Any question regarding QNH, QFE or QNE? Leave a comment below and I will help you out!
@vantranthi3983 жыл бұрын
I knew that in some book they called QNE being pressure alttitude of an aircraft when it is on runway, so QNE is not a pressure value. 1013hPa ia standard pressure. Is it right?
@PILOTCLIMB3 жыл бұрын
@@vantranthi398 This is true on a standard Atmosphere condition however, in real life the QNH varies thus, with a QNH of 1000hpa, at your airport, for example, the QNE is not your elevation anymore. Yes, many times we refer to QNE as the pressure reference however, if you look at its very correct definition is the difference expressed in feed between the 1013.25hpa and the aircraft.
@vantranthi3983 жыл бұрын
@@PILOTCLIMB thank you very much for your reply. I have more questions 1) As you told “ QNE is the distance btw 1013hPa and aircraft”. We all know “distance btw aircraft and 1013hPa is Pressure altitude”. So why in some books people need to use QNE as pressure altitude? 2) 1013hPa is standard pressure, why in some book people need to use QNE as standard pressure. Should we confuse pilots by those 2 things? 3) In our area we follow ICAO and WMO terms. Would you tell me in which doc/book I may have QNE definition? Thank you in advance
@doonaviation58643 жыл бұрын
What is meant FL 380 in aviation?
@PILOTCLIMB3 жыл бұрын
@@doonaviation5864 Hey, Thanks for watching!! FL380 equals 38000 feet from the Standard Pressure Reference of 1013.25Hpa.
@aggelos931 Жыл бұрын
Thanks, short and simple. Didn't perfectly understand the concept by reading the course material so I had to google it and I found this.
@PILOTCLIMB Жыл бұрын
You are very welcome
@Blackboykazakh22 күн бұрын
Bro you are the best explainer ever have I seen! Just keep it up! Wish you all the best with your career!
@slavimihaylov24559 ай бұрын
Great content, I was not able to understand this topic after couple of days reading, thanks to you capitan I understood it for 7 min!
@PILOTCLIMB9 ай бұрын
That's great! Thanks for watching!
@muhammadfahamfaisal58802 жыл бұрын
Well explained in short. This will clear all your doubts & you’ll get the explanation as well.
@PILOTCLIMB2 жыл бұрын
Many thanks for your great support!! I'm glad the video helped
@BoitumeloTumiRikhotso2 жыл бұрын
Thank you so so much. The pictures have helped to cement the concept in my head. Very helpful as I’m busy with ground school at the moment; in time for my MET exam this week.
@PILOTCLIMB2 жыл бұрын
That's great! I'm glad it helped!
@alanwilldoit Жыл бұрын
I love this so much. so clear and concise. This truly helps many student pilots in their journey. Thank you so much
@PILOTCLIMB Жыл бұрын
You are Very welcome!
@hanadi48Ай бұрын
This is a great video.. I always struggled with understanding altimeter settings . Thank you very much.
@RohitSharma-zg2ys3 жыл бұрын
best explanation ever. i am an A/C mechanic. you cleared my doubt.
@PILOTCLIMB3 жыл бұрын
That's great!! Many thanks for watching and the comment!! Don't hesitate to ask any question..
@therated6613 жыл бұрын
Short but definitely precise and comprehensive explanation. Thank you so much captain. Im Always looking for a brief answer to what are their differences and here you explained it in the most understandable manner. Earned you a subscriber! Safe skies
@PILOTCLIMB3 жыл бұрын
Hey, welcome on board!! Thanks for watching and the kind comment !! Don't hesitate to ask me any questions when watching the rest of the videos..have a great weekend
@abracadabra5443 жыл бұрын
Thank you for giving concrete examples (when do we use one and when the other) !
@PILOTCLIMB3 жыл бұрын
You are welcome! You use the QNH when you are below the Transition Altitude, and the 1013 when above it during climb... During descent you use the 1013 until the Transition Level and than you switch to QNH.. In the Channel there are videos regarding Transition Altitude and Transition Level.. check them out and if you still have questions let me know ! I wish you a great day!👍
@bassandre276 ай бұрын
Thanks for your explanation. Cheers from Brazil!
@PILOTCLIMB6 ай бұрын
You are very welcome!
@MrCed08023 жыл бұрын
Very well explained. Thanks a lot ! Looking forward to new videos
@PILOTCLIMB3 жыл бұрын
Hey!! I hope you are doing great!! I am very glad you find it useful! I wish you a great day Gabriele Pilotclimb.
@madhvishrivastava36462 жыл бұрын
Thank you for the very good explanation. I was struggling for the good explanation. Thanks alot.
@PILOTCLIMB2 жыл бұрын
You are very welcome !!
@dmns Жыл бұрын
Thank you Captain, this really helped me understanding.
@PILOTCLIMB Жыл бұрын
That's great! You are very welcome!
@tinsebelja7863 жыл бұрын
Very nice video, explained much clearer than in my book
@PILOTCLIMB3 жыл бұрын
Many thanks for your kind comment! Don't hesitate to ask any questions when watching the rest of the videos
@kayalvizhi84223 жыл бұрын
Thanks for your explanation!!!it's very easy to understand..
@PILOTCLIMB3 жыл бұрын
You are welcome! Don't hesitate to ask me any questions when watching the rest of the channel videos. Have a great day!
@fanoooooo63 жыл бұрын
excellent break down and very clear , cheers fella , top bloke
@PILOTCLIMB3 жыл бұрын
Thank you very much for the kind comments!! Don't hesitate to ask me any questions you might have!!
@ruizhibai56923 жыл бұрын
Hi,I'm a PPL student,could please make a video about how to use flight computer calculate true heading,TAS,variation…and so on ..…
@PILOTCLIMB3 жыл бұрын
Hey, Thanks for watching and the comment!!I will take your request into consideration for a future video!!
@robertoforbes34053 жыл бұрын
Did you take the faa written as yet?
@MrBasit19953 жыл бұрын
Great video Captain ! very well explained. two thumbs up for your video 👍👍
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for watching and your support!! Have a great day!
@Antoine-Zim2 жыл бұрын
Very clear and informative. I get it now why I have to change the Baro en route flying on my sim.Thanks a lot for what you share with the aviation community.
@PILOTCLIMB2 жыл бұрын
You are very welcome!
@conned Жыл бұрын
Above TA, you "pull STD" or set 29.92inhg or 1013.2mb, depending on your acft type pressure setting Baro window. From enroute, to descent to airport,At TL, you set QNH according to atis/metar. Both TA and TL height are indicated on Sid/stars and IAP/let down plates. In U.S, it FL180 strait line, Germany or EU is 5500TA, rest elsewhere could be 11,000ft TA(QNH) for Dep or FL130(STD), Arr."set QNH". Simple! I'm fan of PilotClimb too
@pelebar16362 жыл бұрын
very nice explained very well. thank you.
@PILOTCLIMB2 жыл бұрын
You are welcome
@gregarmstrong8675 Жыл бұрын
a lot better than my IATRA notes I got here .
@PILOTCLIMB Жыл бұрын
Thanks for watching!
@Jigden10 ай бұрын
QFE is used by helicopters to land in unknown helipads. Great video
@PILOTCLIMB10 ай бұрын
Thanks for your comment! You are very welcome!
@TheOrangeGecko8 ай бұрын
Great video, very well explained!
@bergspot2 ай бұрын
Quite clear, thanks!
@Eva-cs5le2 жыл бұрын
FANTASTIC VIDEO!!!! Thank you very much for taking the time to explain this
@PILOTCLIMB2 жыл бұрын
Many thanks for watching!
@d.petrov44238 ай бұрын
I thought that the planes were taking off with QFE... Thanks for the vid!
@ibeeadane44302 жыл бұрын
I subscribe when they deserve it. And you well deserve it
@PILOTCLIMB2 жыл бұрын
Many thanks for your support!
@nicholasbarbier33102 жыл бұрын
thank you sp much for this explanation, it was very helpful
@PILOTCLIMB2 жыл бұрын
Glad you like it! Thanks for watching
@arazali4002 Жыл бұрын
It was so much clear and good
@PILOTCLIMB Жыл бұрын
Thanks for watching
@shahilmisran3023 жыл бұрын
Meticulous Explanation 👏🏼- A320 FO
@PILOTCLIMB3 жыл бұрын
Many thanks for watching and the kind comment! Small correction regarding the video, We commonly refer to the QNE as a pressure reference, however, if you look at its definition is the vertical difference expressed in feet between the 1013Hpa isobar and your aircraft. I made a separate video about that: kzbin.info/www/bejne/l2jSlauFqL93q7M
@erikdeme Жыл бұрын
Great explanation, thanks a lot!
@PILOTCLIMB Жыл бұрын
You are very welcome
@martin81bayern8 ай бұрын
Thanks for the explanation. But in theory it would still be possible to do all the vertical seperation and flight level stuff based on QNH instead of QNE and considering that there is a bottom layer of terrain which cannot be used for aircraft separation. QNE seems to be a helper for the "terrain problem" only. Nothing more and nothing less. Many of abbreviations for relatively simple things... the aviation business really loves complex sounding abbreviations :D Greetings from south Germany
@studywithveer89622 ай бұрын
You are god teacher in aviation
@miguelfernandes6572 жыл бұрын
Fantastic!
@PILOTCLIMB2 жыл бұрын
Glad to read you like it! Thanks for watching
@jinwelcesar43352 жыл бұрын
Thank you for your informative video.
@PILOTCLIMB2 жыл бұрын
Hey, thanks for watching!! Check out this video: kzbin.info/www/bejne/gIOzoolql8mNb9E
@eyoaniekanabasi14933 жыл бұрын
Your videos are so helpful. Thank you Capitain
@PILOTCLIMB3 жыл бұрын
You are more than.welcome!! Thanks for watching!
@rodneyskennedy31633 жыл бұрын
Very clear explanation thanks.
@PILOTCLIMB3 жыл бұрын
I'm glad you liked the video!! Don't hesitate to ask me any questions when watching the rest of the PILOTCLIMB channel videos..
@calebanani7665 Жыл бұрын
Thanks! It has been helpful and the explanation has been clear! 5/5 🙌🏽
@PILOTCLIMB Жыл бұрын
You are very welcome
@zahariaandrei57562 ай бұрын
Thank you Căpitan.!
@nadine6243 жыл бұрын
great video, thanks!!
@PILOTCLIMB3 жыл бұрын
Many Thanks for watching and the kind comment!
@walrus78143 жыл бұрын
very lovely and very helpful
@walrus78143 жыл бұрын
you are a lovely man
@PILOTCLIMB3 жыл бұрын
Many thanks for watching and the great support! I wish you a great day! Please check the following video for a small correction on the definition of QNE: kzbin.info/www/bejne/l2jSlauFqL93q7M
@Pilot.Kevs.2 жыл бұрын
well explained.
@PILOTCLIMB2 жыл бұрын
Thank you!
@JJ-bb3sv7 ай бұрын
Thank you captain, great video and clear explanation! Would QFE then be useful for student pilots doing circuits at an airfield?
@Hacker121283 жыл бұрын
Thank you very much captain 👍👏
@PILOTCLIMB3 жыл бұрын
You are more than welcome! I'm glad you liked it!!
@hngtmrdn10 ай бұрын
so helpful thankyou👏🏻👏🏻👏🏻👏🏻👏🏻
@PILOTCLIMB10 ай бұрын
You are very welcome!
@hajeralthehli86 Жыл бұрын
Hello Captain, could you please explain to me how the aircraft get separated since all planes maintain the same standard setting 1013 hPs during the cruise phase. Thanks
@PILOTCLIMB Жыл бұрын
Since they use the same pressure reference if they fly at different Flight Level they are separated. Check my videos regarding altimeter settings..
@hey-zq1vq3 жыл бұрын
Great video and explanation, Thank you :)
@PILOTCLIMB3 жыл бұрын
You are welcome!! Thanks for watching! Don't hesitate to ask me any questions when watching the rest of the PILOTCLIMB channel videos..👍
@fascination34723 жыл бұрын
Please make video on general navigation if you can
@PILOTCLIMB3 жыл бұрын
Hey, thabks for your comment!! I'll take your suggestion under consideration for a future video
@tirsocanales83662 жыл бұрын
Do you have a video showing how to fly into an airport with QFE???
@PILOTCLIMB2 жыл бұрын
Not yet, I'll make it in the future!!
@jayshreepatil29293 жыл бұрын
thank you bro great work make more videos on such topics...
@PILOTCLIMB3 жыл бұрын
Hey!! Many thanks for watching and the kind comment!! Check the Channel I'm sure you will find some interesting videos 👍 don't hesitate to ask me any questions you might have
@jayshreepatil29293 жыл бұрын
It's all ok buddy but where could I ask you my doubts do you have any insta profile ??......and yes don't say thanks you really did the awesome work .....🤗
@PILOTCLIMB3 жыл бұрын
@@jayshreepatil2929 You can ask your question in the comment here, no problem 👍
@captsonko.93453 жыл бұрын
Thanks pilot nice work keep up.
@PILOTCLIMB3 жыл бұрын
Thanks for watching!! Ask me any questions you might have when watching the rest odf the videos.
@captsonko.93453 жыл бұрын
will do thanks capt.
@ericgrim46022 жыл бұрын
An explain how you adjust the flight with earth curves
@PILOTCLIMB2 жыл бұрын
Hey, I'll take your suggestion into consideration for a future content
@rabindrasah69833 жыл бұрын
Nice video and concept is well understood
@PILOTCLIMB3 жыл бұрын
hey, many thanks for watching, I'm happy the video helped you! I wish you a great day Gabriele
@symonshuvo42193 жыл бұрын
Good one. Thanks.
@PILOTCLIMB3 жыл бұрын
Many thanks for watching and the comment!!Have a great day
@abracadabra5443 жыл бұрын
feedback from my side, maybe don't use the loud engine sound for intro and finish of the video :D or at least not that loud. If you are listening with headphones or not prepared it may be disturbing
@PILOTCLIMB3 жыл бұрын
Many thanks for your feedback!! You are right! I'll lower it! 👍
@flapthrottle43943 жыл бұрын
Thanks Captain 🧑✈️! I would appreciate videos about some stuff ...like....working of turbine engine, hydraulic system, PACK flow, cooling system, or emergency situation and the way you handle them...generator also in issue , Vx Vy, clear air turbulence....and so on... and many more. I think you understand what I mean. thanks. 🙏 greetings
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for watching! You actually gave me ideas for future videos 👍.. If you look in my channel I made already a video regarding Vx and Vy, check that out and let me know if you have any questions👍
@sumitcreations30723 жыл бұрын
Impressive explanation sir 👍👍
@PILOTCLIMB3 жыл бұрын
Thanks for watching and the comment!! Have a great day!
@mahdi42773 жыл бұрын
Thank you captain
@PILOTCLIMB3 жыл бұрын
You are more than welcome! Please Check this quick for a small correction regarding QNE: kzbin.info/www/bejne/l2jSlauFqL93q7M
@antarabhadra53513 жыл бұрын
Excellent description sir, thanks 🙏🏾
@PILOTCLIMB3 жыл бұрын
You are welcome! Don't hesitate to ask me any questions when watching the rest of the PILOTCLIMB COMMUNITY videos 👍
@antarabhadra53513 жыл бұрын
@@PILOTCLIMB sure Captain
@daniellu1507Ай бұрын
Could you do videos about weathers, like windshear , Jet streams ,CAT
@HarryBunnGRVOTV3 жыл бұрын
Thanks.
@PILOTCLIMB3 жыл бұрын
You are welcome!! Thanks for watching
@jacobmarshall78102 жыл бұрын
You said about elevation. This elevation.. is it the height between the mountain and sea or is it the height between thr sea and ground?
@PILOTCLIMB2 жыл бұрын
Hey, is the height between the top of the mountain and the sea..thanks for watching
@RohitSharma-zg2ys3 жыл бұрын
well, just a suggestion your next video could be on Auto Pilot system.
@PILOTCLIMB3 жыл бұрын
I will take your request into consideration for a future video!! If you watch the sim videos I'm doing now you can learn a lot about AP
@lakelamine3 жыл бұрын
Hi captain, please could you explain the air traffic controller areas and their areas limits
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for watching!! I will take your request into consideration for a future video!! I wish you a great day!
@lakelamine3 жыл бұрын
@@PILOTCLIMB I'm grateful for you
@ClanLawrence2 жыл бұрын
Sorry, but your explanation and definition of QNE is incorrect. This seems to be a common misconception all over the internet, from some sources that should know better. What you are describing as QNE is the Standard Pressure Setting (SPS or STD). QNE is a different thing altogether. QNE is not a Subscale Setting, it is an altitude reading, more specifically it is the indicated altitude of an aircraft on the ground, at the runway threshold, with 1013 set on the subscale. It is used very rarely, in conditions of exceptionally low pressure where the QNH or QFE is so low it is past the range of the Altimeter Subscale and so is impossible to set.
@PILOTCLIMB2 жыл бұрын
Thanks for your feedback! I made a separate video about the topic you commented!
@ClanLawrence2 жыл бұрын
@@PILOTCLIMB Yes. Your definition of QNE is incorrect in that video too.
@Fahad_16052 жыл бұрын
Sir please make a video on CONTOUR .
@PILOTCLIMB2 жыл бұрын
I'll take your suggestion into consideration for a future content
@georgeb69093 жыл бұрын
Great explanation thank you!
@PILOTCLIMB3 жыл бұрын
You are more than welcome!! Have a great day
@fascination34723 жыл бұрын
Nice Sir 👍👍
@PILOTCLIMB3 жыл бұрын
I'm glad you liked the video!!
@benokohministries Жыл бұрын
If you’re some where at 3,000 ft on final approach, and the QNH is 10.20 Hp, and field elevation is 433 ft, how then do you calculate how many feet to land? From the altimeter should you aim to torch down at 433 ft being the field elevation? I have tried aiming to land at 433 ft from the altimeter, but it doesn’t work. I would finally torch down at 344. Pls how do I calculate it right?
@PILOTCLIMB Жыл бұрын
Make sure that the QNH is correct, also check the Threshold elevation that sometimes is different than the airport elevation.
@seankelly4213 жыл бұрын
Shot, this was the best!
@PILOTCLIMB3 жыл бұрын
Many Thanks for watching and the kind comment!! Don't hesitate to ask any questions you might have when watching the rest of the videos!!
@surendrakverma55528 күн бұрын
Thanks 🙏
@lukasbauer5863 жыл бұрын
grazie mille !
@PILOTCLIMB3 жыл бұрын
Prego... thanks for watching!!
@JJegadeshPandian11 ай бұрын
Please make a video on ILS or VOR
@PILOTCLIMB11 ай бұрын
I take your request into consideration for a future content.
@abhishekbajimaya73503 ай бұрын
thank you sir
@ebubekirtamgac59642 жыл бұрын
First of all i want to thank you for this perfect awesome fantastic didactic and clear video, i have tried to understand this issue on many different sources but never got fully understand as a pilot candidate you have been my first info channel :) love from Turkey
@PILOTCLIMB2 жыл бұрын
That's great!! I'm glad to see the video helped you!! Don't hesitate to ask me questions when watching the rest of the channel videos!!
@chetankumarsahu63443 жыл бұрын
Make a video about airmenship basics plz
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for watching!! I'll take your suggestion under consideration!! It is a great topic!! Have a great day
@PILOTCLIMB3 жыл бұрын
Hey, I hope you are doing great! I uploaded the video about airmanship yesterday! Enjoy 👍
@siddharthsingh3503 жыл бұрын
thanx
@PILOTCLIMB3 жыл бұрын
You are welcome!! Thanks for watching and the comment!
@ugipilot49712 жыл бұрын
When you say that the mean sea levels changes depending on the water, and when the Mountain takes as reference the QNH, should have also not change the Information regarding the height of the mountain on the charts all the time ? I this case there must be a safety separation to the height published on the charts of the terrain, which enusures Terrain separation even when the QNH changes are big ?
@harshitbhardwaj21663 жыл бұрын
Sir Does MSL keeps on changing from Place to Place??
@PILOTCLIMB3 жыл бұрын
Hemy, thanks for watching, the Atmosphere makes the MSL to change constantly, in aviation a Datum is used to calculate where the MSL is depending on the period of the year.
@baxnaano14363 жыл бұрын
Waad ku mahdsan tahay cilmiga aad ii faaideysay 🇸🇴
@PILOTCLIMB3 жыл бұрын
You are welcome🙏
@akandindadyson35644 ай бұрын
Help me explain how to apply this when there a change in pressure during flght
@tareQ8322 жыл бұрын
Explain about CBs
@PILOTCLIMB2 жыл бұрын
I'll take your suggestion into consideration for a future content
@dr.celalettinucar3 жыл бұрын
Excuise me sir, i want to ask this definition to you which about Flight Level. Below the FL180 is FL or not? I know that above the tranaition altitude called as FL. But what is this meaning? Class A - Positive Control ATC exercises complete control in the Positive Controlled airspace. Jets are the primary user of Class A airspace. It ranges from 18,000 feet (Flight Level 180) to 60,000 feet (FL600). Altitudes 18,000 feet and above are called Flight Levels (FL). Class A airspace is not specifically charted on aeronautical charts. Operation is in accordance to Instrument Flight Rules (IFR). The aircraft must be equipped with appropriate IFR instrumentation, including a Mode C altitude reporting
@PILOTCLIMB3 жыл бұрын
Good morning, I hope you are well!! In some places the Transition Altitude is fixed at 18000feet, thus above that is always FL. However, in Europe for example, the Transition Altitude changes from place to place depending on the Orography. Below the Transition Altitude during Climb you use Altitude and, above it you use the Flight Level. Let me know if I answered your question.. I also made few videos about this topic..
@dr.celalettinucar3 жыл бұрын
@@PILOTCLIMB Thank you for your clarification. Your channel is very useful for student pilots like me. There are some differencies between icao and faa documants and sometimes it is difficult to understand for me. I understood by dint of your answer. Have a good day captain, best regards.
@PILOTCLIMB3 жыл бұрын
You are welcome! Have a great day!
@syedavasiyath2 жыл бұрын
Can you do training on surveillance?
@PILOTCLIMB2 жыл бұрын
I'll take your suggestion into consideration for a future content
@syedavasiyath2 жыл бұрын
@@PILOTCLIMB if possible on ATM what is flight plan what are different attributes in it ? What is track and coupling ?
@calinutza333 жыл бұрын
I subscribed anyway. ! 😜😎😍
@akhidifa11413 жыл бұрын
i'm aerospach enggenering can you tell how i acount QNH You at a strip which has an elevation of 780 feet. You set 1013 hPa on your subscale and the altimeter reads 930 hPa. The OAT reads 6°C. What is the QNH and the density altitude?
@PILOTCLIMB3 жыл бұрын
Hey, I hope you are doing great!! Many thanks for watching the video!! When you are saying that the altimeter is reading 930 hpa do you mean 930 feet?
@phoonjzc2 жыл бұрын
Why cant set QNE for everywhere? No need rely on QNH and change at all airports
@PILOTCLIMB2 жыл бұрын
Because the separation with obstacles won't be guaranteed..
@phoonjzc2 жыл бұрын
@@PILOTCLIMB Hi I doing PPL not ATPL so appreciate if you explain more details. An example with mathematical figures will be appreciated.
@AccordionandViolinlife3 жыл бұрын
Excellent! so is QNE the same as ISA for air pressure?
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for another kind comment!! According to the ISA the pressure at the mean sea level (QNH) is 1013.25Hpa, which is the same as the standard pressure reference for QNE. In real life is extremely rare that the QNH equals the standard pressure of 1013.25Hpa. Let me know if you have more questions!!
@saadaldossary49163 жыл бұрын
@@PILOTCLIMBThank you for your informative video , so we can say the standard pressure in QNH is equal to QNE??
@PILOTCLIMB3 жыл бұрын
@@saadaldossary4916 You are welcome, in ISA conditions the QNH equals to 1013.25hpa. Please note that even if we commonly refer to QNE as a standard pressure reference (1013.25 hPa) in reality is the difference between the 1013.25hpa and your aircraft expressed in feet. I made a separate video where I talk about this: kzbin.info/www/bejne/l2jSlauFqL93q7M Let me know if you still have any questions. Have a great day
@p095410 ай бұрын
Well explained. I have just started going for my ppl and it’s only qnh and qfe that are used. This is the first time I’ve heard of qne
@ManishBhanwariya3 жыл бұрын
Thanks sir😍😍😘
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for your comment and for watching! I wish you a great day Gabriele Pilotclimb
@franzrapuano81833 жыл бұрын
Hi, I would like to ask you something if you don´t mind, just an observation, when I was studying, long time ago, QNH was the pressure at the MSL, but calculated from the pressure at the airport and then reducing as per standard 1" ----1000ft in this way calculated the QNH. Is this still the way I supposed or not?. Thanks in advance
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for watching, and welcome on board!! Yes, as far as I'm aware, the QNH is still calculated starting from the pressure and the elevation of the airfield. Once you know the Airfield Pressure (QFE) and Elevation you can find what is the local QNH by applying the standard pressure variation of 30feet per Hpa. The temperature that is used to calculate the QNH from the QFE is the ISA. Don't hesitate to ask questions when watching the rest of the videos! I wish you a great weekend!👍
@franzrapuano81833 жыл бұрын
@@PILOTCLIMB Thanks a lot for the reply. Great videos
@atifnuman33542 жыл бұрын
Why don't we use QNE always instead of changing from QNH at transition altitude
@atifnuman33542 жыл бұрын
We can also get altitude of terrain in QNE reference
@PILOTCLIMB2 жыл бұрын
Thanks for the comment, watch the other videos regarding altimeters.. i explain why you need to change the pressure reference..
@mishomishev32833 жыл бұрын
gr8
@PILOTCLIMB3 жыл бұрын
Glad you liked the video!!
@dr.celalettinucar3 жыл бұрын
Sir, you explained qnh as a "pressure at mean sea level and why we use it? because all terrain or obstacles around the airport such as top of mountains are declareted qnh height". I know this is true defining according to literature but i wonder that qnh is changing everyday but our charts and top of obstacles and terrain altitudes do not ! Temperature, air density, airmass pressure not same. On the other hand if this defining is true every top of terrain altitudes on the maps or charts will change everyday with variable qnh value... ( I know it is negliable little error but if you measure the same top of mountain heigh with a static gps which is referenced grs80 ellipsoid and qnh referenced altimeter same time, gps height will not change but altimeter height will chance a little bit because of every qnh referance changing...) I guess this error will solve in future by dint of satellite navigation technologies such as gps. Best regards
@PILOTCLIMB3 жыл бұрын
Hey, many thanks for watching and for the thiughtful comment! You are right, depending on the Temperature and Density the space between the isobars can vary. Usually, that's not a problem, however when you have temperature that are 0 or negative it might become a problem, in fact we apply the Temperature corrections to the Altitudes that we are flying. This will make sure we stay separated to the obstacles. Have a great day!
@dr.celalettinucar3 жыл бұрын
@@PILOTCLIMB Thank you for your comment.
@bmo45332 жыл бұрын
Hi Captain! What does "Q" stand for in QFE, QNE, and QNH?
Ah, QNE is not standard pressure. It is what the altimeter will read on touchdown with standard pressure set. Source : The Handbook of Aviation Meteorology.
@PILOTCLIMB3 жыл бұрын
Hey, Many thanks for watching and the comment!!You are right, even if commonly we refer as a pressure reference if we look at the QNE definition it is actually the difference expressed in feet between the 1013.25hpa standard pressure reference and the Aircraft. I made a separate video about this: kzbin.info/www/bejne/l2jSlauFqL93q7M Have a great weekend
@raydimascio55323 жыл бұрын
@@PILOTCLIMB Many thanks for that. I also forgot to add that QNE is no longer listed in ICAO Doc 8400 "Abbreviations and Codes" 2016