Juan, I think you answered why a plane that is at the "halfway" point might have to carry more fuel to drop to a lower altitude and continue on, but I don't think you specifically answered why that would make an impact; does the crew have the ability to exchange the air in the cabin via another system than the compressed air inputs from the engines?
I believe that I only fully comprehend about 60%+ of the technical explanations BUT that does not diminish the great pleasure I get from ‘learning’ and sharing your totally fascinating vlogs; keep up the great work. Thank you! 👍🙏🏼
I really like these little emergency event debriefings/case studies. As an airline pilot, it freshens my education on the situation being discussed and better prepares me in the event that I ever have to deal with something like this as a crew member up front. These are kind of like CBTs except they are much more entertaining and don't put me to sleep.
Exposure to contaminated air wrecked my nervous system and finished my aviation career very prematurely. If you look up the effects of burning jet oil it doesn't for make good reading. Thanks Juan for an in-dept report.
Thank You for all your excellent content! It takes a smart person to understand such a technical subject; and an even smarter person to explain it in a straightforward fashion...
Juan, You are one great source of valuable knowledge. Thanks so much for sharing in terms the layperson can understand. We are praying that you get back in the air soon. Passengers could not have a better, more competent pilot.
As always a great informative video. I worked in the aviation industry years ago and it’s frustrating to see the inaccuracy of news programming. Even from their experts. Glad you’re on the mend and keep up the good work.
Juan, I love your casual but concise way of explaining things. I spent 30 years working on aircraft electrical systems - both in the USAF and on production lines at Lockheed, Hiller, Lear and others. Not that I ever could THINK I know it all, I always learn something from your videos. Thanks for taking the time to do these bits with your insights and expertise. Keep it coming.
I remember the days of airliners having a smoking section. Seems like I'd always be one row removed from this section being a non smoker. Smoke in the cabin never seemed to be an issue in those days. Thank you for another very informative report.
According to Hawaiian Airlines statement on their Facebook, the plane was landed on 4R and an evacuation was carried out in 30 seconds. No one was seen with baggage when exiting the plane. Kudos to the crew and passengers for actually doing what was taught! Just fyi standard commercial landing routes for HNL in the normal trade winds would be to fly south of the island, to the West end of the island and turn back landing on 8L. This flight had an expedited approach and landed on a runway 4R which is normally used for cargo and civil aviation operations. Happened to take my first flight lesson in a Cessna 152 from that runway many many years ago :)
Juan-fantastic explanation once again. Just plain fantastic. I have never heard a more clear and concise explanation ; and it boils down to the fact that you not only know electro-mechanically what makes these "things" fly but what to do when things go wrong. A master mechanic and a master pilot. You do the industry a great service.
Juan. I swear ...you are the best reporter/ news round. No bull.Just the facts and sometimes well informed opinion. I tell everybody to go watch the blancoliero channel. It’s the best news around. Very refreshing and trustworthy. I know you’ll hit 100 k Plus and way beyond subs soon! Thank you for your great work.
Juan, That was a VERY enlightening explanation of the many systems we as laymen have no idea of how those systems work, and the extensive training you have to have beyond the silly stuff like just flying a jumbo jet LOL. I having been a combat medic thought I had a lot of training and what I did learn was KEEP your head calm ,clear and work your medical checklist in your head in a stressful situation. My hat goes off to you pilots keeping us a safe as possible when flying !!!!!!!!!
Love you, love your show. Heal quickly, heal well. Dirty little secret - I look at google maps a lot at work, and now every time I see a dam, I look for the spillway
Wow! Amazing video, so much useful information 👌. Thanks a lot Juan for taking the time to make all these valuable videos. Wishing you complete recovery.
Another worst-case scenario: fire aboard a submerged submarine transiting through the Straits of Gibraltar. It calls for an emergency ascent into an unknown number of surface craft not expecting a submarine to pop up in front of them. Another great report, Ron. Keep 'em coming!
787 went back to 1950 technology with turbo compressors and refrigeration units like the DC8 and 707. Tried and true. Even the Dart engines had Roots blowers instead of bleed air. Great reporting.
I really appreciate the time, effort and detail that has gone into each and every one of your videos. I am a private pilot and I find your videos super educational. Thank you so much for these educational, informative and interesting videos. Keep up the great work, but please find time to relax and take care too.
Again a brilliant explanation for us non aviators. You are the best. Thanks Man. I just took my first flight to Spain from Dallas to Madrid last June and watching your channel helped me me feel a lot more comfortable about air travel. Knowing that we have experienced pilots like yourself.
Juan, I am a pilot - but Dude, your knowledge is amazing. As always, You are so informative - it's ridiculous.... Always watch, and always a "thumbs up"....
We used to use Mobil Jet oil 2 in Allison industrial engines, I can verify that stuff flashes to smoke with a terrible chemical acrid smell, scary enough in an industrial enclosure on the ground, in flight it would be heart stopping. As tough as Jet engines are something as simple as a tiny bit of back pressure on a labyrinth seal drain line can cause massive issues . Juan I learn more from you in 20 minutes then days of watching news services.
This is the best stop in aviation news on YT, quality assessment of the news as it reported and quality information relating to the unreported, perfect balance to help those less technical to stay informed in all matters relating to aviation. I hope you get back in the sky real soon, thankyou for your efforts.
Thanks for all the aviation updates Juan! Hope you are feeling well!! All the regulars here are always thinking about you and the family. Hope everyone is doing well!
Great video Juan. I 'm a captain on a "super-midsize" corporate jet for one of the major players in the fractional ownership market, and when we go to Hawaii, we always plan 3 ETPs, 1 for engine failure, one for depressurization, and 1 for medical emergency. It's amazing sometimes how close together they can be when plotting them on the chart.
Captain thank you so much for all this beautiful information even though I’m airline pilot but I am really enjoyable the way I explain the information is to people again wishing you a happy time flying after you’re done your medical and have a safe flight ...... One of your followers find it from overseas
Great info as always, I never had thought that the drop mask were mixed with bleed air, but now understand after the explanation of the chemical mixture, you are a great teacher to us non industry guys who like to learn what makes other machines function and possibly use that info in other trades
That 787 will be like a new toy at Christmas Woo whooo Heck I could see the waves coming off your head when you were talking about it because your brain was so excited 😆
You make it so easy to understand and for that, we appreciate your videos so much. Thank you. We missed Captain Kablamoo helping you with narration on this last video. Carry on!
Thanks Juan! Hope you get the opportunity to fly the 787. I was on a 787-10 Dreamliner in March (as a passenger; I’m not a pilot but follow aviation and aviation news stories) and was impressed!
Another outstanding video JB...thanks. This episode was jam-packed with excellent details that you will never read about in the “In Flight” magazines. Your presentation skills are definitely improving with meaningful content for the average viewer to appreciate. Well done!
Great job Juan. I just retired off the Airbus 319/20/21 with 11,000 in type. The last 3 years I advocated at the highest levels for a smoke removal memory item that would take as little :30 seconds to complete, depending on the altitude. They were lucky the fumes were not toxic. In 1980 Saudi Air Flight 163 landed with 301 dead in the back due to smoke inhalation. For the Airbus 321 push every button on the overhead ventilation panel and the air conditioning/pressurization panel. How simple is that. Then depending on the severity of the smoke and aircraft altitude the Captain decides when to open the outflow valve. The ram air will not open until there is less than one psi differential. When the ram air opens it opens the outflow valve half way, but you can manually open it all the way anytime when you are prepared to depressurize the plane. Had they had this simple procedure. Descend, depressurize and open the ram air valve by pushing every button on those two panels, the smoke would have been gone and no evacuation necessary. Airbus world wide has a smoke event every week.
Thanks for your logical and thorough sharing your knowledge of the cabin pressurization systems Juan ! Once again you're way ahead of ( and far more accurate ) than the MSM ! A lot of high-volume pumps in nuclear plants use similar technology ( but a different working fluid ) to seal the pump shaft ! I expect today's " beast" pays even less attention to the safety briefing than they did when I was " riding " several times/month !
Man I sure appreciate your Channel. In a time of ridiculous media sensationalism, I cannot tell you how refreshing it is to hear the facts and only the facts from a man that doesn’t appear to be a complete idiot. You actually seem to know your stuff but your not beating your chest, just offering up your knowledge and the facts. Thank you sir!
Great detailed explanation of Bleed Air Systems and Operation. I am a former 23 year C-130E & H Crew Chief and Phase Dock Troop. Flew as a DCC on our Units C-130H's during Desert Shield/Storm. 8 1/2 years prior to that a C-119C, G & L --- FE/FM.
Anyone else think about that old John Wayne movie, "Point of No Return" while Juan was giving an explanation for this Hawaiian flight. Great information, it answered some of my questions. Thanks for sharing another informative video. Stan
Can the air be cleared very quickly once down to 14,000 (or was it 10,000)? There's no "open the big vents" is there? Isn't it only a small precentage of "fresh air" that entered the front of each engine that actually comes into the cabin? Most of the cabin air is recirculated, right? Is both cabin air and cargo compartment air intermixed, or are they separate? Does the cabin and the cargo section each have its own outlet or overboard? If you have something smoking in the cargo hold, will that smoke be distributed to the cabin? At cruising altitude, very thin outside air might be -40 to -60 deg C, right? It is compressed by the compressor blades and stators of the engine and squeezed to high pressure and over +100 deg C, right? (Or was it about 100 psi and 400 C?) At that point, (before the fuel, smoke and fire is added) some of that hot, clean, dry air is ported off to the air conditioning system that works some magic in reducing the pressure and getting rid of most of the heat...adding the required pressure and hot or cold needed to keep the cabin comfy. But not good at completely turning over the cabin air volume very quickly, right? The main purpose of the compressor is to feed a high volume of high pressure air (and its large quantity of oxygen) to the combustors to mix with lots of jet fuel and make lots and lots of heat to drive the turbine which in turn drives the compressor and the big fan blades that move most of the air for thrust. The waste heat out of the turbine also produces high speed jet thrust, right? I've noticed on flights when descending, you can begin to smell the air mass over the city you are arriving at. If there is smoke from a brush fire, and your plane flies through it, you will smell a little of that smoke in the cabin. Or a lot of smoke smell if the smoke in the air is thick. Although, I don't think Capt. Juan would fly his plane through a column of smoke. :)
Andrew 13579 Most airliners (maybe all?) have the ability to bring in “ram air” from inlets in the fuselage as a backup source of ventilation in case the packs become inoperative or to help clear smoke. You need to get down to around 10,000’ to ensure enough oxygen content, and the ram air works best at higher speed. As the aircraft slows for landing, less air enters the ram inlets. To answer your main question, ram air with an open outflow valve can replace the cabin air, and hence clear smoke, fairly rapidly.
Thanks for the video Juan! I always thought that the passenger masks design is a bit odd. Hospital masks have the correct shape and their is no confusion about how to place one over your face. That being said, the photos of people not covering their nose when the rubber jungle deploys (I love that term rubber jungle, gave me a good laugh!) is priceless! It's good to hear that the Dreamliner has moved away from engine bleed air.
Thank you, Juan. I appreciate all the aviation information anyway. But things like this will make me a better passenger. And a better helper to a frantic or upset wife.
Juan, I think you answered why a plane that is at the "halfway" point might have to carry more fuel to drop to a lower altitude and continue on, but I don't think you specifically answered why that would make an impact; does the crew have the ability to exchange the air in the cabin via another system than the compressed air inputs from the engines?
Good point! - At 10,000' you can completely depressurize the aircraft, turn off the Pacs, and ventilate the cabin with fresh 'ram' air.
@@blancolirio Thank you for clarifying that! I suspected as much, but I didn't want to assume.
idpromnut : That was a great question !!!!
Why don't they just open the windows? 🤔
@@desertdenizen6428 It would mess up older womens hair dos.
I believe that I only fully comprehend about 60%+ of the technical explanations BUT that does not diminish the great pleasure I get from ‘learning’ and sharing your totally fascinating vlogs; keep up the great work. Thank you! 👍🙏🏼
I really like these little emergency event debriefings/case studies. As an airline pilot, it freshens my education on the situation being discussed and better prepares me in the event that I ever have to deal with something like this as a crew member up front. These are kind of like CBTs except they are much more entertaining and don't put me to sleep.
Thanks Aaron!!
This definitely is helping me to 'keep in the books' while I'm away from the line.
Juan should go on to teach the new pilots, after his airline days are over!
Yet another reason I don't need Television,,, All the News that is fit to be News is HERE!!!!! Thanks Juan!
Exposure to contaminated air wrecked my nervous system and finished my aviation career very prematurely. If you look up the effects of burning jet oil it doesn't for make good reading. Thanks Juan for an in-dept report.
"Rubber jungle" HaHa good one! Great informative report. Always love hearing "Weightless" too. Cheers Juan!
Juan.....you are so GOOD! This from another 40 year pilot!!!
Thanks Samuel!
Thank You for all your excellent content!
It takes a smart person to understand such a technical subject; and an even smarter person to explain it in a straightforward fashion...
I wish you success in getting your 787 type rating done and flying that supermachine.
Juan, You are one great source of valuable knowledge. Thanks so much for sharing in terms the layperson can understand. We are praying that you get back in the air soon. Passengers could not have a better, more competent pilot.
Thanks Juan for your channel, and I hope you get well soon.
There's only Juan person I get my aviation news from.
@ATCkeepsUsafe Who are you referring to?
That comment makes no sense. Sounds like an unhappy troll.
Juan and only.
Great comment. Juan is the Juan
You are now cleared to land on runway Juan Niner
Best video I have watched all day..!
Our go-to guy for aviation commentary.
Another home run from Juan! Thanks for the education1
YES! The music is back!! Thanks Juan!!!
Just for you Chris!
@@blancolirio I LOVE YOU MAN!
man am i glad the orrville dam spillway caved in. i’m hooked on this channel now! keep up the great work Mr Browne.
Not glad it happen, but it brought me to Biancolirio!
Thanks for your reporting again Juan - busy as heck recently with so many aviation incidents!!
As always a great informative video. I worked in the aviation industry years ago and it’s frustrating to see the inaccuracy of news programming. Even from their experts. Glad you’re on the mend and keep up the good work.
Juan, I love your casual but concise way of explaining things. I spent 30 years working on aircraft electrical systems - both in the USAF and on production lines at Lockheed, Hiller, Lear and others. Not that I ever could THINK I know it all, I always learn something from your videos. Thanks for taking the time to do these bits with your insights and expertise. Keep it coming.
I'm always researching and learning too! Helps keep my "head in the game".
I remember the days of airliners having a smoking section. Seems like I'd always be one row removed from this section being a non smoker. Smoke in the cabin never seemed to be an issue in those days. Thank you for another very informative report.
Kinda looked like these pics!
Great explanation. Never knew about the independent sys in the dreamliner.
According to Hawaiian Airlines statement on their Facebook, the plane was landed on 4R and an evacuation was carried out in 30 seconds. No one was seen with baggage when exiting the plane. Kudos to the crew and passengers for actually doing what was taught! Just fyi standard commercial landing routes for HNL in the normal trade winds would be to fly south of the island, to the West end of the island and turn back landing on 8L. This flight had an expedited approach and landed on a runway 4R which is normally used for cargo and civil aviation operations. Happened to take my first flight lesson in a Cessna 152 from that runway many many years ago :)
As a pilot, not only that I am enjoying so much your videos, but also I keep lerning from each and every one of them.
Thanks Samuel!
Juan-fantastic explanation once again. Just plain fantastic. I have never heard a more clear and concise explanation ; and it boils down to the fact that you not only know electro-mechanically what makes these "things" fly but what to do when things go wrong. A master mechanic and a master pilot. You do the industry a great service.
Thanks!
Glad all made it out safely!
Good chance of delayed long term neurological effects if it was an engine seal leak.
My man Juan Brown on top of the news
Juan. I swear ...you are the best reporter/ news round. No bull.Just the facts and sometimes well informed opinion. I tell everybody to go watch the blancoliero channel. It’s the best news around. Very refreshing and trustworthy. I know you’ll hit 100 k Plus and way beyond subs soon! Thank you for your great work.
Thanks D!
Thanks Juan. A fine public service!!!!!!!!!!!!!!!!!!!!!!
Juan, That was a VERY enlightening explanation of the many systems we as laymen have no idea of how those systems work, and the extensive training you have to have beyond the silly stuff like just flying a jumbo jet LOL. I having been a combat medic thought I had a lot of training and what I did learn was KEEP your head calm ,clear and work your medical checklist in your head in a stressful situation. My hat goes off to you pilots keeping us a safe as possible when flying !!!!!!!!!
Thanks Matt!
And thanks for your service!
I am almost ready to fly a 777 and name all the parts of an airplane because of this channel! Your a great educator Juan! Glad your my teacher! ♡KBOS♡
Love you, love your show. Heal quickly, heal well. Dirty little secret - I look at google maps a lot at work, and now every time I see a dam, I look for the spillway
Haa!
"The more you know..."
Wow! Amazing video, so much useful information 👌.
Thanks a lot Juan for taking the time to make all these valuable videos.
Wishing you complete recovery.
As always one provided just the right amount of facts and humour. THANKS, your the best. DH
Another worst-case scenario: fire aboard a submerged submarine transiting through the Straits of Gibraltar. It calls for an emergency ascent into an unknown number of surface craft not expecting a submarine to pop up in front of them. Another great report, Ron. Keep 'em coming!
787 went back to 1950 technology with turbo compressors and refrigeration units like the DC8 and 707. Tried and true. Even the Dart engines had Roots blowers instead of bleed air. Great reporting.
I really appreciate the time, effort and detail that has gone into each and every one of your videos. I am a private pilot and I find your videos super educational. Thank you so much for these educational, informative and interesting videos. Keep up the great work, but please find time to relax and take care too.
You the man when it comes to professional pilot, aircraft irregular and emergency procedures.
Great video, as always. Valujet also taught us some lessons about fire and cargo.
Bill Neely
and the cargo was oxygen generators! Just thinking about the alligators makes me shudder.
"Rubber Jungle" ... I never heard that one before! 😆
Thanks Juan. Always informative and appreciated. Good health my friend. 🙏🏻
Thanks once again for your expertise. Very informative
As always a very good lay mans description of the problem. Thank you Juan for educating those of us that know very little about aircraft.
You’ve rapidly turned into one of my fav GD channels on YT. Thanks for your service.
Love your presentations Juan. So good to know what goes on with the plane in these circumstances. Hope I don't have to go through any of them.
Again a brilliant explanation for us non aviators. You are the best. Thanks Man. I just took my first flight to Spain from Dallas to Madrid last June and watching your channel helped me me feel a lot more comfortable about air travel. Knowing that we have experienced pilots like yourself.
Glad it helps! Thanks Daniel.
Great info, I learn so much from you Juan!! Always wondered why you needed to tug on the mask hose to start the oxygen. Good gravy, now I know!!
Juan, I am a pilot - but Dude, your knowledge is amazing. As always, You are so informative - it's ridiculous.... Always watch, and always a "thumbs up"....
Thanks Obi-Wan!
We used to use Mobil Jet oil 2 in Allison industrial engines, I can verify that stuff flashes to smoke with a terrible chemical acrid smell, scary enough in an industrial enclosure on the ground, in flight it would be heart stopping.
As tough as Jet engines are something as simple as a tiny bit of back pressure on a labyrinth seal drain line can cause massive issues .
Juan I learn more from you in 20 minutes then days of watching news services.
This is the best stop in aviation news on YT, quality assessment of the news as it reported and quality information relating to the unreported, perfect balance to help those less technical to stay informed in all matters relating to aviation. I hope you get back in the sky real soon, thankyou for your efforts.
Thanks Kevin!
always an education. for someone not very aviatorish. thanks, always. take goid care mr browne.
Nice report, Juan. You always clear up the smoke in the cabin.
Lol!
I thought regulations prohibit smoking in the cabin.
Thanks for all the aviation updates Juan! Hope you are feeling well!! All the regulars here are always thinking about you and the family. Hope everyone is doing well!
Feeling better! Thanks Marty.
Great video Juan. I 'm a captain on a "super-midsize" corporate jet for one of the major players in the fractional ownership market, and when we go to Hawaii, we always plan 3 ETPs, 1 for engine failure, one for depressurization, and 1 for medical emergency. It's amazing sometimes how close together they can be when plotting them on the chart.
Great Point(s)...;-) Thanks Steve.
I hope your on the mend. I enjoy listening to your explanations of whats going on with different scenarios.
God Bless!
Captain thank you so much for all this beautiful information even though I’m airline pilot but I am really enjoyable the way I explain the information is to people again wishing you a happy time flying after you’re done your medical and have a safe flight ...... One of your followers find it from overseas
Thanks Goldman!
Great info as always, I never had thought that the drop mask were mixed with bleed air, but now understand after the explanation of the chemical mixture, you are a great teacher to us non industry guys who like to learn what makes other machines function and possibly use that info in other trades
It is amazing that one of these ETOPS aircraft flying between Hawaii and the US Mainland has never had to ditch into the Pacific.
Statistically, it's only a matter of time :/
On a long enough timeline, the survival rate for everyone drops to zero. - Tyler Durden
@@LasVegasVocalist You're not supposed to talk about that ;D
@@Aeronaut1975 Yup I know I violated the first 2 rules.
Juan, loving these airplane vids you are doing!!! stay busy and hope you are recovering well
That 787 will be like a new toy at Christmas
Woo whooo
Heck I could see the waves coming off your
head when you were talking about it because your brain was so excited 😆
A very comprehensive report! Very enlightening. Thanks, Juan.
Thank you sharing this interesting aviation data. You are appreciated.
Your knowledge and your ability to explain it is extremely impressive. Thank you for your service sir.
You make it so easy to understand and for that, we appreciate your videos so much. Thank you. We missed Captain Kablamoo helping you with narration on this last video. Carry on!
Thank you, Juan for great reporting. You are a treasure.
Hope your health will soon allow you to be at the controls of that 787!
Thanks Juan! Hope you get the opportunity to fly the 787. I was on a 787-10 Dreamliner in March (as a passenger; I’m not a pilot but follow aviation and aviation news stories) and was impressed!
"I'll miss going to London."
My only flight (as a passenger) so far on a 787 was coming back from London Gatwick.
Excellent synopsis Juan. Thanks
Another outstanding video JB...thanks. This episode was jam-packed with excellent details that you will never read about in the “In Flight” magazines. Your presentation skills are definitely improving with meaningful content for the average viewer to appreciate. Well done!
Thanks Chuck!
Great job Juan. I just retired off the Airbus 319/20/21 with 11,000 in type. The last 3 years I advocated at the highest levels for a smoke removal memory item that would take as little :30 seconds to complete, depending on the altitude. They were lucky the fumes were not toxic. In 1980 Saudi Air Flight 163 landed with 301 dead in the back due to smoke inhalation. For the Airbus 321 push every button on the overhead ventilation panel and the air conditioning/pressurization panel. How simple is that. Then depending on the severity of the smoke and aircraft altitude the Captain decides when to open the outflow valve. The ram air will not open until there is less than one psi differential. When the ram air opens it opens the outflow valve half way, but you can manually open it all the way anytime when you are prepared to depressurize the plane. Had they had this simple procedure. Descend, depressurize and open the ram air valve by pushing every button on those two panels, the smoke would have been gone and no evacuation necessary.
Airbus world wide has a smoke event every week.
Keep pushing for this. Lots of room to improve procedures here.
Great information, presentation and learning, Juan. Thanks for sharing your knowledge.
Nice. Clear. Concise. Good info for flyers.
That was great. Clear, concise and those seals look neat too.
Excellent video, very educational. Love your reports, my only source for reliable quality news. Best wishes with your continuing medical recovery.
Juan Browne, you are a wealth of information; information based on years of direct experience. As Always, Thanks ! Bob
Never before witnessed anyone ride through a faux pas so smoothly and with such panache!! GO JUAN!! 😂
As always... great content. No BS... just the facts.
Because of Juan, I have more respect for the airlines and the dedicated pilots who fly them.
When it comes to the average passenger’s knowledge about the mysteries and misconceptions of flying, there is an old saying: More is more. Thanks.
Thanks for your logical and thorough sharing your knowledge of the cabin pressurization systems Juan ! Once again you're way ahead of ( and far more accurate ) than the MSM ! A lot of high-volume pumps in nuclear plants use similar technology ( but a different working fluid ) to seal the pump shaft ! I expect today's " beast" pays even less attention to the safety briefing than they did when I was " riding " several times/month !
Thank you Juan! A very informative video from a professional pilot!!!
Man I sure appreciate your Channel. In a time of ridiculous media sensationalism, I cannot tell you how refreshing it is to hear the facts and only the facts from a man that doesn’t appear to be a complete idiot. You actually seem to know your stuff but your not beating your chest, just offering up your knowledge and the facts. Thank you sir!
Thanks Edge!
Great detailed explanation of Bleed Air Systems and Operation. I am a former 23 year C-130E & H Crew Chief and Phase Dock Troop. Flew as a DCC on our Units C-130H's during Desert Shield/Storm. 8 1/2 years prior to that a C-119C, G & L --- FE/FM.
Very interesting presentation. Always very informative. Thankyou.
Anyone else think about that old John Wayne movie, "Point of No Return" while Juan was giving an explanation for this Hawaiian flight.
Great information, it answered some of my questions.
Thanks for sharing another informative video.
Stan
Juan you're a great pilot and engineer! You really help people understand some very challenging topics. Keep it up!
Thanks Juan for your frankness as per usual.
I love your explanations, they make it a lot clearer.
One of your best reports ever!
Damn Pilots: "Sodium Chloride and Iron"; *'Sodium Chlorate'* . OK, I confess a chemistry Nerd. Cheers, Mark
Once again.
A little oil makes a whole lot of smoke when it is placed on something very hot.
Yep!
Can the air be cleared very quickly once down to 14,000 (or was it 10,000)? There's no "open the big vents" is there? Isn't it only a small precentage of "fresh air" that entered the front of each engine that actually comes into the cabin? Most of the cabin air is recirculated, right? Is both cabin air and cargo compartment air intermixed, or are they separate? Does the cabin and the cargo section each have its own outlet or overboard? If you have something smoking in the cargo hold, will that smoke be distributed to the cabin? At cruising altitude, very thin outside air might be -40 to -60 deg C, right? It is compressed by the compressor blades and stators of the engine and squeezed to high pressure and over +100 deg C, right? (Or was it about 100 psi and 400 C?) At that point, (before the fuel, smoke and fire is added) some of that hot, clean, dry air is ported off to the air conditioning system that works some magic in reducing the pressure and getting rid of most of the heat...adding the required pressure and hot or cold needed to keep the cabin comfy. But not good at completely turning over the cabin air volume very quickly, right? The main purpose of the compressor is to feed a high volume of high pressure air (and its large quantity of oxygen) to the combustors to mix with lots of jet fuel and make lots and lots of heat to drive the turbine which in turn drives the compressor and the big fan blades that move most of the air for thrust. The waste heat out of the turbine also produces high speed jet thrust, right? I've noticed on flights when descending, you can begin to smell the air mass over the city you are arriving at. If there is smoke from a brush fire, and your plane flies through it, you will smell a little of that smoke in the cabin. Or a lot of smoke smell if the smoke in the air is thick. Although, I don't think Capt. Juan would fly his plane through a column of smoke. :)
I'm just an automotive tech, but I can attest to this fact.
@@Kreemerz Oil will burn inside the engine, but it requires very high temperatures, beyond those found in the compressor and air conditioning.
Andrew 13579 Most airliners (maybe all?) have the ability to bring in “ram air” from inlets in the fuselage as a backup source of ventilation in case the packs become inoperative or to help clear smoke. You need to get down to around 10,000’ to ensure enough oxygen content, and the ram air works best at higher speed. As the aircraft slows for landing, less air enters the ram inlets. To answer your main question, ram air with an open outflow valve can replace the cabin air, and hence clear smoke, fairly rapidly.
Juan excellent video thanks! Wishing you all the best with your medical situation!
I'm a passenger, not a pilot, but I really appreciate these educational videos...
Thanks Michael.
Thanks for the video Juan! I always thought that the passenger masks design is a bit odd. Hospital masks have the correct shape and their is no confusion about how to place one over your face. That being said, the photos of people not covering their nose when the rubber jungle deploys (I love that term rubber jungle, gave me a good laugh!) is priceless! It's good to hear that the Dreamliner has moved away from engine bleed air.
Thank you as always for a fascinating presentation from someone who actually knows what he's talking about!
glad the theme songs back,have missed it
Loved the keep your feet off the furniture warning
You really Juan us over with your classic, clear, passionate and comprehensive reports, as per usual. =)
Thank you, Juan. I appreciate all the aviation information anyway. But things like this will make me a better passenger. And a better helper to a frantic or upset wife.
Great Info. Thanks Brother. Got a Laugh from The Rubber Jungle. Never heard it like that! Be Safe.
This is a proper channel!