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   '''INTRO - Where it all have STARTED'''
   '''Intro - Where it all have started'''


   The beginning is always a delicate matter.
   The beginning is always a delicate matter.
  It often does take several restarts and new approaches.
    
    
   This has been true for this writing...
   It has been true for each one of us debuting and struggling with our plane,
  the same it has been to design the LILO-LOWI-Adrenaline "parcours"<ref>[ parcours              - french word for track, journey, route, course and even
                              of a new urban sport.]</ref> ...
  and the writing of this article just took several missed approaches !
    
    
   It has been true for the creation of the LILO-LOWI-Adrenaline "parcours" ...
   We all have been at that point, is it not ?
    
    
   and it is a painful truth for all the pilots debuting and struggling with their plane.
   Landing ... We all did manage to bring the plane back on the ground ...
    
    
   We all have been at that very start point, is it not ?
   [[File:RWY-Excursion at VQPR-292-978×549.png|978x549|frameless|Excursion at Paro (Buthan)]] [[File:800_Thirsty_Horses_-_screen-009.png|978x549|frameless|Missed Taxiway]]
    
    
   Trying to land in a satisfying manner, failing, and trying again, repeatedly.
   But doing it in a way that leave us satisfied demand a bit more practice
    
   and knowledge too.
  CFIT(Controlled Flight Into Terrain) on final approach, bumpy landing, complicating
  with Tortoise oscillations(1), Runway Excursions, are quite constant.


   [[File:RWY-Excursion at VQPR-292-978×549.png|978x549|frameless|Excursion at Paro (Buthan)]] [[File:800_Thirsty_Horses_-_screen-009.png|978x549|frameless|Missed Taxiway]]
   '''Never give up!'''


  I did not give up and tried with patience many flying configurations, weather,
  weight... The results was continuing average.
 
  My search for explanation led me to find an amazing explanation by a retired flight
  instructor ! Crazy simple sketches and just a few words but very clear !
 
  Of course, any student aerospace engineer will surely study the same with way higher
  detail. But pilots and engineers are different in this, and it is where Rob's
  explanation earn a strong point !


   '''Wrong Mind - Wrong Landing'''
   '''Landing is not <big><big>continuing</big></big> to descend until the ground - it is like a <big><big>controlled stall</big></big>.'''<small><small><ref>[ This is not an advice to seek real stall in real life.<br />Stall is a dynamic and complex situation, with pre-stall, deep-stall, several stall types (mainly 3), accelerated non-accelerated, and way more...<br />In RL, the reference you should follow, is your instructor.<br />Here the invitation is : in this simulator - training opportunity, let's go gaining experience on the edge, where the stall(s) lives.<br />A friend of mine after reading this got very sick, with red and black dots in the face and went sleepless... (kidding)<br />Please just do not drag me in pointless fights about "the right words" on this matter ! Thank you.<br />If you are feel yourself so interested by aerodynamic, please, go, study some and why not come back here down to share with us. </ref></small></small>


   - "...oh, it is just a simulator... With a bit of training, we should get there..."
   My 1st reaction was : "...no... no ways !"
    
    
   My best will and patience was there but something else was missing.
   But the doubt got quickly away !
  To be honest, results was way to be satisfying.
  Actually, It was not "getting there" at all !
    
    
   Flightgear community is really amazing, several users come spontaneously to help me.
   Figure out a little motorboat changing direction :
  (view from top)
    
    
   Suggestions, advises and demonstrations have come to be handy. It has allowed me to
   [[File:Landing - Explanation - 1.png|361x264px|frameless|Landing - Explanation - 1]]
  review my techniques and improve my skills.
  I am grateful for all the care and time theses users spent on me.
    
    
   But without putting any word in contrariwise, I was still needing to understand the
   blue - the '''''wished''''' direction ;
   why...
   red  - the '''''obtained''''' track.
    
    
   I was needing to understand how it does really and exactly work in order to not be
   · Ground : a car would obtain an almost immediate "turn".
   forced to rely on buttons (ILS) and approximations in order to do a good landing.
  · Water  : water is  elastic, you "drift" to the "wished" track.
   · Air    : even more elastic, more drift for the wished track.


 
   (view from Side)
   '''Never give up!'''
 
  I did not give up.
    
    
   Successive tries with, at each time, modified flying configuration, weather, weight
   Same rule,
   have led me to new questions and new search criteria.
   the plane do not '''''"change  immediately  direction"'''''
  because of the ground.
    
    
   Surely per chance, I have found  an amazing explanation given  by a  retired flight
   [[File:Landing - Explanation - 2.png|361x264px|frameless|Landing - Explanation help - 2]]
  instructor.
    
    
   The amazing part was in the great simplicity of his few sketches and the clarity of
   The plane accumulate energy during the descent.
   his words.
  When he touch the ground,
   the not completely "used" descent energy
  will tend to push the plane <big><big>'''''lower then the ground !'''''</big></big>
    
    
   It is of course not, a new knowledge. Any aerospace engineer student of course will
   Is it bad ?
  learn this at school.
  Well, that is why you have gear shock absorbers... but :
    
    
   But this is where Rob, actually earned a point : pilots and engineers are different.
   Gear shock absorbers cannot absorb any infinite amount of energy,  
   You do not expect pilots and engineers  to understand  the same things the same way.
   they have limits.
    
    
   And it is so crazy simple, that it can be shared here in 3 shorts paragraphs only !
   If the "remaining" energy is '''''still too much''''' :
 
  - or you have a crash and a belly landing ;
  Well, for copyright reasons i can not here just copy and past her as is, but... 
   - or a "bump bump bump" and then probably a crash too.<ref>[ Tortoise oscillations - Succession of quick oscillations where the plane will
  I can do the sketches of my own and add the explanation with my own words.
                            become quickly impossible to control and almost ever
 
                            resulting in a crash. ]</ref>
 
  '''Landing is not continuing to descend until the ground - it is a controlled stall'''
 
   My 1st reaction was like yours, probably : "...no... no ways !"
    
    
   But after a quick look at theses sketches and explanation, there was no more place
   [[File:Landing - Explanation - 6.png|361x264px|frameless|Landing - Explanation Help - 6]]
  for any doubt!
    
    
   Try to figure out how a little motorboat change direction :
   If this happen, FIREWALL! and Go Around !<ref>[ "Firewall! Firewall!  - Instruction/information given by one pilot to the other
                              where the thrust lever  is  beaten at the physical edge,
                              resulting  in  engines delivering  the absolute maximum
                              thrust power !
                              It is an extreme evasive maneuver that should only last
                              a few seconds. (about 6 ~ 8 for most engines).
                              It is one step beyond then the  "unleash  the  beast" !
                              Engines must come back to normal thrust levels in order
                              to avoid irreversible damages. ]</ref>
  If you do not, and you survive, you are going
  to be known the rest of your life as '''''Captain Kangourou'''''.
    
    
   [[File:Landing - Explanation - 1.png|361x264px|frameless|Landing - Explanation - 1]]
   Another crash will happen if you stall from too high.
    
    
   1. little motorboat - with no steering - the OBTAINED track is the WISHED track.
   [[File:Landing - Explanation - 5.png|361x264px|frameless|Landing - Explanation Help - 5]]
    
    
   2. little motorboat - steering to babord - blue : the WISHED track
   Gear shock absorbers can <big><big>'''''not'''''</big></big> absorb this.
                                              red  : the OBTAINED track
 
  <big><big>'''The Proper way'''</big></big>
 
  Rob was writing something like ... :
  ----------------------------------
  "This energy that in the air is your friend,
  on the ground become your enemy".
  Leave this energy there, exhaust it !"
    
    
                                              Water is more elastic then ground and thus
  [[File:Landing - Explanation - 3.png|361x264px|frameless|Landing - Explanation Help - 3]]
                                              reactions take longer to sort out effect.
    
    
                                              This "longer" let you feel you are drifted
  That is why we "round up", "we retard", "we flare".
                                              a bit away from the WISHED track.
  Landing is never direct.
    
    
   3. Plane            - steering to babord - blue : wished track
   When descent energy is "ended" then you become
                                              red  : obtained track
  able to land, brake, steer and control your plane...
 
  <big><big>'''So, what is the "proper height" to stall ?'''</big></big>
 
  "Any height that can be handled by the landing
  gear shock absorber."
  "But, ideally, from 'Zero' feet above RWY."
    
    
                                              Really it like the motorboat
  [[File:Landing - Explanation - 4.png|361x264px|frameless|Landing - Explanation Help - 4]] 
                                              In the Air the reactions just take longer.
 
  The butter landing !


  <big><big><big>'''''Conclusion'''''</big></big></big>


   Same Logic in the side view for the plane...
   Stall '''''is''''' at the "edge" of the "flying envelope", '''''not''''' in the middle of the safe average.
    
    
   [[File:Landing - Explanation - 2.png|361x264px|frameless|Landing - Explanation help - 2]]
   That is why my landings was not so good.
  Knowing '''''the edge''''', the limits of our plane '''''is crucial'''''.
    
    
   The accumulated energy of the plane in the direction of the descent is not going to  
   And this led me to the idea of a place where we could try, discover and test our plane, going at the edge, to the limit.
  stop when meeting with the ground !
    
    
   This energy need to be used/transformed and is going to generate all the bad effects
   Very low level flight, at '''''relatively high speed''''', we have tried, the '''''Adrenaline is at the <big>Rendez-vous</big> !'''''
   we struggle to dom as debutante.
 
  <big><big><big>'''''LILO-LOWI-Adrenaline was born ! '''''</big></big></big>
 
  <big><big>'''''But why a challenge for small planes and not big planes or military planes ? '''''</big></big>
 
   Does theses names from the real life are known to you  ? :
    
    
   About this, Rob wrote :
   Robert (Bob) Pearson, Tadeusz Wrona, Jerzy Szwarc, Chesley Sullenberger,
  Jeffrey Skiles, Carlos Dardano and Dionisio Lopez.
    
    
   This energy that in the air is your friend and keep you alive, on the ground become
   They should !
  you enemy.
    
    
   You can not just leave it there. You have accumulated it - you have to exhaust it !
   These are all heroes where with their outstanding pilot skills they have saved
  lives !
    
    
   [[File:Landing - Explanation - 3.png|361x264px|frameless|Landing - Explanation Help - 3]]
   - "Gimli Glider, Captain Robert (Bob) Pearson, Air Canada flight 43, at Manitoba,
      zero loss and minimal damage to the plane ;
  - Captain Tadeusz Wrona (+officer Jerzy Szwarc) - belly landed the B767 with no
    injuries to anyone (LOT Polish Airlines Flight 16, Nov 2011) ;
  - Captain Chesley Sullenberger (+officer Jeffrey Skiles) accomplishing that
    controversial but impossible landing on the Hudson river (US Airways Flight
    1549);
  - Captain Carlos Dardano (+officer Dionisio Lopez) achieve a dead stick landing
    on the grass levee at Michoud (New Orleans) May 1988 (Taca flight 110) ;
    
    
   Only then you become able to land ...and by landing i do mean, able to brake, steer
   There are of course several more of them.
  and control your plane on land !
 
 
  '''A new approach'''
 
  This was totally addressing the questions i had !  Plus, it was clearly explaining
  the why of my landing failures, and even bringing answers to new coming questions.
    
    
   Just one question was not addressed :
   But what all off them have in common, is the countless hours of flight in small
  - ok, I exhaust the "flying energy". So i am going to stall ...from which height  ?
   plane with the habit to take their small plane at the edge !
 
   With the same clarity, the Rob explanation say this :
  - ideally from ZERO feet over the RWY.
  [[File:Landing - Explanation - 4.png|361x264px|frameless|Landing - Explanation Help - 4]]


   - but, maximum from as height as what shock absorber can absorb.
   <big><big>'''''Rendez-vous at the Start !'''''</big></big>


   [[File:Landing - Explanation - 5.png|361x264px|frameless|Landing - Explanation Help - 5]]
   [[File:Small-fgfs-20200521095013.png|2048x1022|none|START]]
 
  ...
 
  [[File:Landing - Explanation - 6.png|361x264px|frameless|Landing - Explanation Help - 6]]
  ...


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  Have fun,
  LoCall




   
[[User:LoCall/LILO-LOWI-Adrenaline/Download | Next page : LILO-LOWI-Adrenaline - Download > ]]
  ...My very first Title idea was '''''"DISENGAGE AUTO-PILOT"'''''.
  For copyright reasons i can not past it here as is, but... I can do a sketch of my
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Revision as of 12:56, 3 June 2020

LILO-LOWI-Adrenaline

LILO-LOWI-Adrenaline

Climb from "Corna" to "Liscidini"

Clock Around Santa Giustina Lake

3/4 Clock Around "Santa Giustina Lake" 

  Intro - Where it all have started

  The beginning is always a delicate matter.
  
  It has been true for each one of us debuting and struggling with our plane,
  the same it has been to design the LILO-LOWI-Adrenaline "parcours"[1] ...
  and the writing of this article just took several missed approaches !
  
  We all have been at that point, is it not ?
  
  Landing ... We all did manage to bring the plane back on the ground ...
  
  Excursion at Paro (Buthan) Missed Taxiway
  
  But doing it in a way that leave us satisfied demand a bit more practice
  and knowledge too.

  Never give up!

  I did not give up and tried with patience many flying configurations, weather, 
  weight... The results was continuing average.
  
  My search for explanation led me to find an amazing explanation by a retired flight 
  instructor ! Crazy simple sketches and just a few words but very clear ! 
  
  Of course, any student aerospace engineer will surely study the same with way higher 
  detail. But pilots and engineers are different in this, and it is where Rob's
  explanation earn a strong point !

  Landing is not continuing to descend until the ground - it is like a controlled stall.[2]

  My 1st reaction was : "...no... no ways !"
  
  But the doubt got quickly away !
  
  Figure out a little motorboat changing direction : 
  (view from top)
  
  Landing - Explanation - 1
  
  blue - the wished direction ;
  red  - the obtained track.
  
  · Ground : a car would obtain an almost immediate "turn".
  · Water  : water is  elastic, you "drift" to the "wished" track.
  · Air    : even more elastic, more drift for the wished track.

  (view from Side)
  
  Same rule,
  the plane do not "change  immediately  direction" 
  because of the ground.
  
  Landing - Explanation help - 2
  
  The plane accumulate energy during the descent. 
  When he touch the ground, 
  the not completely "used" descent energy 
  will tend to push the plane lower then the ground !
  
  Is it bad ?
  Well, that is why you have gear shock absorbers... but :
  
  Gear shock absorbers cannot absorb any infinite amount of energy, 
  they have limits.
  
  If the "remaining" energy is still too much :
  - or you have a crash and a belly landing ;
  - or a "bump bump bump" and then probably a crash too.[3]
  
  Landing - Explanation Help - 6
  
  If this happen, FIREWALL! and Go Around ![4]
  If you do not, and you survive, you are going 
  to be known the rest of your life as Captain Kangourou.
  
  Another crash will happen if you stall from too high.
  
  Landing - Explanation Help - 5
  
  Gear shock absorbers can not absorb this.

  The Proper way

  Rob was writing something like ... :
  ----------------------------------
  "This energy that in the air is your friend, 
  on the ground become your enemy".
  Leave this energy there, exhaust it !"
  
  Landing - Explanation Help - 3
  
  That is why we "round up", "we retard", "we flare". 
  Landing is never direct.
  
  When descent energy is "ended" then you become 
  able to land, brake, steer and control your plane...

  So, what is the "proper height" to stall ?

  "Any height that can be handled by the landing 
  gear shock absorber."
  "But, ideally, from 'Zero' feet above RWY."
  
  Landing - Explanation Help - 4   
  
  The butter landing !

  Conclusion

  Stall is at the "edge" of the "flying envelope", not in the middle of the safe average.
  
  That is why my landings was not so good. 
  Knowing the edge, the limits of our plane is crucial.
  
  And this led me to the idea of a place where we could try, discover and test our plane, going at the edge, to the limit.
  
  Very low level flight, at relatively high speed, we have tried, the Adrenaline is at the Rendez-vous !

  LILO-LOWI-Adrenaline was born ! 

  But why a challenge for small planes and not big planes or military planes ? 

  Does theses names from the real life are known to you  ? :
  
  Robert (Bob) Pearson, Tadeusz Wrona, Jerzy Szwarc, Chesley Sullenberger, 
  Jeffrey Skiles, Carlos Dardano and Dionisio Lopez.
  
  They should !
  
  These are all heroes where with their outstanding pilot skills they have saved
  lives !
  
  - "Gimli Glider, Captain Robert (Bob) Pearson, Air Canada flight 43, at Manitoba, 
     zero loss and minimal damage to the plane ; 
  - Captain Tadeusz Wrona (+officer Jerzy Szwarc) - belly landed the B767 with no
    injuries to anyone (LOT Polish Airlines Flight 16, Nov 2011) ;
  - Captain Chesley Sullenberger (+officer Jeffrey Skiles) accomplishing that 
    controversial but impossible landing on the Hudson river (US Airways Flight 
    1549);
  - Captain Carlos Dardano (+officer Dionisio Lopez) achieve a dead stick landing
    on the grass levee at Michoud (New Orleans) May 1988 (Taca flight 110) ;
  
  There are of course several more of them.
  
  But what all off them have in common, is the countless hours of flight in small
  plane with the habit to take their small plane at the edge !

  Rendez-vous at the Start !
START
  Have fun, 
  LoCall


Next page : LILO-LOWI-Adrenaline - Download >

  1. ↑ [ parcours - french word for track, journey, route, course and even of a new urban sport.]
  2. ↑ [ This is not an advice to seek real stall in real life.
    Stall is a dynamic and complex situation, with pre-stall, deep-stall, several stall types (mainly 3), accelerated non-accelerated, and way more...
    In RL, the reference you should follow, is your instructor.
    Here the invitation is : in this simulator - training opportunity, let's go gaining experience on the edge, where the stall(s) lives.
    A friend of mine after reading this got very sick, with red and black dots in the face and went sleepless... (kidding)
    Please just do not drag me in pointless fights about "the right words" on this matter ! Thank you.
    If you are feel yourself so interested by aerodynamic, please, go, study some and why not come back here down to share with us.
  3. ↑ [ Tortoise oscillations - Succession of quick oscillations where the plane will become quickly impossible to control and almost ever resulting in a crash. ]
  4. ↑ [ "Firewall! Firewall! - Instruction/information given by one pilot to the other where the thrust lever is beaten at the physical edge, resulting in engines delivering the absolute maximum thrust power ! It is an extreme evasive maneuver that should only last a few seconds. (about 6 ~ 8 for most engines). It is one step beyond then the "unleash the beast" ! Engines must come back to normal thrust levels in order to avoid irreversible damages. ]
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