive to long trips. To get the comparable amount of range that current diesel semis get the weight and size of the battery packs would be too large and heavy to be feasible or competitive. That is why Nikola Motors switched directions from batteries to hydrogen fuel cells to power their long and short range trucks.

It should not be lost on anyone that up until now Tesla has still not released any data on the unloaded weight of either of the semi designs showcased in November. This probably means one of two things or even both. 1) The truck weight is more than a comparable diesel day cab truck. 2) They are banking on some improvement to range with battery enhancements or improvements in output. That solution may never be achieved.

I still would like to know what the battery pack sizes are for the

Article source: https://seekingalpha.com/article/4138369-trucks-potential-headwind-tesla

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Where Real Warbirds Go to Fly | History | Air & Space Magazine

One day soon, before the end of this year, Steve Hinton will climb into the cockpit of one of the most significant fighters of World War II—one of the few World War II fighters he hasn’t flown—and take it up on what is likely the first flight of its type since 1946. Unlike all the other airplanes of that era that Hinton has piloted, this one’s a combat jet, the world’s first operational one, and the very Me 262 Schwalbe (Swallow) captured at Lechfield, Germany, in 1945 and later test flown at Wright Field, Ohio, by U.S. Army Air Forces Colonel Harold Watson. It will be the only authentic flying Me 262 in the world.

Original Jumo 004 engines have been undergoing restoration with improved metal parts for 14 years; the airframe, complete except for the cowlings, which will be added after the engines are installed, took 12. Warbird owners are known for long, loving, million-dollar restorations, but even in this wealthy community, an owner willing to undertake a project of this magnitude, running to the multi-millions, is as rare as the airplane itself.

Paul G. Allen, co-founder of Microsoft, began in the late 1990s to assemble the collection now known as the Flying Heritage Combat Armor Museum (FHCAM) at Paine Field near Seattle. A philanthropist who founded the Allen Institute for Brain Science and financed the creation of SpaceShipOne, the Allen Telescope Array for extraterrestrial research, and most recently, the discovery of the wreck of the USS Indianapolis, Allen says he has

Article source: https://www.airspacemag.com/history-of-flight/paul-allens-warbirds-180967709/

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Adient expands into aircraft seating with Boeing JV

Boeing is moving into making aircraft seats to try to reduce costly delays to deliveries by plane manufacturers, forming a joint venture with car seating leader Adient.

Adient Aerospace will develop and sell seats to airlines and leasing companies, both for installation on new airplanes and as retrofits on planes made by Boeing and rival manufacturers, the two companies said late on Tuesday.

They cited forecasts suggesting the aircraft seating market would grow from $4.5 billion in 2017 to $6 billion by 2026.

Adient’s tie-up with Boeing is the industry’s latest response to industrial problems in aircraft interiors, with congestion in cabin supplies contributing to late airplane deliveries in the past two years.

These can cost airplane manufacturers $100,000 a day, said Vertical Research Partners analyst Rob Stallard, making the bottlenecks in aircraft seating a top industry priority.

“Both companies are investing in this joint venture because the seating supply chain has been a persistent challenge for customers and the industry. Boeing and Adient believe we can add value to the market,” Adient’s global communications director, Ulrich Andree, told Reuters.

Adient, spun off from Johnson Controls in 2016, says it is the largest automotive seats maker, with a 34 percent share of a business dominated by five companies, and its 75,000 workers supply seats and interiors for 25 million vehicles a year.

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Article source: http://www.autonews.com/article/20180117/OEM10/180119716/adient-boeing-joint-venture-airplane-seating

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