From FlightGear wiki
Climb from "Corna" to "Liscidini"
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" ... 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 ... 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 and it this, and it is where Rob explanation earn a strong point !
Landing is not continuing to descend until the ground - it is a controlled stall
My 1st reaction was : "...no... no ways !" But the doubt got quickly away ! Figure out a little motorboat changing direction : (view from top) 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. 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. If this happen, put MAX THRUST and Go Around ! 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. Gear shock absorbers can 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 !" 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." The butter landing !
A new approach
So, I was failing to have proper landings because I was looking for a solution in the average of the flying conditions whereas it was at the extreme edge, where the plane start to stall. And this, for me, have been game changing. I have learned the only way to master my chosen plane was exploring its limits.
How is "this" related with LILO-LOWI-Adrenaline and Fun ?
LILO-LOWI Adrenaline is a theater where to explore and train your pilot skills "at the edge." "...No one will do this "in the real life..." Actually, this is not so sure. In real life, pilots have to train to react appropriately in extreme situations. And yes, you already got it, they do it not in the real plane but in simulators !
Well, here in Flightgear, it does seems we already have the simulator. What still was missing was a theater to train at the edge... Now, with LILO-LOWI-Adrenaline, we have it !
One could argue within himself, "yes but for the small planes only..." Well, small planes is the best way to learn the "habits" that save your life when later you fly a "big plane". All the real life pilots : - "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) ; all off them have, of course several things in common, but one have called for my attention : countless hours of flight in small plane with the habit to take their small plane at the edge. If you still have doubts, think, is their out any aviation company or flight school that spent heavy money to train edge or extreme situations ? Not really, some company do it but they have started only after already lost so many lives !
So, this is what have driven me. The creation of a theater where we all could exercise at the extreme and with a bit of chance and perseverance become better "virtual" pilots.
My 1st idea was to call it "Disengage Auto-Pilot" . But the first tries run by myself and others in the meanwhile I was designing the parcours(3) have revealed to be so fun and thrilling that the name come by itself LILO - LOWI - Adrenaline
Rendez-vous at the Start !
Have fun, LoCall
1) Tortoise oscillations - Succession of quick oscillations where the plane will become quickly impossible to control and almost ever resulting in a crash
2) "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.
3) parcours - french word for track, journey, route, course and even of a new urban sport.