An airplane with a wingspan greater than the lengthof a football field just flew for the first time — putting us one step closer to more affordablespaceflight.
The largest airplane in the world, the Stratolaunch, took off from Mojave Air and Space Port in Mojave, Calif., on Saturday for its first test flight. According to a news release, it reached a maximum speed of 304 kilometers per hour (189 miles per hour) over the course of the 2.5-hour-long flight, soaring as high as 17,000 feetbefore landing safely.
"The flight itself was smooth, which is exactly what you want a first flight to be," test pilotEvan Thomas told The Verge, later adding, "It flew very much like we had simulated and like wepredicted."
"飞行很顺利，这正是大家期待的试飞效果。”试飞员埃文·托马斯(Evan Thomas)告诉《边缘》杂志 ，后来又补充说,"它的试飞与我们模拟和预测相符。”
Microsoft co-founder Paul Allen started Stratolaunch Systems in 2011 with the goal of buildingan airplane massive enough to carry rockets and other spacecraft to low-earth orbit.
This way of reaching space, known as air launch to orbit, has numerous benefits overtraditional spacecraft launches. Because the plane takes off from a runway, it "cancircumvent bad weather, air traffic, and other variables that cause delays with traditionalground launches," according to Stratolaunch's website.
And because the Stratolaunch is reusable — it lands after each launch — the company doesn'tneed to charge as much for its launch services, further democratizing access to space.