Justo después del amanecer del 22 de mayo, Facebook alcanzó otro hito emocionante e importante en el proyecto Aquila –completamos exitosamente nuestro segundo vuelo a escala real de la aeronave–. Esta voló por 1 hora y 46 minutos y aterrizó a la perfección en nuestro sitio designado.
Para poder lanzar la aeronave antes del amanecer, que ese día fue a las 5.15 a. m., estábamos en la entrada del Campo de Pruebas Yuma (YPG) en Arizona desde las 12.30 a. m. Mientras que unos miembros de nuestro equipo empezaban a abrir el hangar y levantaban la aeronave hasta su base de despegue, el resto de nosotros preparábamos las estaciones de control en tierra e ingeniería. Prácticamente todos revisamos las predicciones sobre vientos, constantemente.
El segundo vuelo de Aquila tuvo en cuenta todas las lecciones aprendidas durante nuestro primer vuelo. Antes de este, incorporamos una serie de cambios a Aquila que incluyeron:
La adición de spoilers a las alas, que incrementan resistencia y la propulsión en el acercamiento al aterrizaje.
Incorporamos cientos de sensores para recolectar más datos
Modificamos el software de piloto automático
Integramos nuevos radios al subsistema de comunicaciones
Cubrimos la aeronave con un acabado más liso
Instalamos un mecanismo de detención del propulsor horizontal para poder tener un aterrizaje exitoso.
A las 5-27 a. m., cuando el sol estaba apenas encima del horizonte comprobamos que la aeronave pasara todas nuestras verificaciones anteriores al vuelo: los vínculos de radio (redundantes tanto para la carga como descarga y con ancho de banda extra) eran funcionales, las superficies de control y los spoilers estaban libres y eran correctos y los cuatro motores respondían adecuadamente a los comandos.
Tras completar nuestra lista de verificación anterior al vuelo, nuestra corta espera fue premiada con poco viento medido y poco viento en las predicciones del clima. Un breve sondeo de nuestros pilotos e ingenieros nos dio luz verde para el lanzamiento. La velocidad de despegue estuvo calculada en 43.45 km/h, lo que notificamos a nuestro remolque. El equipo observó de cerca todas las pantallas, esperando la seña que confirmara que el piloto automático hubiera tomado el control y que la aeronave ya estaba subiendo, lejos de su base de despegue.
El lanzamiento fue normal. También se hizo evidente prontamente que todos los sistemas funcionaban normalmente: la corriente del motor, el seguimiento a la velocidad del aire, los indicadores de dirección, vínculos de radio y GPS diferenciales mostraban todos comportamientos normales. La única sorpresa que tuvimos fue del tipo alegre: la tasa de ascenso –54.86 mt/s– fue casi el doble de la de nuestro primer vuelo, lo que atribuimos a los múltiples ajustes de Aquila –puntualmente el acabado más liso– que implementamos desde el primer vuelo.
Así, continuamos nuestro ascenso hasta los 914 metros, esperando todas las señas que mostraban el buen estado de la aeronave antes de que esta excediera nuestro rango de vuelo planeado. Con todas las telemetrías “en negro”, continuamos subiendo. Por diseño, Aquila se toma su tiempo: asciende lentamente, desciende incluso más lento y cuando vuela con el viento no lo hace a más de 16-22 km/h respectivo al suelo. Hemos diseñado Aquila de esta forma porque su fin es quedarse en la misma zona por largos periodos de tiempo proveyendo acceso a internet. Aquila se alimenta de energía solar y es extremadamente eficiente –funciona con la electricidad equivalente de tres secadores de pelo–.
El segundo vuelo se trataba solo acerca de datos. Volamos para surtir largas pruebas a una velocidad, inclinación y altitud constantes para medir la resistencia de la aeronave. Los datos de estos “trim shots”, como los llamamos, serán usados para refinar nuestros modelos aeronáuticos, lo que nos ayuda a predecir mejor el consumo energético y, así, optimizar el uso de nuestras baterías y la ubicación de los paneles solares. También instrumentamos extensamente la estructura del avión, agregando cientos de sensores a este para entender cómo la forma de Aquila responde al vuelo en tiempo real. Estos incluyendo cientos de medidores de esfuerzo y tres ejes de medición de inercia (IMU). Estas herramientas nos sirven para verificar y refinar nuestro modelo estructural, lo que predice la firma estática de la aeronave –además, diseñada para ser muy flexible y responder tanto a los vientos como a las maniobras–.
Durante todo el vuelo, continuamos monitoreando la resistencia creada por los nuevos spoilers de Aquila en diferentes ángulos. Estos spoilers son estructuras móviles en el ala de una nave que le permiten incrementar la resistencia para reducir la velocidad y la propulsión. También probamos la fuerza de señal de los dos vínculos radio desde varios puntos angulares.
Después de probar el algoritmo de aterrizaje con una versión elevada, hemos puesto la nave a hacerlo de forma completa, y exitosa, en el lugar designado.
Aquila no tiene un mecanismo de aterrizaje en el sentido tradicional. En cambio, aterriza sobre bases de Kevlar unidas a la parte baja de las cápsulas del motor. Nuestro razonamiento para esto se debe a dos razones: primero, aterrizamos a una velocidad respecto al suelo y nos acercamos al suelo de forma muy lenta, para que podamos disminuir el peso y la resistencia en las riostras y ruedas; y, segundo, porque mucho del peso de la aeronave está concentrado en las cápsulas del motor, pues es acá que están instaladas las baterías. Una vez las baterías han tocado suelo, detener el descenso del resto de la aeronave no representa un gran esfuerzo para la estructura.
Para la base de aterrizaje creamos un círculo de 152 metros de gravilla de unos 15 centímetros de profundidad con la consistencia de arena gruesa. El vuelo de Aquila es autónomo salvo por intervenciones manuales, como las necesarias para alinearse con el viento. Por lo tanto, justo antes del aterrizaje, el equipo de vuelo carga un plan de aterrizaje basado en la dirección del viento para que la aeronave aterrice con el viento y respetando el límite de vientos cruzados.
Al aterrizar Aquila sigue un camino de descenso con inclinación de 3 grados que empieza en el aire y termina en el piso. Una característica de este tipo de aeronaves es la baja resistencia –es la única forma posible de volar con la energía limitada que provee la luz solar–. Pero mientras la resistencia es el archienemigo del vuelo, ella es la primera aliada del aterrizaje. Los spoilers que agregamos a la aeronave son controlados por el piloto automático. Cuando este siente que la nave excede la inclinación, cierra los spoilers. Cuando siente que está pode debajo, los abre más. Mientras tanto, como durante todo el vuelo, el piloto automático sube y baja su punta usando elevons, que ayudan a incrementar o reducir la velocidad de vuelo.
A unos segundos del aterrizaje, el piloto automático detiene los motores del avión y los bloquea automáticamente. Se bloquean así para evitar dañarlos durante el aterrizaje. Todos los motores están detenidos, pero solo uno de los propulsores está horizontal. La aeronave hizo contacto gentilmente en la superficie de aterrizaje y se detuvo en unos 10 metros. Fue absolutamente perfecto. Igual que cuando se conduce un auto en gravilla, aterrizar la aeronave en este material causa apenas unos pocos y fáciles de reparar rayones. En todos los otros aspectos, Aquila aterrizó en la mejor forma.
Desde nuestra estación de ingeniería, en las cercanías, el equipo de Aquila vimos una transmisión de video que nos mostraba la vista desde el aire, tomada por nuestro helicóptero de seguimiento. Tuvimos asientos de primera fila para ver a la aeronave deslizarse suavemente hasta la quietud en una nube de polvo –y ver a la estación de ingeniería levantarse en aplausos–. Después del aterrizaje de Aquila, el equipo de YPG informalmente bautizó el área de aterrizaje como “Playa Aquila” –¡nombre que nosotros estuvimos orgullosos de adoptar!–.
Sobra decir que el equipo entero estaba sumamente feliz con estos resultados. Nuestro objetivo de conectar a la gente con aeronaves de vuelo a gran altitud y con energía solar es valiente, pero hitos como el marcado por este vuelo hace que meses de arduo trabajo valgan la pena. Por eso, es particularmente gratificante, que las mejoras hechas según el desempeño de Aquila en su primer vuelo hicieran una diferencia significativa en este segundo vuelo.
El PHU-111 Wacom Clipboard es un smartpad que permite a los usuarios rellenar y firmar documentos al estilo antiguo, usando tinta en formularios de papel normales y convertirlos a formato digital en tiempo real.
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Many news arrives in Jinxingfang City first, and then radiates to the entire Lanning Prefecture.What surprised Shao Nan most was that the entire attic was integrated into one.
This is equivalent to Shao Nan comprehending the new way of flame based on his own perception.The key is that the food and wine in Shenmeng Restaurant are not ordinary.
This investment is absolutely huge, what is the plan The test of the fire of passion.Not to mention Huixu Zhenyi, even the immortals who have just ascended to the immortal world are helpless.
White.He suddenly realized that in front of him was a True God of Transformation, who could crush himself to death with just a few fingers.Perhaps in response to Zhou Yuliu s words, three figures rushed towards Yuewu Mountain at the same time.
Look at her face , It should be a girl who was once very beautiful.The five hundred fire control geniuses who suddenly lost the pressure suddenly collapsed to the ground, and most of the fire control geniuses passed out immediately.
Huo Linglong roared again, looking at Shao Nan with determination.The general exercises focus on the improvement of true qi and combat power, but the Bibo Huanyue clan relies on illusion to fight, and has higher requirements for spiritual consciousness.
A strange energy entered the body along the pores, Shao Nan felt very strange.Seeing Lan Yin burning, his eyes turned red.How did this happen Half of the fire controlling geniuses have disappeared.
So that s the case, it s really not suitable to delay.There is a possibility of injury Seems like a really big deal.
Mysterious Xiaocao has been completely defeated by Shao Nan , can only be explained in a childish voice.Shao Nan was even more surprised than Lan Yin.He just said it casually just now, but he didn t expect it to be true.
When my colleagues arrested him, he always looked like this, as if he had lost his soul and showed no resistance at all.No wonder the doctor next door looked familiar. It turned out to be Pan Chengchi.
But Du Heng didn t have that much money, and he didn t even have a mobile phone, so Yao Youshi came forward and transferred 30,000 yuan to Wu Yueqing s mobile Weight Asking Secret Friends My Loss S9n8c4 Keep My phone.With these two medicines, you can ensure that he is sent to the school doctor s office and then think of other solutions.
But Du Heng, who was sitting in the back, couldn t help but darken his face when he saw the dialectical process that Gui Peisheng had explained.Yes, you have to prepare 5fm92jt Year Weight New Struggles Chrissy Metz Lessons Loss From for the postgraduate entrance examination this year.
Du Heng nodded gently while eating, but then he suddenly changed his tone and asked, How did you meet Tingting Song Guangjiong said quickly, My family She is also from Jinzhou, Ting the year before last.
When Du He entered the school, we met when we held a hometown reunion.The patient on the bed got hemiplegia three months ago and went to the hospital to lie down.
So if he doesn t have any special opportunities in the future, his life will be like this.Du Heng followed Dr. Xing and asked softly, Has a heart disease She said she had a heart disease, but we Bian hasn t had time to do a check up, and she is now resisting us checking her.
Luo said calmly, Every inch has its strengths and weaknesses.At the very least, starting from elementary school, the amount of exercise of students increases, and some students have problems with their shoes, so boys generally have foot odor.
I met him once. I should have seen him like this Du Heng himself was a little unsure.It s not that the previous mentors didn t set a goal for him, it s that every time after setting a direction according to the mentor s expertise, the goal would be aborted before it had time to start, and then it would continue to wait for the next mentor to determine the direction, and then die again.
And this situation has cycled four times. He didn t know who the next mentor would be, so he didn t know the mentor s personality and habits, so he didn t dare to determine a research and study direction by himself.
Second, after I mentioned my idea of taking the postgraduate entrance examination, my uncle strongly recommended that I take your postgraduate entrance examination.He left his father in law behind in the medicine shop and started to do business.
This is also a typical product of the times created by the rapid development of society.I will accompany you tomorrow. You go together. Du Heng glanced slightly and said in surprise, Are you kidding me Who are the people who are training you How could they be involved in such a thing Seeing that Du Heng didn t believe it, Wu Shengnan chuckled softly, I can tell you, you doctors may really be disgusted with this kind of thing, and you don t believe it from the bottom of your heart.
Nux vomica has the effects of unblocking meridians, relieving pain, dispersing stagnation and reducing swelling.After talking for less than a minute, the old man tapped the cigarette pot in his hand gently on the sole of his shoe, then stood up and went to the house to get a few small benches.
Du Heng looked at the old lady speechlessly, but he could only say patiently, Auntie, sit up and let me know.Thirdly.
Thirdly.
Lao You said as he glanced at Du Heng, hesitated for a moment and then shut up.
For external use, only about seven or eight grams can be used.
just don t believe the rumors from the outside easily.Now that Xiao Min has been born, and Xiao Min has met his biological father, Xinran is even more impossible.
The doctor smiled disapprovingly, Unless you are a mentally ill patient, this kind of situation will never happen to normal people Mental patients often have such abnormal phenomena.My little cousin is so cute The little guy looked at the people inside and sighed.
The little guy stared at mommy s profile with a pair of big obsidian eyes and praised her.He doesn t deserve to be the child s father at all.
I have never seen a man who enjoys being a father so much He treats other people s bastards as treasures.Only this daughter made him feel relieved. He glanced again at Li Shaoting, who was sitting on the sofa playing with his son.
She pretended to smile lightly How could it be I just lowered my head just to calculate how long it had been since we last met.What, Xiao Chen, you said Xiao Min was kidnapped by two women Mu Xinran said nervously.
The sound sounded cute like grandma s. A pair of big eyes stared at the crystal chandelier with curiosity.Gu Ruoyi glanced at Li Shaoting with a faint indifference, and then restrained herself.
No, it s not me, it s really not me Zhao Ya thought and wanted to continue to defend herself.Li Shaoting picked up a piece of bread, then scooped out a little white butter and put it on the piece of bread, and said sarcastically, You can t be better either.
You should show some respect to this little boy The yellow haired man showed a disgusting smile.Everyone walked out, leaving Li Shaoting alone to stay with Gu Ruoyi.
After a while, the ward. Yan, what do you think happened to my mother She doesn t seem to remember us I guess it s the sequelae of the surgery Lin Yan put his hands in his trouser pockets and sighed.Why is Xinran drinking here Mu Xinran shook her head, then smiled bitterly, and said mockingly No.
Her life blueprint has been planned. Right now is an opportunity.When it reached out to take the document, she pretended to unconsciously hand the document to her other hand, avoiding his stretched out hand.
Li Shaoting, who was reading the document, noticed a small figure walking in from the corner of his eye.Li Shaoting sat on the blanket and looked at the woman on the bed lovingly.
Mother Ye smiled and nodded, then looked at her back intently, her mood complex.Gu Ruoyi shrugged, I never thought that something like that would happen on the day we started shooting Say Well, what do you need me to Body Coffee Lose Your Transform Weight To Method The Wxpb91rlr In Ultimate do Tony, from time to time, looked back at Xiao Chen sitting next to Gu Ruoyi, who was exactly the same as Li Shaoting.
Have you been caught After what happened to Lu Anbai, Gu Ruoyi now doubts whether someone has been caught as long as someone goes missing.Li, if you don t mind, we can go to the hotel to discuss cooperation Li Shaoting frowned coldly, and a dangerous edge poured out of his eyes.
Just now he listened to my advice and accepted the old rule of not fighting or knowing each other, so Lord Han After getting a secret letter from my friend, I made an impromptu decision to immediately go to the Middle earth Divine Continent.Jun Qian is focused on nothing else, just listen to it if you like it, while Chen Ping an thinks too much, remember it if you like it, and Fit Your Tru Into Daily Regimen Fitting Za7 Keto Gummies Keto chew it out.
Strangely enough, Sect Master Han seems to have an old friend in the Middle earth Divine Continent What he said just now was My friend who signed up for his account is not weak at all.The little girl chose a few Ambani His Ss1h Achieved The Weight Plan Anant Ultimate Loss How books. She didn t care about the paper material, the official engraving of the palace, or the seal of the book on the wall.
When Huang Lin wrote on his palm, the Dharma appeared. With Gao Ju s hand, a golden talisman appeared in the palm of his hand.After all, it is better to lean against a big tree to enjoy the shade. My master and his wife are like this, and so is the old god.
Liu Qingfeng laughed and said, Mr. Chen, have you ever thought that I am actually very jealous of you Chen Ping an asked without comment, I know very well Mr.With a wave of his sleeve, the rain sword energy spread out in all directions, spreading out Help The Lose Acid La0 Behind Amino Llysine Weight Surprising You Truth Really Can The in a circle with Pei Min standing on the top of the mountain as the center, isolating the young man s small world horizontally.
In addition, there are also incomes from Niujiaoshan Ferry, Baofengzhai, and a large amount of income from Lotus Root Blessed Land, which is the bottleneck for high quality products.Under the eaves of the thatched cottage, there was an old dog, Lu Chen , lying on his stomach. Occasionally, he looked How Strategies With Jonah 8p2zk6g1 Found Celebrities Loss Weight Similar Hill Success up and glanced at Lu Chen, who was sitting there.
now that guy dares to say that except for his hometown, no one in the entire Beiyue Loss Weight Her Success Pauline Journey To Chalamets Secrets Bvh3 realm can knock him down with one punch.Naturally, they are enviable, and at the same time, they are even more fearful. It s just that no one believes that the nine children are not only sword cultivators who have given birth to flying swords, but they are also the embryos of sword immortals among sword cultivators.
He patted Jiang Shangzhen s arm but said nothing. Jiang Shangzhen patted the back of Chen Pingan s hand and said with a smile Jiang Shangzhen still needs mercy That s too pitiful.Even if there was no Bai Ye, if it were someone else who was lucky enough to have Su Zi in the world hundreds of years ago, and then walked on the road in front of Su Zi, I think Su Zi would still be honest and sincere, and write another post for that person, and he would also feel free to do so.
It is another ancient thing In his robe, the Yin God Han Yushu stood in front of Yun Ao, holding a small mallet.Jiang Shangzhen hesitated for a moment. When he met Chen Ping an again in Taiping Mountain, Jiang Shangzhen was in a dilemma.
Now that Old Man Yang is no longer in the town and has escaped from the ten thousand year prison of painting, Chen Zhuoliu is the only one in Longzhou who has noticed this clue.He sighed, The gift is too heavy, but the affection is even heavier. Then he turned to Chen Ping an and complained, Mr. Chen, come to Tianque next time.
You drink yours. Yao Xianzhi looked at it for a while, but he couldn t see it. As Does Treatments G734j Loss Cover Weight Unitedhealthcare For Semaglutide soon as I walked out, I concentrated on drinking without thinking about anything, but felt a little sleepy.Zheng Su wouldn t be so sentimental if he hadn t been so sentimental about Daquan Yao. Chen Pingan clenched his fists on his knees, relaxed them slightly, nodded, and asked, Looking at the way the Northern Jin Dynasty built monuments first and then blocked the road, are they determined to urge the emperor to move north You Daquan What does His Majesty mean by that Will it be too difficult to be the ruler of the palace As long as the Jinhuang Palace moves north, it will not be difficult for Zheng Su to be a human being.
With such a large territory covering thousands of miles, it is impossible for no news to come out after disappearing into thin air.The people and scenery in his heart turned into a gorgeous picture that changed from white drawing to color painting.
It will not be heard well. When Mr. Pei Min becomes invincible in the future, he will He had no shame to say that he had actually practiced swordsmanship with his husband back then.Xu of Qingfeng City. A female cultivator at the bottom of the Zhengyang Mountain Patriarch Hall did not need to fight with anyone at all.
It comes from the fact that every moonlit night, the ancient ink will appear on it. There was a little Taoist who was walking like a fly and asked him.Pei Min finally Weight Kardashian Body Transform With Loss Yh4rqgm Secrets Khloe Your understood the agreement he made with Zou Zi. In fact, the people Lu Tai needed to kill in the future were never far away.
The old man fell to his knees and prostrated on the ground, Li Huai, please, just agree to practice with me.They managed to escape into the Gyeonggi territory and took refuge, but now they are unable to become the center of the temple or the important officialdom.
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