lazy_flyer (lazy_flyer) wrote,
lazy_flyer
lazy_flyer

Пятидневного псто...

Кажется я понял, в чём секрет успешного успеха. Главное - жизнеутверждающий заголовок в новостной ленте.

Engineers design drones that can stay aloft for five days
Ух ты! Гляжу на картинку и думаю - вот это успех. Пять дней в воздухе. И никаких новомодных батареек тесла и остальной зелёной энергии. Всё на кошерном газолине.

In the event of a natural disaster that disrupts phone and Internet systems over a wide area, autonomous aircraft could potentially hover over affected regions, carrying communications payloads that provide temporary telecommunications coverage to those in need.

However, such unpiloted aerial vehicles, or UAVs, are often expensive to operate, and can only remain in the air for a day or two, as is the case with most autonomous surveillance aircraft operated by the U.S. Air Force. Providing adequate and persistent coverage would require a relay of multiple aircraft, landing and refueling around the clock, with operational costs of thousands of dollars per hour, per vehicle.

Now a team of MIT engineers has come up with a much less expensive UAV design that can hover for longer durations to provide wide-ranging communications support. The researchers designed, built, and tested a UAV resembling a thin glider with a 24-foot wingspan. The vehicle can carry 10 to 20 pounds of communications equipment while flying at an altitude of 15,000 feet. Weighing in at just under 150 pounds, the vehicle is powered by a 5-horsepower gasoline engine and can keep itself aloft for more than five days — longer than any gasoline-powered autonomous aircraft has remained in flight, the researchers say

The team is presenting its results this week at the American Institute of Aeronautics and Astronautics Conference in Denver, Colorado. The team was led by R. John Hansman, the T. Wilson Professor of Aeronautics and Astronautics; and Warren Hoburg, the Boeing Assistant Professor of Aeronautics and Astronautics. Hansman and Hoburg are co-instructors for MIT’s Beaver Works project, a student research collaboration between MIT and the MIT Lincoln Laboratory.
.

Обязательно нужно вспомнить о суперсовременных материалах,недоступных простым смертным.

In the fall of 2016, the team built a prototype UAV, following the dimensions determined by students using Hoburg’s software tool. To keep the vehicle lightweight, they used materials such as carbon fiber for its wings and fuselage, and Kevlar for the tail and nosecone, which houses the payload. The researchers designed the UAV to be easily taken apart and stored in a FedEx box, to be shipped to any disaster region and quickly reassembled.

И бабах - видосик для привлечения внимания.



И вправду летает, спору нет. Но как всегда, мерзкий червь сомнения грызёт. И ведь не зря грызёт...

In early May, the team put the UAV to the test, conducting flight tests at Plum Island Airport in Newburyport, Massachusetts. For initial flight testing, the students modified the vehicle to comply with FAA regulations for small unpiloted aircraft, which allow drones flying at low altitude and weighing less than 55 pounds. To reduce the UAV’s weight from 150 to under 55 pounds, the researchers simply loaded it with a smaller ballast payload and less gasoline.

In their initial tests, the UAV successfully took off, flew around, and landed safely. Hoburg says there are special considerations that have to be made to test the vehicle over multiple days, such as having enough people to monitor the aircraft over a long period of time.

“There are a few aspects to flying for five straight days,” Hoburg says. “But we’re pretty confident that we have the right fuel burn rate and right engine that we could fly it for five days.


Ну вот почему всегда так? Мы не проверяли, потому что нет нужного количества человеков. Но мы верим, что оно полетит пять дней.
Главное - верить. И заголовок в прошедшем времени, который не вызывает сомнений в успешности успеха успешных людей.

Почему лично я не верю?
24*5=120.
Вот столько часов должен непрерывно отработать поршневой двухтактный ДВС. Все абсолютно двигатели, модельные и профессиональные, с которыми я имел дело за последние годы имеют ресурс до так называемого check-in на уровне 40-50 часов. После 100 часов - требуют мелкого сервисного ремонта и более тщательной проверки.
Высокофорсированные двигатели - 150-200 часов и полная переборка, с заменой некоторых подшипников и поршневой.
Пять дней, да. Построили и летает.
Tags: Беспелотнеги
Subscribe

Recent Posts from This Journal

  • Модного псто - 2...

    Не так давно писал о изобретении миллениалами ватника. И вот внезапно... Надо позвонить знакомому прапорщику...

  • Предпятничной музыки псто...

    Песенка о дожде...

  • Иллюзий псто...

    Не только лишь все помнят, как в августе 2020 года вся Беларусь как один человек вышла на протест. Вышла, постояла и ушла. В отличии от Зазаборья…

  • Post a new comment

    Error

    Anonymous comments are disabled in this journal

    default userpic

    Your IP address will be recorded 

  • 9 comments

Bestw00dy

June 23 2017, 23:03:00 UTC 4 years ago

  • New comment
> In their initial tests, the UAV successfully took off, flew around, and landed safely.
> But we’re pretty confident that we have the right fuel burn rate and right engine that we could fly it for five days.

Вот где-то так: