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Showing posts with label Changes. Show all posts
Showing posts with label Changes. Show all posts

Sunday, 12 February 2012

Plane in Reno Air Crash Underwent 'Radical' Changes to Compete

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RENO, Nev. –  The World War II-era plane that plummeted into an air-race crowd like a missile bore little resemblance to its original self. It was rebuilt for speed, if not for stability.

The 65-year-old "Galloping Ghost" underwent years of massive overhauls that took a full 10 feet off its wingspan. The ailerons -- the back edges of the main wings used to control balance -- were cut from about 60 inches to 32.

Pilot Jimmy Leeward had said the changes made the P-51 Mustang faster and more maneuverable, but in the months before Friday's crash even he wasn't certain exactly how it would perform.

"I know it'll do the speed," he said in a podcast uploaded to YouTube in June. "The systems aren't proven yet. We think they're going to be OK."

Investigators don't yet know what caused the plane to pitch sharply into the crowd at the National Championship Air Races in Reno, killing nine people, including Leeward, and injuring dozens. They have focused on the "elevator trim tab" -- a piece of the tail that helps the aircraft maintain lift and appeared to break off before the crash.

In the highly competitive, bravado-filled world of air racing, pilots go for broke on the ground and in the sky, hitting speeds of 500 mph. Leeward is the 20th pilot to die at the air races since they began 47 years ago, but Friday's crash was the first in which spectators were killed.

"Pilots are a special breed of confident, intelligent, driven perfectionists," said Ken Quick, a commercial airline pilot and a crew member for one of the teams that raced Friday. "They know what they do is dangerous and demanding, and they eagerly embrace both."

Leeward's own website alludes to the dangers -- and bragging rights.

"These guys are always on the edge knowing one wrong move, in one split second, could mean the end," the Leeward Air Ranch Racing Team website says. "NASCAR at 200 mph? Indy at 230 mph? Top Fuel at 300 mph? Mere Childs play. Welcome to the Big League."

Leeward had said the plane underwent several years of modifications before Friday's race, including lopping five feet off each wing, but he hadn't revealed many of the specifics. In the podcast, he called some of the changes "extremely radical," compared some to systems on the space shuttle and explained that he had increased the plane's speed capabilities to be more like those of a modern fighter jet.

"To control the airplane in the wind, and in different circumstances if anything happens, you need those types of speeds. You need jet speeds," he said.

Leeward was rounding a bend at dizzying speeds Friday when his plane took an oddly upward pitch, narrowly missing the packed grandstand. It then twirled just a few hundred feet off the ground and nose-dived into a section of VIP box seats, blasting out a 3-foot-deep, 8-foot-wide crater in a hail of metal, chairs and body parts.

Noah Joraanstad was blown off his feet as he tried to run away. Shrapnel hit his back, and he was covered in aviation fuel that burned his skin as spectators tried to wash it off.

From his bed Sunday at Northern Nevada Medical Center, where nine stitches were put in his head, Joraanstad said that when he looked back at the wreck, the plane was just gone.

"The biggest pieces I could see, it looked like just someone sprinkled Legos in every direction," said the 25-year-old, a commercial pilot from Alaska.

Officials said 69 people were treated at hospitals, including 36 who have been released. Six remained in critical condition Sunday. Only two of the spectators killed had been identified by Sunday afternoon: Michael Wogan, 22, of Scottsdale, Ariz., and Greg Morcom of Washington state.

Memory cards that may have come from the plane were found at the scene. The Galloping Ghost had a camera that faced outward, and the NTSB said the cards will be analyzed to see if there is any video.

FAA spokesman Ian Gregor said officials thoroughly vet all aircraft modifications before the planes are allowed to race. Reno Air Race Association technical experts also examine them to ensure they are air-worthy.

National Transportation Safety Board spokesman Terry Williams said his agency would look into the oversight of modifications to Leeward's plane as part of its investigation.

"We're not saying they did something right or wrong in this accident," Williams said. "We look at all angles in every accident investigation we do."

Pilot Ray Sherwood of Placerville, Calif., who raced at Reno from 1986 to 2005, said he's convinced that the crash was caused by modifications leading the trim tab to snap off. He said the same problem caused a modified P-51 Mustang to plunge into a neighborhood during the races in 1999, killing veteran pilot Gary Levitz.

Aircraft experts said losing the part could have forced Leeward to yank the plane up too fast, possibly overcorrecting and stalling, meaning the engines would be running but air breaks up over the wings, causing it to lose lift. He probably would have been able to pull out of it safely if he hadn't been at low altitude, they said.

"Assuming the aircraft had no other problems, and assuming the pilot had no problems, if he had enough altitude, you can easily get out of that no big deal ... Matter of fact, the P-51 was designed for that," said Ken Liano, a structural engineer and aircraft consultant. "But that's one of the problems with low-altitude flying: There's no time to correct."

Pilots modify their old P-51s to compete, but the alterations put additional stress on the aircraft, Sherwood said.

"If they are going to go as fast as they can, they have to modify the plane," he said.

Pilots were competing for a total of about $1 million in prize money, but Sherwood said the sport is really about the thrill. He said a P-51 like Leeward's would cost about $2.5 million.

"You can't make any money racing airplanes. It's too expensive to buy and maintain them," Sherwood said. "You do it for the love of the sport."

Leeward, 74, was a veteran racer who flew in more than 120 events and served as a Hollywood stunt pilot for movies including "Amelia" and "The Tuskegee Airmen." He has been described as a passionate pilot, a stickler for safety and an aggressive competitor.

In the June podcast, he chided a competitor to come take him on.

"I've got a standing $10,000 offer ... if he would come back, get in the airplane and fly it in the race. I'll pay him $10,000 cash on the table before he takes off just to get him in that race because when I beat that airplane, I want him in that seat," Leeward said.

Leeward's plane had a minor crash at the air races almost exactly 41 years ago. According to two websites that track P-51s that are still flying, it made a belly landing away from the Reno airport. The NTSB report on the Sept. 18, 1970, incident says the engine failed and the plane crash-landed short of the runway.

The future of the races is unclear. Joraanstad, the injured spectator, said he doesn't want to see the races end "but when you see people go through that much pain and people die, I don't know if it's worth it.

"It's just kind of that last edge -- frontier of flying -- where there's no limits, really, with the amount of power you can put in your plane," he added. "It's kind of the ultimate rush just to even watch these guys do what they do."


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Friday, 23 September 2011

Facebook Users Outraged Over New Changes

Facebook is at it again. The social network is tweaking the home pages of its 750 million users, much to the chagrin of some very vocal folks.


The world's largest online social network is expected to announce even more changes on Thursday, when it holds its annual f8 conference in San Francisco for developers who create games and other applications for its site.


The gathering follows a trickle of changes to Facebook in the past few of weeks. Some, such as larger photo displays and a feature that makes it easier to group friends into categories, were met with approval - or at least silence, which in the age of social-media oversharing could well be considered an endorsement.


Then came Wednesday, when many users woke up to find their homepages altered, with what Facebook calls "top stories" on the top of their pages, followed by "recent stories" listed in chronological order. On the right side, meanwhile, there's something called a "ticker," a live feed of all the ongoing activity that also appears in users' news feeds. It's a kind of Facebook inside Facebook, if you will.


By mid-morning, the words "new Facebook" quickly became one of the most discussed topics on Twitter. Many comments were negative, though some pointed out that Facebook makes many changes to its site and people eventually get used to it.


Then there were the jokes. John Kovalic from Madison, Wisconsin poked fun at Netflix's recent public relations fiasco, tweeting: "On the plus side, at least the new Facebook isn't calling itself "Qwikface." (Netflix, for those who missed it, is facing a big backlash from its subscribers because it raised prices and renamed its popular DVD-by-mail service "Qwikster.") Another online critic liked Facebook to a pop star who's addicted to cosmetic surgery.


For its part, Facebook has long asserted that it makes changes to keep users engaged, and that those alterations are often based on user requests. Other tweaks derive from the company's study of activity on Facebook and what it thinks people will enjoy using. Privacy advocates, meanwhile, have contended that Facebook changes its site in order to get people to share as much as possible about their habits, hobbies and likes -all to give advertisers a better picture of who to target.


In reality, it's a little of both. The way Facebook sees it, the more people enjoy using the site, the more time they'll spend there.


The latest changes are "tailored at making sure this news feed is what you want to see," said Mike Schroepfer, vice president of engineering at Facebook.


And, so far, that's been good for business -despite the grumblings of vocal minority of Facebook users. The company is expected to bring in $3.8 billion in worldwide advertising this year and $5.8 billion in 2012, according to research firm eMarketer.


Facebook is well-aware of perhaps the biggest downside of being the world's largest social network: With so many users, pleasing all of them is difficult. Schroepfer said the tweaks to the news feed are meant to appeal to a broad range of people, whether they have 15 friends and log in once a week or 800 and spend four hours a day on the site.


"We want to make sure we provide the right kind of basics to make sure that the core of Facebook is sharing and (seeing) the right kind of things," he said.


Facebook, though clearly king of social networks, is also competing with Twitter and Google Plus for attention. As such, the race to add new features has the potential to confuse users, said Debra Aho Williamson, principal analyst at eMarketer.


"It's like...who's going to come up with the best, most interesting features to keep people using their service," she said. "Everyone is copying each other, making sure whatever feature Twitter offers, Facebook offers, whatever Facebook offers, Google Plus offers."


On Thursday, Facebook is likely to push forward again, unveiling a slew of new ways to share content on its site and beyond. It keeps changing because if it doesn't, it could go the way of MySpace, the once-great social network that even an ownership stake by Justin Timberlake seems unlikely to rescue.


"The idea of a social network and what a social network is continues to evolve," Williamson said. "First it was creating a profile and sending status updates to your friends. Facebook is (now) going toward helping companies be more social and helping consumers and users feel like they have a stronger connection to these...businesses, media and things they are interested in."


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