For a decade, NASA scientists have worked on an air-to-air photographic technology that will be used to collect data for the agency's next-generation supersonic airplane project. They've just released these absolutely astonishing "first air-to-air images of supersonic shockwave interaction in flight."
“We never dreamt that it would be this clear, this beautiful," says NASA scientist J.T. Heineck.
The images feature a pair of T-38s from the U.S. Air Force Test Pilot School at Edwards Air Force Base, flying in formation at supersonic speeds. The T-38s are flying approximately 30 feet away from each other, with the trailing aircraft flying about 10 feet lower than the leading T-38. With exceptional clarity, the flow of the shock waves from both aircraft is seen, and for the first time, the interaction of the shocks can be seen in flight.
“We’re looking at a supersonic flow, which is why we’re getting these shockwaves,” said Neal Smith, a research engineer with AerospaceComputing Inc. at NASA Ames’ fluid mechanics laboratory.
“What’s interesting is, if you look at the rear T-38, you see these shocks kind of interact in a curve,” he said. “This is because the trailing T-38 is flying in the wake of the leading aircraft, so the shocks are going to be shaped differently. This data is really going to help us advance our understanding of how these shocks interact...”
While NASA has previously used the schlieren photography technique to study shockwaves, the AirBOS 4 flights featured an upgraded version of the previous airborne schlieren systems, allowing researchers to capture three times the amount of data in the same amount of time.
“We’re seeing a level of physical detail here that I don’t think anybody has ever seen before,” said Dan Banks, senior research engineer at NASA Armstrong. “Just looking at the data for the first time, I think things worked out better than we’d imagined. This is a very big step.”
I always thought that the reason people look so grim in antique photos is because it would have been exhausting to hold a smile for long exposures that I imagined were required by ye olde cameras. Nope! From the always-informative Smithsonian magazine: …Exposures from the early days of commercial photography only lasted about 5 to […]
In celebration of the 50th anniversary of the first human Moon landing on July 20, Vernacular photography collector Robert E. Jackson curated a lovely collection of vintage snapshots related to the Moon. I’ve always gotten a kick out of how TV viewers around the world used to snap photos of their screens to commemorate momentous […]
Astrophotographer Ralf Vandebergh captured an image of the US Air Force’s X-37B space plane in orbit. The reusable, uncrewed space vehicle, designated OTV-5, is on a secret testing mission since its launch in September 2017. From Vandebergh’s post at Spaceweather.com: I have been hunting for the OTV-5 since months and saw it visually in May. […]
With the rising temperatures on tap this summer, the climate is going to be a frequent topic of conversation, and those conversations won’t be happy ones. Luckily, there’s a way to do a little climate change of your own – in a safe and sustainable way. When it comes to personal air conditioners, EvaPolar is […]
Whether you’re using them for next-level selfies or steady tracking shots, gimbals are a must for anyone who wants to maximize the potential of these powerful smartphone cameras we’re all carrying around. But those smartphones are also supposed to be portable, and let’s face it: Gimbals tend to offset that advantage. Weighing in at just […]
It’s too hot for yard sales, but hey: The internet is here for you. Here are the top ten deals on some of the Boing Boing Store’s best gear, just in time for summer. It’s everything from grills to security cameras to MacBook Pros, and they might be as low as they’re ever going to […]