AVwebFlash - Volume 13, Number 19b

May 10, 2007

By The AVweb Editorial Staff
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Top News back to top 

Congress Told FAA Lacks Road Map For NextGen

The FAA says that the current national airspace system won't be able to handle the expected tripling of air traffic by 2025, and there's generally no disagreement among stakeholders about the need for ATC modernization. But it is how we get there that is the big problem. In opening statements before a hearing Wednesday morning on ATC modernization, House Subcommittee on Aviation Chairman Jerry Costello, D-Ill., brought up the FAA's poor track record of previous ATC modernization projects and promptly added that "vigorous congressional oversight" will be needed for NextGen. DOT Inspector General Calvin Scovel testified that NextGen is a "high-risk effort" that will "involve billion-dollar investments by both the government and airspace users." During questioning, he submitted that the FAA and Joint Planning Development Office (JPDO) need to have a detailed R&D plan developed before Congress can properly appropriate funding for ATC modernization.

Dr. Gerald Dillingham, Director of Physical Infrastructure Issues at the Government Accountability Office, at the hearing also dubbed NextGen as "high risk" and expressed concern that the FAA will face a "leadership vacuum" during a critical point of modernization planning, citing Russell Chew's recent departure as chief of the FAA's Air Traffic Organization and agency Administrator Marion Blakey's pending exodus in late September when her term expires. Representing the general aviation community at the hearing, GAMA President and CEO Pete Bunce took the FAA, JPDO and DOT to task because they have not yet clearly defined "the system they intend to build." He also said a key issue of NextGen planning – the aircraft equipage component -- has largely been ignored. In this regard, Bunce suggested that Congress "incentivize" NextGen equipage in both commercial and general aviation aircraft so that operators don’t wait until the last minute to upgrade their avionics, as was the case with reduced vertical separation minimum (RVSM) implementation. The FAA and JPDO aren't expected to release a detailed ATC modernization road map until late July, which puts into question how the FAA developed cost levels for NextGen in its FY 2008 funding request delivered to Congress in mid-February.

AOPA Takes FSS Complaints To Lockheed

When the FAA handed off the Flight Service Station system to Lockheed Martin more than a year ago, AOPA supported the change, expecting to see improved service. But last week AOPA officials met with Lockheed to complain about long hold times, disconnects and lost flight plans. "This is not the level of service pilots expect," AOPA's Andy Cebula told Lockheed officials at the meeting. "Lockheed and the FAA must live up to the standards they set." Many of the problems have been blamed on computer glitches and on temporary staff shortages as workers are moved and retrained. Lockheed told AOPA that it plans to work through all these transitions soon, and pilots should see an overall improvement in quality by July. Meanwhile, if you experience problems with Lockheed's service, AOPA asks that you please report it on the company's Web site . AVweb posted an opinion poll last week asking if FSS consolidation has affected the quality of weather briefings. Only 6 percent of respondents had seen improvement, while 58 percent said service is worse since the consolidation. The rest said it was about the same or they didn't know.

Avidyne Addresses Garmin GNS430W Compatibility Issues

Avidyne has issued a "Mandatory Service Bulletin" (MSB) regarding its "Release 7 upgrade" due in the third quarter for Entegra primary flight displays. The MSB responds to some pilots' apparent interim action of using the displays in combination with Garmin GNS430 units upgraded to WAAS-capable 430W, though the devices are not presently compatible, according to the Avidyne. The software incompatibility is specific to Avidyne's EXP5000 PFD and will be corrected in the Release 7 update due later this year. Avidyne has not yet announced a specific release or a specific price for the Release 7 update. Initial testing of the Garmin GNS430W has shown that EX500 and EX5000 MFD units will eventually function properly together. Avidyne plans to send all Entegra owners who previously received the Release 6 update a notification when the company begins scheduling the Release 7 upgrades. Signup will be available shortly on the Avidyne Web site.

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News Briefs back to top 

Columbia Aircraft Recalls Furloughed Workers

Columbia Aircraft this week started to call back workers who were furloughed in March, the company said on Monday. "Essentially, we've spent the past six weeks cleaning house on our production line, upgrading tooling and implementing a number of lean enterprise practices to enhance efficiency," said Columbia vice president of manufacturing Chris Redgrave. The returning employees work in the assembly, upholstery and subassembly departments. Redgrave said he expects to recall the remaining laid-off workers soon. Columbia continues to deliver aircraft at a rate of four per week. The company furloughed about one-quarter of its workforce in late March, and at the same time replaced former CEO Bing Lantis with Wan Abdul Majid. Majid said the layoffs were part of a strategy to ensure the company's long-term success.

Angel Flight Is Now Air Charity Network

Angel Flight America, a well-known national network of nonprofit groups that arrange free flights for people in need, announced this week that it will change its name to Air Charity Network. "We are changing our name to better describe the comprehensive services currently offered through our network as well as those which may be added in the future," incoming Air Charity Network Chairperson Christel Gollnick said. The announcement made no reference to a court decision late last year in which Angel Flight Georgia was granted exclusive use of the name Angel Flight in the Southeast U.S. Air Charity Network helps people in need get life-saving specialized medical care. The network also arranges flights of compassion including travel for military personnel and their families as well as missions of disaster response. In 2006, some 7,200 volunteer pilots flew more than 23,000 charity flights.

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News Briefs back to top 

Dulles Tower Evacuated Due To Fumes

Air traffic controllers at Washington Dulles International Airport in Chantilly, Va., were evacuated after smoke and fumes were reported in the tower cab at about 10 a.m. on Wednesday. The controllers were moved to a nearby backup facility for about three hours while the tower was aired out, and nearby construction equipment, the source of the fumes, was moved away from the tower. About five controllers were taken to the hospital to be checked, according to Kieron Heflin, the facility representative for the National Air Traffic Controllers Association (NATCA). "We ran operations out of our little ramp tower, but we had no computer connections, no radar, no flight plans. We had radios and yellow legal pads and pencils. It was like working out of a tent," Heflin told AVweb. He said some aircraft were delayed, but as far as he knows there were no cancellations. "The computers that would keep track of all that weren't available, so I don't really know," he said. Airport spokesman Robert Yingling told The Associated Press on Wednesday morning that flights were not affected.

Air America Pilots Seek Federal Benefits

Imagine if you worked as a pilot for an outfit that was actually a secret project of the Central Intelligence Agency -- shouldn't you be eligible for a federal pension when it comes time to retire? That's what pilots and others who worked for Air America during the Vietnam War are claiming. The U.S. government has acknowledged that Air America was a "wholly owned subsidiary of the CIA," according to the Los Angeles Times, but employees at the time were told only that they were working on behalf of an unnamed "client." Pilots for Air America's 200 or so aircraft carried medical supplies and weapons, and flew other dangerous missions throughout Southeast Asia during the war. In the famous photograph of refugees climbing to a rooftop to be evacuated during the fall of Saigon, those helicopters were flown not by the military but by Air America pilots. The effort to obtain federal benefits for the former workers has been ongoing for years, the Times reports, but has gotten a boost recently with the change to Democratic control of Congress. Sen. Harry Reid, whose state of Nevada is home to some of the most vocal Air America retirees, became Senate majority leader. Reid is supporting new legislation that would that would require the CIA to reconsider the Air America case.

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News Briefs back to top 

EAA AirVenture To Celebrate Beechcraft's 75th Anniversary

Owners and operators of aircraft built by Beech Aircraft Corporation and its descendants have two major milestones to celebrate at EAA AirVenture in Oshkosh, Wis., this July. Special activities, flights and exhibits will mark the 75th anniversary of Beechcraft and the 60th anniversary of the Beechcraft Bonanza. The festivities will include a mass arrival of scores of Bonanzas on Saturday, July 21. On Sunday evening, pilots and owners of all Beechcraft models are invited to join all those Bonanza fliers, along with Hawker Beechcraft's own house band, the "Sons of Beech," in the North 40 aircraft camping area for a barbecue and celebration. "There is no better place to honor Beechcraft's contributions than at EAA AirVenture Oshkosh, where the whole world of aviation gathers each year to celebrate the passion, devotion, and ingenuity that the love of flight inspires," said Tom Poberezny, EAA president and AirVenture chairman. Other events will include a Beechcraft display on AeroShell Square, AirVenture's central showcase area, on Monday. EAA's Vintage Aircraft and Warbirds divisions will feature displays of appropriate Beechcraft airplanes and their forerunners throughout the week. And the weeklong schedule of air shows and showcase flying will include performances and flight displays of Beechcraft airplanes old and new.

NASA, FAA Team Up For "Smart Skies"

NASA and the FAA on Wednesday agreed to work together on an education project that aims to foster the development of students' skills in science, technology, engineering and math. Their first undertaking is a NASA curriculum called "Smart Skies," an online air traffic control simulator for grades 5 through 9. It introduces students to the concepts of controlling air traffic while teaching them skills in math and problem-solving. The effort will contribute to the development of a diverse, qualified aviation and space workforce for the future, according to NASA. Air traffic controllers at FAA's Oakland, Calif., facility helped to develop the program. The Web site features videos that explain how the ATC system -- "the world's biggest distance-rate-time problem" -- works. The site also challenges students to figure out how to use route or speed changes to line up a set of airplanes so they are three nautical miles apart, the last plane arrives as soon as possible, and the airplanes are never closer than two nautical miles.

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News Briefs back to top 

Helicopter Crash Due To Kite String?

A Philippines air force UH-1H Huey was carrying four people over the central island of Cebu when it crashed April 28 on a public street with nylon kite string entangled below its main rotor. Seven people on the ground were killed, as were two of the helicopter's crew. Lieutenant General Horacio Tolentino said a captain aboard the helicopter told him the aircraft was flying perfectly just before landing, and "there was no problem with the engine ... [the kite string] caused the stoppage of the rotor," he told ABC news. Though terrorists have used kites as anti-helicopter tactical weapons in the past, and kite flying is banned in the area, the general said last week that in this instance no blame was being assigned as no malice was intended. The air force did not initially announce plans to charge anyone.

More Hazards In The Sky?

If the thought of kite strings and blimp tethers sharing your airspace gives you the jitters, just imagine if this project comes true -- the deployment of massive wind generators in the jet stream, with cables stretching thousands of feet to the surface. The generators would take advantage of the high speeds of winds aloft to create electricity. Just a tiny fraction of the power available there could provide all of the world's energy needs, according to the San Francisco Chronicle. Bob Thresher, of the U.S. Department of Energy, told the Chronicle that the biggest obstacles may not be technical, but financial. "There's a tremendous advantage in going up [toward the jet stream] because there's much more energetic winds," he said. However, "you have to be able do it very cheaply because the cost of [ground-based] wind energy has come down so dramatically, it's becoming competitive with conventional sources." Small versions of the system could be used to supply basic services to remote villages where there is currently no power supply -- and presumably, few conflicts with air traffic. "In India alone there are a million villages without power," said Mac Brown, CEO of Magenn, a Canadian company that is developing the technology. "Our target market is that village which might have 50 or 60 or 70 huts. All they want is one or two lights in a hut, an electric water pump, and a TV and VCR for the village school. And they want a refrigerator for medicine, for when the doctor stops in once a month."

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News In Brief back to top 

On The Fly

Sens. Daniel Inouye, D-Hawaii, and Ted Stevens, R-Alaska, have signed on to co-sponsor a new bill that provides an alternative to the FAA's proposed reauthorization legislation. The bill has been called better than the FAA version, but still not friendly to GA...

The upgraded version of the Commemorative Air Force’s B-24 will be unveiled Saturday morning at the American Airpower Heritage Museum in Midland, Texas...

The pilot of a Grumman AA-5B was "wrestling" with a diabetic passenger who was experiencing "tremors" when the airplane crashed, the NTSB said in a preliminary report this week. Both were killed in the crash...

The National Institute for Aviation Research at Wichita State University has opened its first environmental test laboratory, which supports experiments to show whether aeronautical equipment can withstand various environmental stresses...

AeroPalm, an aviation GPS for Palm and Treo devices, now has terrain and conflict information...

According to Eclipse Aviation, 24 pilots have completed their Eclipse 500 type rating, including FAA, Eclipse and customer pilots, and an additional 26 customer pilots are in training now…

Quest Aircraft has hired Steve Zaat as director of customer service. Zaat's 35 years of experience includes work with the U.S. Army and Boeing.

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New On AVweb back to top 

The Savvy Aviator #44: Making Metal

Uh oh! You've discovered some ferrous metal in your oil filter, and the oil analysis lab reports a big spike in iron. Is it time to panic?

Click here for the full story.

teardown becomes necessary at 75% of TBO, the owner would most likely elect to do a major overhaul or exchange the engine for a factory rebuilt.

But is it time for the owner to panic and ground the airplane or pull the engine? No, not yet.

Current Guidance

Lycoming has issued a number of service bulletins offering guidance on how to respond to metal found during an oil filter inspection, and its recommendations have been revised several times. The latest guidance appears in Lycoming Service Instruction 1492C dated July 14, 2000, which has the unlikely title of "Piston Pin Plug Wear Inspection" but actually discusses the much broader subject of oil-filter inspection. Here's what SI-1492C has to say on the subject:

Evidence of metal contamination found in the filter element or screen requires further examination to determine the cause. Below is a list of recommended actions based on the appearance and approximate quantity of particles.

  1. 5 or fewer small (1/16 inch diameter or less) pieces of metal -- place aircraft back in service and check oil filter or screen at next scheduled oil change/oil filter replacement.
  2. 10 to 20 small (1/16 inch diameter or less) pieces of shiny flake-like, nonmagnetic, or 10 or fewer short hair-like pieces of magnetic material -- place engine back in service and again check oil filter or screen in 25 hours.
  3. 20 to 40 small pieces as in step b. -- place the aircraft back in service and check oil filter or screen at the next 10 hours.
  4. As in step b., but larger amount, such as 45-60 small pieces -- change filter or clean screen, drain oil, and refill. Run engine on ground for 20-30 minutes. Inspect filter/screen. If clean, fly aircraft for 1 to 2 hours and again inspect filter/screen. If clean, inspect filter/screen after 10 hours of flight time.
  5. NOTE: In items e. through j. below, the engine should be removed from service until the source of the metal is determined and corrective maintenance has been accomplished.

  6. Pieces of metal ranging in size of broken lead pencil point or greater. Remove suction (sump) screen to check for pieces of metal that may have fallen into the sump. In any event, ground aircraft and conduct investigation. A mixture of magnetic and nonmagnetic material in this case often times means valve or ring and piston failure. Removing bottom spark plugs usually reveals the offending cylinder.
  7. Nonmagnetic plating averaging approximately 1/16 inch in diameter; may have copperish tint. Quantity found -- 1/4 teaspoonful or more; ground aircraft and investigate.
  8. Same as in step b. but may be slightly larger in size and minus copperish tint. On direct drive engines, propeller action may be impaired. Ground aircraft and investigate.
  9. Nonmagnetic metal brass or copperish colored. Resembles coarse sand in consistency. Quantity of 1/4 teaspoonful or more -- ground aircraft and investigate.
  10. Anytime metal is found in the amount of 1/2 teaspoonful or more, it is justification for engine removal.
  11. If any single or several pieces of magnetic or nonmagnetic metal larger than previously mentioned are found, ground aircraft.

Incidentally, to the best of my knowledge, TCM has never published specific guidance on this subject, but Lycoming's advice strikes me as a pretty sensible approach for any piston aircraft engine, regardless of make or model.

Filter Contents


It seems pretty clear that the quantity of ferrous metal reported by the owner is small enough to be covered by paragraphs b. or c. of Lycoming SI-1492C. Ten or fewer short, hair-like pieces of magnetic material calls for flying and re-checking the oil filter in 25 hours. If more ferrous metal is found -- up to 40 short hair-like pieces -- then the re-check interval should be shortened to 10 hours.

Lycoming does not advise grounding the engine unless the filter contains large pieces of metal (the size of a broken lead pencil point or greater), or numerous small pieces totaling 1/4 to 1/2 teaspoonful or more. That's a lot of metal -- see the photo at right for what 1/4 teaspoonful of ferrous metal looks like.

Oil Analysis

What about the oil analysis report? Lycoming addresses this subject in SI-1492C as well.

For turbocharged engines (like the one in this owner's Cessna TR182), it says that the engine should be grounded for further investigation if iron exceeds 130 ppm or aluminum exceeds 40 ppm. For normally-aspirated engines, the corresponding thresholds are 100 ppm of iron and 30 ppm of aluminum.


Looking at the oil analysis report on the Cessna TR182 engine (shown at right), it's clear that neither of these thresholds have been reached yet. Notice also that this same engine had a similar iron spike two years ago, but recovered nicely. The moral of the story is that one high reading does not establish a trend.

This might be the start of a cam lobe and lifter coming apart, or it might be a transient anomaly that resolves itself. It won't take long to find out which it is, because cam and lifter destruction tends to proceed quite rapidly -- typically 50 to 100 hours from first symptoms to an obviously unairworthy engine.

If a cam lobe and lifter are coming apart, the next oil change will reveal sharply increased metal in the filter and higher iron in the oil analysis. If that happens, the owner will know with reasonable certainty that it's teardown time.

Is The Engine Safe To Fly?

Is it risky to fly this TR182 for another 25 or 50 hours? No, I don't think so. Although cam lobe destruction usually progresses fairly rapidly, it will not cause a catastrophic in-flight failure or do anything that would make the airplane fall out of the sky.

If the cam lobe deteriorates far enough, it could cause a small loss of power and perhaps a small increase in roughness. If the airplane has a digital engine monitor, the owner might notice a gradual decrease in EGT and CHT on one or two cylinders (because the intake valves are not opening quite as far as they should, so the cylinders can't "inhale" quite as well as they should.

If the next oil filter inspection and oil analysis indicate that things are getting worse, the owner can be fairly sure there's a cam problem, and he'd probably be wise to tear down the engine sooner rather than later.

But I certainly wouldn't panic and ground the airplane right now. The metal in the filter and the iron spike in the oil analysis could be a transient event that might resolve itself. It's happened before on this engine, and with a bit of luck it'll happen again.

See you next month.

Want to read more from Mike Busch? Check out the rest of his Savvy Aviator columns.

Exclusive Video: Our Ride-Along with Aerobatic Pilots Michael Mancuso and Matt Chapman at Sun 'n Fun 2007

Recommend a Video | VOTW Archive

AVweb (and you) ride along with Michael Mancuso as he flies his precision formation routine with Matt Chapman. The video includes narration by Mancuso, who briefed us after the show.

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If that doesn't work, click here to download the video directly.

To take a ride with Mancuso (and without dramamine), see also Glenn Pew's article, "The Day I Saw the Light."

Would you like to see more original video content from AVweb? Do you an idea that would make a great video? Let us know.

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AVweb Audio News -- Are You Listening back to top 

AVweb Audio News

AVweb posts audio news on Mondays, plus a new in-depth interview each Friday. In last Friday's podcast, you'll hear an interview with Air Journey's Thierry Pouille. And AVweb's podcast index includes interviews with Epic Aircraft's Rick Schrameck; Cessna's Jack Pelton; Embraer's Ernest Edwards; LAMA's Dan Johnson; Piper's Jim Bass; DayJet's Ed Iacobucci; AOPA's Andrew Cebula; Hawker Beechcraft's Jim Schuster; Avfuel's Craig Sincock; Comp Air's Ron Lueck; and VistaNav's Jeff Simon. In Monday's special podcast, hear Kay Crites of the Commemorative Air Force. Remember: In AVweb's podcasts, you'll hear things you won't find anywhere else.

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Question Of The Week back to top 

Question of the Week: AirVenture 2007 R.S.V.P.s, Please

This Week's Question | Previous Week's Answers


Last week, we asked AVweb readers if they've noticed any change (good or bad) in the quality of weather briefings since Lockheed Martin's consolidation of AFSS services has gained traction.

A definite majority of those who participated in our poll (59%) said briefings have gotten worse since consolidation began, while only 6% reported their experiences as better.

For complete breakdown of responses, click here.


Attendance seemed to be down this year at Sun 'n Fun, so we'd like to know about your plans for EAA AirVenture. Are you planning on attending the annual air festival in Oshkosh in July?

Click here to answer.

Have an idea for a new "Question of the Week"? Send your suggestions to .

This address is only for suggested "QOTW" questions, and not for "QOTW" answers or comments.
Use this form to send "QOTW" comments to our AVmail Editor.

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FBO Of The Week back to top 

FBO Of The Week: St. Thomas Municipal Airport

Nominate an FBO | Rules | Tips | Questions | Winning FBOs

AVweb's "FBO of the Week" ribbon goes to St. Thomas Municipal Airport at CYQS in St. Thomas, Ontario, Canada.

AVweb reader C. Moon says he visited the FBO twice and was impressed both times.

"I've visited St. Thomas, Ontario, twice, and both times I've received first-class service -- in one case beyond expectation. The first time the starter gear on my Cardinal sheared, grounding my copilot and I late on a Sunday afternoon. The airport was deserted, save for the manager. Rather than have me call my wife to make a 100-mile pickup journey, he pulled a 172 out of the hangar and had us on the way immediately. No fuss, no paperwork, no check ride. And no 100-mile car ride back with a less-than-pleased spouse. Last Sunday I paid a return visit. The crew car was made available to my wife and I for the entire afternoon to tour the area. No charge and no paperwork, just a friendly greeting and hand over of the keys. We will return again. This airport operates as a model of how one dreams what personal flying can be."

Keep those nominations coming. For complete contest rules, click here.

AVweb is actively seeking out the best FBOs in the country and another one, submitted by you, will be spotlighted here next Monday!

Pictures Of The Week back to top 

Picture of the Week: AVweb's Flying Photography Showcase

Submit a Photo | Rules | Tips | Questions | Past Winners

Each week, we go through dozens (and sometimes hundreds) of reader-submitted photos and pick the very best to share with you on Thursday mornings.  The top photos are featured on AVweb's home page, and one photo that stands above the others is awarded an AVweb baseball cap as our "Picture of the Week."  Want to see your photo on AVweb.com?  Click here to submit it to our weekly contest.


The volume of "POTW" submissions that arrive in our box each week continues to fluctuate as the weather warms up here in the U.S. — but, by happy coincidence, every time the number of photos drops off, the quality goes through the roof.  This week was no exception, with only 54 photos finding their way to us.  Thankfully, there's no shortage of oohs and ahs in this week's batch, starting with a fantastic (if unsettling) weather photo from Philip Clifton of Raleigh, North Carolina.  (Do yourself a favor and click through to view Philip's photo full-size — there was just too much majesty to fit into our tiny little "winner" box here.)

medium | large

Used with permission of Philip Andrew Clifton

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Used with permission of Henry Morgan

Nature Still Holds Air Superiority

Philip Clifton of Raleigh, North Carolina took our breath away with this reminder that yes, we are small and fragile in the face of the weather.  As you may have guessed, lots of pilots were grounded this Friday evening, but, Philip writes, "as a consolation, I had the opportunity to capture some fine aircraft with lightning in the background."

And because we can never pass up an opportunity to point out similar themes, check out the photo to the right, taken by Henry Morgan of Ranger, Texas on a stormy night over Abilene's ABI.


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copyright © Jay Honeck
Used with permission


Jay Honeck of Iowa City, Iowa woke up to the sounds of an interesting formation at this year's Sun' n Fun.  "As you can see, these crazy guys were doing quite a formation — with a DC-3? — at, what, 60' AGL? It really woke us up!"

Hey, we know that DC-3 — it's the Herpa plan from Incredible Adventures, who were kind enough to give us a ride during the show!


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copyright © U.S. Air Force/NASA
Used with permission of World Space Expo

USAF Thunderbirds Over NASA

The fabulous Thunderbirds fly over Kennedy Space Center as part of the preparation for NASA's World Space Expo in November.  According to WSE's Ian Murphy, this is the Thunderbirds first Kennedy fly-over in 31 years.

Photo by U.S. Air Force Technical Sgt. Justin D. Pyle.


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Used with permission of John Sperling

Sunset at 7G8

Tim Connor of Kirtland, Ohio flies us out this week, in one of the most amazing landscape photos we've received in years.

Do you enjoy spotting the themes as much as we do?  "This was taken at sunset just after a good thunderstorm passed through the area," according to Tim.

Hankering for more pictures?  Point your favorite web browser at AVweb's home page and you'll see lots more photos that we just couldn't fit in here!

To enter next week's contest, click here.

A quick note for submitters:  If you've got several photos that you feel are "POTW" material, your best bet is to submit them one-a-week!  That gives your photos a greater chance of seeing print on AVweb, and it makes the selection process a little easier on us, too.  ;)

A Reminder About Copyrights: Please take a moment to consider the source of your image before submitting to our "Picture of the Week" contest. If you did not take the photo yourself, ask yourself if you are indeed authorized to release publication rights to AVweb. If you're uncertain, consult the POTW Rules or send us an e-mail.

Names Behind The News back to top 

Meet the AVwebFlash Team

AVwebFlash is a twice-weekly summary of the latest news, articles, products, features, and events featured on AVweb, the internet's aviation magazine and news service.

Today's issue was written by Contributing Editors Mary Grady (bio) and Glenn Pew (bio) and Editor In Chief Chad Trautvetter.

Click here to send a letter to the editor. (Please let us know if your letter is not intended for publication.)

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