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.
Con la actual tendencia tecnológica a la miniaturización, el diseño y construcción de los nanosatélites acelera su paso en México, gracias al talento y entusiasmo de nuevas generaciones.
, las organizaciones se enfrentan a retos críticos en la gestión de sus cadenas de suministro. Andrea Brody, directora de marketing de Riskonnect, destaca que la forma en que las empresas gestionan el riesgo hoy es fundamental para adaptarse a un entorno inestable que, según muchos líderes, no se estabilizará hasta después de 2024.
Si este año no es la excepción y las ventas se incrementan, es importante estar preparado desde un comienzo, tomando en cuenta los consejos de Microsip.
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Qunxing Capital disclosed to the public that it had sold X, which had just taken over the company a few months ago, and the person who took over the deal was actually Merrill Lynch.The difference in power consumption between the two is measured in tens of millions of times.
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massacre Thunderbirds fell at the Shadow Swordsman s feet one after another.Due to the advent of the evil disaster, adventurers and legions were everywhere, as well as refugees fleeing to the city with their families.
The ultimate skill book In order to get this thing, he spent a lot of time and countless energy, and finally got it luckily.Although Mingyue City is not considered important among the large number of supporting forces, it is still an ally , which means it has autonomy.
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Yes, father Lou Wu suppressed his excitement and bowed in response.In other words, Great Monk Shi Dong is not the owner of the Aurora Swift Shadow Boat , its owner is someone else.
Without the protection of the formation, the entire Baidi Zongji was completely exposed to the attacks of ten Thunder Cloud Techniques.The secret method of Sword Intent Climbing to the Sky is used, and the spiritual power in the Nascent Soul s Dharma Form continuously enters the Four Characters and One How to Lose 30 Pounds with a Natural Mounjaro Recipe for Weight Loss This Year Sword.
I can agree to this, but it will only be used in the hell cave Brother Lou smiled slightly and did not refuse.Even if the space reception array is cracked at that time, it will still be a backward technology.
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But the explosion happened inside the cave. The core of the formation was swept by the shock wave, and some fragile materials were destroyed.The Immortal Slaying Sword Formation is the top legendary sword formation in the world of immortality.
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Wang He was about to break through the formation, but his expression changed slightly, and the aura on his body suddenly exploded.But inside the energy light cocoon, the two explosions still failed to explode the energy light cocoon immediately.
Not to mention the fact that he has five Nascent Souls, even if he doesn t use five Nascent Souls and only uses a small part of his 191 brains, he can still produce a spell from each brain.This one on one guidance is even more important than passing on experience.
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It s not that Lou Wu has never seen good things. He has been practicing since he was a child and has a father who is a great monk.An energy based flying sword containing the sword intention of the great monk kept slashing at the huge compass.
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Sword Master Brother Lou exclaimed in shock. Li Yuanba also recognized the person who came, it was the Jian Lao from Jianyi Chongxiao Pavilion.Li Yuanba took the Gabourey Sidibe Weight Loss: Unveiling Her Successful Strategies mustard seed ring and scanned it with his spiritual consciousness.
Even if Xi Yan was in Zhongzhou, he had the Poxu Sword Intent.The two great monks of the Baidi Sect activated their strongest state and integrated into the formation in the form of Nascent Soul.
The location of this street is Rhino Male Enhancement: Benefits and User Reviews very remote, but the residence of Zhenjun Chiye is not simple at all.Previously in Wulongtan, Qingyang cooperated with the Iron armed Monkey and tried their best, but in the end they were defeated by Master Guihe.
If he attacks directly from this distance, the power is too small, but if he does not attack, he can only watch the iron eating beast.How can I be dishonest Hun Su said, It s good to be able to do this.
Qingyang has been able to control the Five Elements Sword Formation with ease in these years.You really think that we monks in Chujiang City are easy to bully.
Introduction, if you look carefully, there is a lot of introduction about the Blood Demon Gu in the book, but not much about the Gu Mother.This was the prey they had been chasing for a long time.
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The opponent is far behind, how easy is it to win Although there are two people on his side, Master Lingxu is actually a burden now.The three of them had better cultivation than this.
His Yuanying was just like the previous body, completely He looked confused and didn t know what to say.I didn t mean anything else. I just wanted to say hello to you.
From now on, Dou Changzai would not forget about everyone after his rapid rise.I happen to be going to Qingyan City to settle accounts with those people in blood clothes, so I can take you on a ride.
Thinking of this, the Love Ending Fairy went crazy with jealousy, and she suddenly gushed out With a mouthful of blood, he said Impossible.It must be eradicated. Qingyang lowered his head, looked at Shi Ruyin who was lying limp on the ground, and said calmly I have killed all your guards and servants.
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If there is no interference, his spiritual thoughts will It can explore two to three thousand feet in a straight line, and it is not difficult to detect the isolation formation inside.But why did this guy improve his cultivation so quickly In just over eighty years, he went from the foundation stage to the point where he was not afraid of the entire Yang family.
Although there were some dangers encountered during the process, Compared with the final reward, this thrill is nothing at all.He can only mobilize the Five Elements Sword Formation to block it while retreating sharply.
Even a Yuanying monk would have to save up to seven years.This group of people The strength is higher They are all in the Nascent Soul stage, and the leader is a monk who is at the top of the fifth level of the Nascent Soul.
The other eighteen relics have too great a restraint effect on ghost cultivators.With the strength of a second level monk, and the help of a ninth level peak monster monkey, he is not Inside Hollywood: Does Drinking Apple Cider Vinegar Help with Weight Loss? even a match for your demonic dragon, but this person can do it.
We can t let everyone s work go in vain in the end, right The Fuliu Ghost King repeatedly questioned himself, and the Giant Ghost King was very unhappy Gunna Weight Loss: Insights into His Journey and Techniques and said You all came to Shenying Valley voluntarily, and I didn t force you.Then the second son of the Yang family doesn t think the name Qingyang A little known boy with a cultivation level in the middle stage of the Golden Core.
The Coffin bearing Ghost King was seriously injured when the Linglong Ghost King self destructed, and was later trapped by the Vajra Demon Subduing Formation.This cocoon is completely black and slightly heavy in the hand.
It is really a wishful thinking. The nine ghost kings of the Ten Kings Palace are all here.It seems that those people have long expected that Baimei Ghost King will not let him go easily, and the most likely thing is to keep him as her face.
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