Doing my CFI training this summer. Been studying up on everything, and wanted a good explanation other than reading the textbook. Great explanation, made it very clear!
maybe. I mean but what is the angle of attack vs airspeed do I want my airspeed to remain the same while the aircraft gains altitude or do I want the airspeed to decline as higher altitude is reached. I understand what the difference is but how do you achieve the fastest rate of climb in the shortest time. For example different planes are given a different rate of climb at full speed. is that at a 90' angle of attack losing speed as altitude is lost or constant speed at say 20' ? there was no math to make this determination?
This is the second video I've seen from you, I'm glad to see you have many videos! I'm going to watch them all! Some of my comments might just be to help you with the UA-cam algorithm!
I'm glad to see you liked the video!! Have a look on my channel...I made more than 100 videos (and more to come)..don't hesitate to ask me any questions when watching the rest of the videos! I wish you a great day!👍
It's because of the air density, the lower the density the less air molecules get into your Pitot thus lower IAS indication. Vx and vy are the same at the absolute ceiling because the residual climb grandient is 0 there.
Does this choice of Vx and Vy affected my take-off performance for example if we takeoff from airport with runway length of 3500 m.If i choose Vx then i need more runway let say 3300 m and if i choose Vy i only need 2600 m and maybe setting thrust N1 or engine power @climb also different for Vx maybe 85% N1 and Vy 93% N1 ?
The Vx and Vy affects your climb performance after take off, if you want to change your TORR you should change the Flap setting for takeoff.. have a great day
Many thanks for watching and the comment!! The Vx and Vy speeds have to be used after airborne, if you want to shorten your take off distance you can use an higher takeoff flap setting.. Let me know if you have more questions
One thing i dont understand why is Vy best ROC speed? In a situation where i choose the Vx wont my vertical speed be higher if im pulling a bigger angle? I get that IAS will be lower yes, what confuses me is that in Vx Vertical Speed is higher or should be higher yet Vy is the one that is called Best Rate of Climb speed. Really dont understand.
@@ansonkwok723 Hey, I hope you are doing very well, Many thanks for watching my Video!! This is a very good question, however, I'm not a specialist on Aircraft Manufacturers procedures, so I don't know exactly what they use to determine the Vx and the Vy. My GUESS is that since the Vx and Vy change with multiple factors, such as Power Available (PA), Power Required (PR), weight, altitude and so on, the manufacturers combine flight data (obtained during flight tests) and math formulas in order to determine the Vx and Vy. Normally you can find in the Airplane flight Manual a table with the Vx and Vy tables, in the most sophisticated Aircrafts these speeds are calculated by the FMS using current and updated flight data. Again, this is just my guess, so take it with a grain of salt since I'm not an expert on Aircraft Manufacturer. I wish you a great day!
![V1 Takeoff Speed - [decision speed explained and common V1 MYTH BUSTED]](http://i.ytimg.com/vi/KHAwEZjmIbc/mqdefault.jpg)
![V1 Takeoff Speed - [decision speed explained and common V1 MYTH BUSTED]](/img/tr.png)
![Climb Gradient Explained - [All you need to know about your minimum rate of climb].](http://i.ytimg.com/vi/2lcvTNFMh2g/mqdefault.jpg)
Doing my CFI training this summer. Been studying up on everything, and wanted a good explanation other than reading the textbook. Great explanation, made it very clear!
Hey!! Thanks for watching and the kind comment!! You will enjoy being CFI!! Good Luck!! Let me know if I can help in the future👍
maybe. I mean but what is the angle of attack vs airspeed do I want my airspeed to remain the same while the aircraft gains altitude or do I want the airspeed to decline as higher altitude is reached. I understand what the difference is but how do you achieve the fastest rate of climb in the shortest time. For example different planes are given a different rate of climb at full speed. is that at a 90' angle of attack losing speed as altitude is lost or constant speed at say 20' ? there was no math to make this determination?
Excellent! Now I got it. Vx - (Best angle) Shortest distance and Vy - (Best rate) shortest time. Thank you.
You are very welcome!!
This is the second video I've seen from you, I'm glad to see you have many videos! I'm going to watch them all! Some of my comments might just be to help you with the UA-cam algorithm!
That's great!!! Many thanks for the support!!! Don't hesitate to ask me any questions when watching the rest of the videos 👍
Great explanation, simple and to point! So much better than my PPL text !! Thank you so much! Looking forward to more videos from you! ;)
I'm glad to see you liked the video!! Have a look on my channel...I made more than 100 videos (and more to come)..don't hesitate to ask me any questions when watching the rest of the videos! I wish you a great day!👍
Great video Capt Gabriele,i miss it last year....👍👍....have a nice weekend
I'm working on a 2 new videos... Soon I'll be back..
Your explanations are very clear and concise! Keep up the outstanding work! Even better if, you included the power and drag graph.
Hey, Many thanks for the kind comment and for watching!! Have a great weekend
Amazing and simple. Thank you!
You are very welcome!!
Whenenever I search for an answer on a specific subject, I make the search and look up ıf you have a video on this. Thank you.
Awesome! You are very welcome!
Basically I think the only reason to use Vx is if it is needed for obstacle clearance. Vy gives better forward visibility and is easier on the ears.
Thank you for explaining these and the reasons for each. It helped so much!
You are welcome! Glad it helped! I wish you a great day!
Thanks very clear video and simple
Many thanks for watching and the kind comment
Books says,as we get highter, Vy becomes smaller in terms of indiated air speed? Do you know why? And why on abouslte celling VY=VX ?
It's because of the air density, the lower the density the less air molecules get into your Pitot thus lower IAS indication. Vx and vy are the same at the absolute ceiling because the residual climb grandient is 0 there.
Great video. Thanks
You are very welcome
Thank you for the explanation now how do you calculate it?
You are very welcome!! I'll take your suggestion into consideration for a future content!
Thank you
You are very welcome!!
Does this choice of Vx and Vy affected my take-off performance for example if we takeoff from airport with runway length of 3500 m.If i choose Vx then i need more runway let say 3300 m and if i choose Vy i only need 2600 m and maybe setting thrust N1 or engine power @climb also different for Vx maybe 85% N1 and Vy 93% N1 ?
The Vx and Vy affects your climb performance after take off, if you want to change your TORR you should change the Flap setting for takeoff.. have a great day
Good job!!!
Good video. Just to make sure that I understand correctly. You would use Vx for a short field take off. Is this correct?
Many thanks for watching and the comment!! The Vx and Vy speeds have to be used after airborne, if you want to shorten your take off distance you can use an higher takeoff flap setting.. Let me know if you have more questions
@@PILOTCLIMB Got it, thank you for the reply
@@peterlazuric5641 You are welcome! Have a great day
tysm im working towards lapl
Can you please rethink the loud intro from this video. My speakers just lost 20% of their life span
Thanks for watching! The new videos have new Intro.. check that out.
Nice one. Thanks
You are welcome!! I'm glad you liked the video!! Have a great day
Great
Thanks for watching!
One thing i dont understand why is Vy best ROC speed? In a situation where i choose the Vx wont my vertical speed be higher if im pulling a bigger angle? I get that IAS will be lower yes, what confuses me is that in Vx Vertical Speed is higher or should be higher yet Vy is the one that is called Best Rate of Climb speed. Really dont understand.
VY has a higher FT/MIN rate, the VX has a greater FT/Distance rate.
@@PILOTCLIMB so where is my Vertical Speed higher? Vx or Vy?
@@laranja9921 It should be VY as your VSI reads in Feet per Minute.
ty brotha
that intro woke me up
It was a bit loud.. Sorry for that.. Thanks for watching!!
Don't hesitate to comment on the Video with your thoughts or questions!! I see you on the next one! Happy Landings..
How does Aircraft manufacturers determine what speed is for Vx and Vy?
@@ansonkwok723 Hey, I hope you are doing very well, Many thanks for watching my Video!! This is a very good question, however, I'm not a specialist on Aircraft Manufacturers procedures, so I don't know exactly what they use to determine the Vx and the Vy. My GUESS is that since the Vx and Vy change with multiple factors, such as Power Available (PA), Power Required (PR), weight, altitude and so on, the manufacturers combine flight data (obtained during flight tests) and math formulas in order to determine the Vx and Vy. Normally you can find in the Airplane flight Manual a table with the Vx and Vy tables, in the most sophisticated Aircrafts these speeds are calculated by the FMS using current and updated flight data.
Again, this is just my guess, so take it with a grain of salt since I'm not an expert on Aircraft Manufacturer.
I wish you a great day!