Remember the Air Force’s accident report on the December 2010 F-22 crash in Alaska, where the service basically blamed the pilot for not switching on his emergency oxygen system system in time to avoid a crash?
The report said the airman accidentally pointed his jet toward the ground when he reached for the poorly-placed backup oxygen system handle after his jet’s main oxygen system shut down (something that led his widow to sue F-22-maker Lockheed Martin and its subcontractors.). It went on to infer that if he had reached for the handle and realized he was in a dive sooner, he might still be alive despite the poor placement of the switch.
Well, that emergency oxygen system handle was so poorly designed that the Air Force is retrofitting F-22s with a new emergency oxygen system handle.
From an Air Force announcement:
The modification is to the F-22’s Emergency Oxygen System handle, which makes it easier for the pilot to access. Det 1 model makers Floyd Slinker and Terry Waugh designed it.
Approximately 200 handles, which cost $47 apiece to manufacture, have been delivered, including spares. The handles have already been fielded at the 3rd Wing at Joint Base Elmendorf-Richardson in Alaska.
“The fact that this detachment was able to do this quickly, cheaply and effectively, and get it into the hands of our aircrews shows them the Air Force is involved and working to get the F-22 recommendations in place as quickly as possible,” Lyon said. “I wanted to come by today and thank the folks who came up with the idea, designed it, programmed it, machined it, mailed it, paid for it, and got it out there in a very rapid manner. I’m very proud of the unit for what they’ve done.”
The handle was one of the F-22 components identified by a Scientific Advisory Board, which studied safety issues on the jet, as one of the critical items to be fixed. The SAB, an independent board working under the direction of the Air Force, investigated the oxygen systems in the jet after months of problems with the main and backup systems.
“The handle provides the pilot much easier access to the handle, provides an easier grip, especially when wearing cold weather gear, and allows the pilot to apply more leverage to the activation ring,” said Lt. Col. Beachel Curtis, Det 1 commander.
{ 85 comments… read them below or add one }
Oh yeah, this was obviously pilot error. It is a pure coincidence that they're redesigning this handle. Nothing to see here. Go watch a basketball game or something.
I feel bad for the widow here. I would be frigging livid right now. The politicization of the F-22 helps no one, and does little to discern the truth of its problems. This plane is going to be the backbone of our air superiority force for decades. Covering up issues by throwing the pilot under the bus just makes it more difficult to get it up to the operational level we need it to be at. It is good that they are addressing the issue, but it seems obvious they have sacrificed the pilot's reputation to avoid painful public attention.
So to summarize, if I have the story correct, pilot is flying along, when oxygen either cuts out or become tainted, lower supply, whatever. He quickly gropes around to find the handle/switch to go to back up, which is located in such an out of the way place that he takes a while to get it right, knocking the nose of the plane into a crash heading. He realizes too late, ends up dead with a 100+ million dollar aircraft destroyed. Problem? Pilot error.
Do I have that right?
There was some drama associated with F-16s and widows (Janet Harduvel)
http://federal-circuits.vlex.com/vid/harduvel-chr…
"The Supreme Court's adoption of the government contractor defense recognizes that one of these risks is the operation of equipment in which safety concerns have been balanced against cost and performance. With respect to consumer goods, state tort law may hold manufacturers liable where such a balance is found unreasonable. In the sensitive area of federal military procurement, however, the balance is not one for state tort law to strike. Although the defense may sometimes seem harsh in its operation, it is a necessary consequence of the incompatibility of modern products liability law and the exigencies of national defense.
We conclude that plaintiff's claims are subject to the government contractor defense, and that the record before us establishes the conditions of the defense. "
Actually, I found out that more than just the handle was fixed. It seems this is the only part they are owning up to publicly, and probably they're only owning up to that because it is too hard to hide. It is very sad that the pilot has become the scapegoat for every airplane crash. We claim to (and no doubt do) have the best pilots in the world, then we throw them under the bus the minute something goes wrong. That's not how a country continues to have the best pilots in the world.
So where are those pieces of crap that normally show up on these boards to tell us how it must have been pilot error now? I'm sure we can count on them to show up the next time an airplane crashes.
we are paying top dollars for this cutting edge jet and we cant design a goddamn handle?
The handle is similar in design to that of other American aircraft. Food for thought.
The problem is OBOGS, with the ECS light on the pilot had no way of getting any oxygen other than his emergency oxygen bottle. Never had this problem when we had a LOX system in the F-4 and F-15. The "green apple" was never easy to reach, you had to practice. Combine night time, single seat, cold weather gear, and the panic caused by not being able to breathe and you can see a disaster coming. The "system" put the pilot into a box he couldn't easily get out of!
Perhaps it's a testament to the reliability of legacy LOX that this didn't happen any sooner.
I disagree with calling it an OBOGS problem. F-16's have OBOGS and F-15E's have MSOGS. They are both reliable systems in those aircraft. I believe there may be an underlying problems of 5th gen aircraft with OBOGS that we haven't discovered yet (i.e. somehow contaminates are infiltrating the ECS/OBOGS system, perhaps PAO from the TMS).
2 wrongs dont make a right
Cut corners cost lives.
I do not believe this was a case of cutting corners, William. I am convinced this was just straight up incompetence at work. The problem is, how do you get the contractors to fix incompetence when it pays better than competence?
I'm not sure that it's incompetence so much as poor ergonomics by the engineers. They either didn't have or ignored the advice of an experienced when designing the cokpit layout. Engineers tend to have a habit of ignoring usability/accessibility when designing things and forgetting about the end user. Whoever decided to put the emergency O2 lever where it was probably never really thought or had a realistic idea of how it might to access it in a true emergency, they probably figured it was in a decent spot, nice and out of the way yet accessible except that they probably only tested it under ideal conditions.
Poor ergonomics don't happen in a 25 year development program because someone had a bad weekend. In the case of the F-22, there is a group of 20-30 people dedicated to the physical layout of the coc kpit. There's probably 4 times as many who write software for the various displays and controls. Then there is the fact that the article itself says, "the handle was ONE OF the F-22 components identified…to be fixed." Obviously you don't know what the rest of those components are, nor do you know how they are being fixed. But why should the facts get in the way of a good whitewash? Obviously the Accident Investigation Board didn't feel constrained by any facts when it pinned all the blame for the crash on the pilot.
Dfens, you are right. On the competence hurdle, I think the US is going to have an increasingly hard time to overcome because there will be less money and fewer competent engineers. The vast majority of students in good engineering schools and PhD programs are foreign born or of foreign ethnicity. They are unlikely to be hired for top secret projects, nor are they inclined to apply given the scrutiny, mistrust, and danger of scapegoating they will be facing on the job. Besides, as funds start to dwindle, pay packages will begin to shrink. As China begin to offer million-dollar class job offers for competent engineers and scientists on the international market, brain drain in the US will likely be another problem on the horizon.
William Crook just wants to spend more money. If that means killing pilot he's on record in multiple forums not caring less.
Standard itfunk/oblat post. Lots of claims, no facts, no quotes, no signs of intelligence.
Sorry but I have seen a lot of claims from you, but no facts, no links, no support, and no signs of common sense, much less intelligence. Your views on 9-11 and the insulting 9-11 Commission Report would be a good illustration.
Nobody with good common sense, objectivity, and sound basic knowledge in physics can possibly find the 9-11 Commission Report remotely believable. I don't know where or how you manage to muster so much false confidence in yourself. But make no mistakes, the biggest enemy of the American people is the US government and the criminal syndicate controlling it from behind the scene.
You will be a victim of the criminal US government in due time, as will many others like you. And it will be too late when you finally realize how badly you've been fooled by the govt and its propaganda machines.
I don't know why some people refuse to accept the reality that there are organizations that wish to see this country destroyed. These Islamofacists didn't just appear in 2001, they have motivation, history, and backing decades old. But no, you'd rather believe we dressed up a 3,000 lb cruise missile to look like a 190,000 lb airliner as part of what? Some absurd plot to waste a decade trying to rebuild some 3rd world wasteland?
Lets see if the new system wont end up making the same problems for pilots.
little things
This bodes pretty well for the widow's law suit.
I don't think this is a case of cutting corners… I think this is a case of failed Human Machine Interface and cockpit layout. I.e the requirements drove design contrary to the requirements intent.
Wouldn’t a non working primary oxygen system be cutting corners? They fielded the plane knowing full well something was wrong with it
All aircraft are rarely fielded with 100% things working at the start of a production run. In particular military aircraft, they work on "envelopes", where the aircraft is slowly permitted to fly bigger envelopes.
Welcome to reality. This is not the car industry where you build 1000s of models in the first year. You get something wrong, you still try to get it to work if possible. Failure, even of one aircraft component which results in an aircraft grounded, costs HUGE amounts of money.
Ok that is a decent point.
But the primary oxygen system doesn’t work, pilots need to breath.
Also production is officially over and the problem still isn’t fixed and due to this problem the planes have spent a large portion of time grounded
Slander
I must have been sleeping in grad school but the first thing I thought of was "subsequent remedial measures"; that is, can the widow use this as proof that the design was flawed and contributed to her husband's death. Well, according to the Federal Rules of Civil Procedure – Rule 407, it appears her legal team cannot:
"…When, after an event, measures are taken which, if taken previously, would have made the event less likely to occur, evidence of the subsequent measures is not admissible to prove negligence or culpable conduct in connection with the event. This rule does not require the exclusion of evidence of subsequent measures when offered for another purpose, such as proving ownership, control, or feasibility of precautionary measures, if controverted, or impeachment…"
Yes, you must have been sleeping in LAW school (NOT grad school, law is merely vocational training).
Rules of Evidence and Rules of Civil Procedure are entirely different things.
And just what makes you think you can judge the legal merits of a case based on spotty reports from the media???
Not sure why you feel the need to jump down my throat. (1) No it wasn't LAW school, it was grad school. Guess you're not aware that someone can take a legal course outside of law school. In my case, I've taken several in both undergrad (e.g. Constitutional Law – Political Science, BA) and grad (e.g. Real Estate Law, Legal Aspects of Entrepreneurship, MBA). (2) As I am not a lawyer, I mixed up Evidence and Procedure – the number is still right. (3) I prefaced the whole thing by saying I must have been sleeping, as in, I just had a thought when reading the article and wasn't attempting to judge anything. I never said I was a lawyer. Now go get your shoeshine box.
LOL!!! yes, one can take a legal course without being in school. Despite your long list of courses taken, you seem to be more familiar with shoeshine box than law. You are still getting it wrong. But then, as some experienced judges have commented over the years, around 85% of licensed lawyers in the US are incompetent.
You seem to be more interested in degrees / titles (to impress) than actual learning and real knowledge.
Let's work on why he had to use the emergency oxygen in the first place.
Still not solved. But your right. Till then, the F-22 is not ready for prime time.
Random question but what you’re of Oxygen system does the F35 have
OBOGS as well.
Any idea if it is working properly on the F35?
And thanks for being able to understand that, didn’t catch the autocorrect error
Considering how little flight time the -35's have its hard to see.
Sadly that was what I figured
Sigh
I would have thought if there was a problem "the system" would have figured it out. made the switch and informed the pilot and the ground engineers all at once…
It would be tough if the pilot was engaged in some other activity, you can't just ask the bad guys to wait for a few moments while you look for some more air ???
hmmm should my uncle have sued the army when some poor maintainer filled his UH-1's transmission topside with hydraulic fluid instead of transmission fluid in RVN. Thankfully he caught it during pre-flight. Machines are complicated, pilots are paid to take risks and sometimes things go wrong period. Study the failures and correct the procedure looks like that is what the AF is doing.
I mean no disrespect to your uncle but if he had died in the UH-1 crash would you not have been tempted at the very least, to sue the manufacturer? I think people are too quick to cry "whitewash" but I'd say that she was justified in this case due to a fundamental error in the Raptor's design, meaning that it directly contributed to her husband's death.
This would be more like your uncle taking off in said UH-1, the transmission goes out, and then while he tries to auto rotate to a landing, he has to reach under the seat and root around between his legs to cut fuel, or do whatever else hello pilots have to do in an emergency.
The issue people have is not so much that the machine is imperfect, but that the blame has been placed on the pilot rather than owning up to the flaw in the first place.
That would be an error of the draftee back in the day, and the Army claims sovereign immunity in such cases.
That said, that is why you have pre-flight checks; and it's good that he caught it.
Does anybody know how did they fix this whole mess when it was occurring to the F/A-18 fleet?
Open ended question: What are they doing currently to fix the core issue, that the o2 bleeds? Handles are great, but this is like building a more ergonomic steering wheel when your power-steering pump fails. Important, especially if your steering wheel is under the seat in the form of a ring, but….
Pilot error is now an acronym for Air Force Redesigns F-22 Emergency Oxygen Handles.
Tell it to the wife and family, cheaparses.
The F-35 takes the whole contractors attitude of "every crash is revenue positive" to the next level. An aircraft too dangerous to train on is being relentlessly pushed forward by Lockheed with disregard for the deaths that will result.
What can't a single "star" in any service own up to anything? All he blame get's pushed downward.
In private industry, if there's a big screw up the CEO gets fired
In the Navy ship captains get fired left and right for anything and everything. But the stars never get fired for POOR leadership. I guess once you put a star on your shoulder you are now a 'made' man (or woman) and therefore is untouchable.
Not necessarily. BG Karpinski got demoted and dumped from the service after Abu Ghraib. However military higher ups, political entities and Other Government Agency got away with it.
This lesson was actually first learned during the early years of WWII. The flap control lever and the landing gear lever on a particular aircraft were next to each other down by the side of the pilot's seat, and both had the same design, a round knob on the end of a short lever. Pull the wrong lever after you've landed and you dropped the aircraft on it's belly. The quick fix was to put a square knob on one of the levers, later the location was changed so that both levers were not next to each other.
Thinking about this I don't know if saying corners were cut is correct. Rather I think this was an ergonomics issue that got overlooked or was a simple mistake. Call it incompetence if you wish, but some "minor" ergonomic factors are overlooked on any new aircraft, and there are many examples from all eras of aviation of this. In an ideal world pilots would have noticed the bad placement and this would have been corrected earlier.
This is an improvement that should be incorporated anyway, but the real problem with the OBOGS still needs to be fixed. Improving the backup system isn't a true solution.
Blaming the pilot for this mistake was quite simply wrong. Yes he may have crashed while trying to activate the backup system, but OBOGS shouldn't have malfunctioned to begin with. For example, if an aircraft is lost in a crash landing, does one blame the pilot for "not doing it right" or blame what forced him to crash land? It should be the latter.
The F-22 is and should be important to the USAF and our military interest. But that doesn't excuse leadership blaming the pilot to avoid bad press. The media will attack any program regardless of what goes wrong or right, we've seen that since the '80s. Admit that there was a problem with the design, but when they try to claim it somehow proves the whole design is rotten, correct them.
It would be a simple ergonomics issue if the handle were all that needed to be changed on the F-22. More than just that handle was changed.
The error, as I see it is blaming the pilot for a serious design flaw, just to cover their butts.
I don't know why no one is talking about this, but FYI: All ACES-II seats have the emergency O2 ring in the same location. Yes, essentially the entire US Air Force has the same design for emergency O2 activation. There are some important detail differences in the area for different jets, but the location and the ring itself are identical, and have been this way for at least 30 years. it is a dangerous design? Why didn't we know a little earlier?
Other people have been able to reach the emergency oxygen just fine. It is unfortunate that this guy, after all of that training, couldn't find it when he needed it. Besides, all he had to do was drop his mask… he could have breathed the air in the cockpit during a controlled descent.
You have no clue what you are talking about. He was above 50K feet when the aircraft shut off all bleed air. OBOGS and the ECS immediately died. No O2 in the mask and the cockpit (which was probably in the low 20's, fighters don't pressurize to sea level) started to de-pressurize very quickly. There was rapidly no air to breathe.TUC at 50K is 6-9 seconds. At 35K it's 30-60 seconds. That can be cut in half by rapid depressurization.
and to call what he had a "controlled descent" would be laughable… educate yourself before you open your mouth and insert your foot
very nice and informative post.
Thanks for sharing.
Please consider reading the series of anecdotes here: http://www.public.navy.mil/navsafecen/Documents/m…
before making rash judgements about criminal intent.
The bleed air oxygen generating system is not reliable and should be replaced with the LOX bottle system of the F-15.
Seems the LOX tanks will degrade the stealth of the airframe, but there has to be
a way to coat the tanks or refelct thet energy?
Letting the pilots figure out they have hypoxia and react to it is not logical.
Am I missing something or avethey still not Coe up with a root cause that would require the pilot to have to activate the emergency system? I don't bame these guys for saying hell no. I'd do the same same.
The LOX tanks would just need a properly shaped cover not to mess up the internal cockpit's RCS.
My guess is there's some material, part, or chemical treatment in the oxygen generating system and air processing loop that is outgassing something toxic, possibly in response to normal operation at any altitude, possibly as a result of exposure to low atmospheric pressures. I don't think it's a matter of not enough oxygen pressure being delivered into the pilot's lungs.
F-22 is a great aircraft. F-23 was probably better and less B.S. promoting it. But the F-22 people appear to have had more political connection than Northrop.
They had juice from the F-117 project?
Some kid's going to read this and wonder why some moron wrote an anti-spam and anti-swear filter that put four asterisks in a completely normal word… on a defense tech website. Puritanical idiocy.
wow, lots of guessing from the gallery.
handle is an ergo improvement to the ring. ring is standard for all ACES2.
ACES2 and OBOGS are not unique to F22,
F15 incorporates LOX or OBOGS. series and block driven.
LOX and stealth,,, not sure where to start but dont have the time.
chem treatment? try sieve beds.
air processing loop? try surge regulated distribution plenum – one way flow.
How do you aquire an F-22?
Buy an acre of land, then wait.
Once again, lots of claims, no facts, no support, no evidence, no signs of basic knowledge, no signs of common sense …
You blame me for not taking you seriously?
Typically, companies like Boeing and Lockheed lose 80% of college new hires within 2 years. I don' t know if that number has been affected by the current economic conditions, but it has held pretty steady over the last couple of decades. You can see it in these kid's eyes when they get here. It's like falling through a looking glass. Right is wrong, good is bad, less is more. Once they realize that they are not being hazed and that there is no fixing what is wrong, they start pumping out resumes by the hundreds. That's why the mean age of an aerospace engineer is mid-50's and climbing.
"Once again, lots of claims, no facts, no support, no evidence, no signs of basic knowledge, no signs of common sense…."
Pot, meet kettle.
Regards & all,
Thomas L. Nielsen
Luxembourg
I've got to agree with William on this. If someone is telling you that you have more to fear from your own government than from Islamic terrorists or foreign governments, they are not your friend. If I did not believe that our nation was full of good people, why would I bother to complain about how bad things have gotten in the defense industry? If everyone is bad, there's no reason to complain. If the system has slid into disrepair because people had better things to do that monitor the government's procurement rules, then a little sunlight will fix the problem.
The BGM-109 Tomahawk weighs 3500 lbs and has a 1000 lb conventional warhead with three fuse options: contact (where it explodes on contact with target), penetration (where it basicly performs like a bunker buster), and a new option, air burst (where it explodes in the air over a target, the MOAB bomb uses this feature). A BGM-109 would must likely use the penetration setting when trying to destroy a building. In regards to the damage done on the Pentagon, there would be a crater left in the building. With the Twin Towers, the area above the impact site would collapse with debris being throw out further then the building's footprint most likely damaging the second before the next one hit. In order to bring down a building the size of the Twin Towers, a BGM-109 MUST hit either underneath them, the ground floor, or the lower levels. And trying to have the weapon be delivered thru the roof wouldn't work because it will lose momentum from all the floors it would have to go thru.
hi kettle
My suspicion of the official 9-11 story had started in the afternoon of that very day .. when building 7 collapsed in perfect controlled demolition mode, with hardly any news anchor saying anything about it right then, the following day, the day after that …
For over 6 months, I could find nothing in detailed reporting, let alone explanation from the mainstream media. By then perceptive observers on the internet had already been writing about the ridiculous Boeing 757 crash at the Pentagon.
But the collapse of building 7 is enlightening – the type of federal agencies housed there, the important documents and records stored inside, the kind of security and access control maintained at the site means demolition charges had been placed in the building WELL BEFORE 9-11. You can't do it in a few hours. To effect that kind of even, controlled collapse, any claim about fire is pure BS. The only remaining question is … who had gained access to the building and installed those demolition charges. They must have been US or allied agents (CIA, MI6, MOSSAD and the likes). People living in caves in Afghanistan can't make thermite or thermate using primitive cookwares, nor can they gain prolonged access to building 7 and the twin towers. In fact, the 9-11 Commission report has utterly failed to account for the collapse. That's the smoking gun for even casual observers.
When it comes to the issue of Israel vs Palestine, US media has almost never reported war crimes committed by Israel against civilians in the illegally occupied territories. That's why most Americans don't have a clue about the savage oppression Israel has been inflicting on the Palestinian population. They don't understand that the Arabs hate the US because it backs and arms Israel. They also don't understand that the US backs Israel because there is a very, very powerful Jewish lobby on Capitol Hill.
It's hard to tell whether the Government is our ally or not, I believe that we as a population elect our own corrupt government, so really it's the human tendencies that ruin us, but we're still a great world power. As for 9/11, they were built to withstand multiple impacts from private aircraft, not passenger jets. The structural damage of an airliner going almost entirely through the building was more than either tower could take.
I, on the other hand, knew what was going to happen to those building the minute I recovered from the shock of what happened. All I could do is sit there and hope they got as many people out as possible. A lot of what engineers and scientists do is indistiguishable from magic to people who don't work in our particular fields. I am confident our nation and government are not evil. They can act stupidly sometimes, usually when influenced by money, but they are basically decent and can be influenced by reasonable arguements.
I share your confidence in the people as long as they are not misled by the government (else, see Nazi Germany, or the USSR under Stalin). I don't share your confidence in the US government – while it's true that not all US government officials are evil, it's also demonstrably true that there are evil elements in the US government. There is nothing unusual about that. I dare say that every country has its share of evil government officials, just as I dare say that every country has its share of evil human beings.
The Twin Towers were designed to withstand multiple plane hits. No steel frame buildings had ever collapsed because of fire before 9-11. Jet fuel simply doesn't burn hot enough to weaken the steel beams of skyscrapers, much less melt them. There have been steel frame high rises on much larger fire for over 10 times longer than an hour. None of them have collapsed. Earthquakes can cause buildings to catch fire and collapse BUT you never see collapses at free fall speed, molten iron, with exploding fine dusts, and pulverized furniture.
The 9-11 Commission Report was prepared using almost the same script for the Warren Commission Report on JFK's assassination – outright, in-your-face lies.
There is a good reason why professional societies of architects, civil engineers, mechanical, electrical engineers and chemical engineers refuse to believe the 9-11 Commission Report / the official story and petition the government to reopen the WTC investigation: the lies don't even pass the smell test, and can't possibly withstand true scientific scrutiny.
And there is a good reason why the government is refusing to comply: doing so would be tantamount to committing suicide.
While it is true that people can be mislead, usually it takes more extreme circumstances than those surrounding 9/11 to pull it off. For instance, the rise of the Nazi party in Germany was preceded by the horrible treaty of Versailles that decimated the German economy. Also, you have to realize that responsible engineers are somewhat limited in what they can discuss of the twin towers collapse because they do not want to hand terrorists the knowledge required to make the same thing happen again. Would you want someone to post on the internet, "oh yeah, you could make the same thing happen in building X if you just put 3 lbs of explosives here, 2 lbs there and there, and 4 lbs right here?" I mean, imagine he were talking about the building you work in every day.
quote: "they were built to withstand multiple impacts from private aircraft, not passenger jets."
The Twin Tower were designed to withstand impacts from passenger jets. In fact, strong wind exerts far more force on the upper section of the towers than a passenger jet.
I recommend that you watch the linked videos or read through some of the well-written rebuttals to 9-11 Commission report on the web. To me the lies spewed by the Commission is as blatant and insulting as the Warren Commission report on JFK's assassination.
There is NO WAY steel frame buildings can be destroyed by a two-hour fire from jet fuel. If you watched the live coverage you should have heard the numerous explosions. The damning visual evidence is pretty obvious in the free fall speed (no resistance at all from the lower section), the incredible volume of fine dust and smoke engulfing the entire WTC and beyond, and the vertical collapse onto their own footprint.
9-11 was an inside. 100% certainty for me. The official cover-up story is an insult to people's intelligence. But I'm not surprised that most Americans have been fooled by the lies.
watch this:
http://www.youtube.com/watch?v=MvyBY8d554I&fe…
edit: last parag. … 9-11 was an inside JOB. …
While the Treaty of Versailles had very punishing terms, Germany did not actually fulfil its obligations in any meaningful way by wildly inflating its currency.
As for 9-11, we don't need to get into the details of building designs. The forensic evidence on the ground is more than enough to make the case for controlled demolition.
I suggest you go through the linked videos first. This is a not a complex case to solve.
There is a good reason why so many American architects and civil engineers are among those petitioning the government to reopen the investigation.
there are many good videos like the one below. It pays to watch them. They are far more informative and educational than "news" on FOX, CNN, ABC etc
http://www.youtube.com/watch?v=Pjmktbt-F_Q&fe…
the timed serial detonations of demolition charges should be quite obvious (at least for me).
buildings that collapse without the assistance of explosives (like in an earthquake) simply don't have this kind of smoke and dust pushing out at tremendous speed. You don't find pulverized concrete floors, and furniture etc in a "natural" collapse. And you never see them in free fall speed.
Your gas range / oven burns hotter than the fire in the twin towers because it's controlled burn, whereas the ones on 9-11 were incomplete combustion (oxygen starved), hence the dark smoke. Have you ever seen your steel cookware softened or deformed on a gas stove?
But you can see molten metal pouring down. Why? Two possible explanation: (1) the plane was carrying powerful incendiaries such as thermite or thermate, or (2) the incendiaries had been placed there before the plane hit. Either way, that couldn't possibly have been the work of some so-called "Islamic terrorists"
I've heard quite a few similar accounts. Looks like ASA will be facing serious "brain damage" in the coming years, too.
edit: meant to say "NASA will be …