03 May 2025, 13:40 [ UTC - 5; DST ]
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Post subject: Re: NASA / Lockheed Martin X-59  Posted: 13 Jan 2024, 23:11 |
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Joined: 01/23/13
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Company: Kokotele Guitar Works
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Username Protected wrote: I heard it's been given the name Pinocchio.  But will it scale up to airliner size? That's funny Scaling isn't the point of this project. This is to validate the idea that they can reduce the size of the sonic boom. Designing a transport comes after the technology validation. It does seem tough to make a viable transport if it has to have such a long schnoz, though.
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Post subject: Re: NASA / Lockheed Martin X-59 Posted: 14 Jan 2024, 15:16 |
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Joined: 03/28/17
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Username Protected wrote: I heard it's been given the name Pinocchio. But will it scale up to airliner size? That's funny Scaling isn't the point of this project. This is to validate the idea that they can reduce the size of the sonic boom. Designing a transport comes after the technology validation. It does seem tough to make a viable transport if it has to have such a long schnoz, though.
Yes , and hanging more engines on a transport is an aerodynamic game changer. Nobody is going to ride in a single engine transport, even if they could scale such an engine, it wouldn't meet redundancy regs. It's going to have to be a modified version of something like the Concorde, but if that long nose on the X-59 is the enabler, that would present a problem.
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Post subject: Re: NASA / Lockheed Martin X-59 Posted: 14 Jan 2024, 15:51 |
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Joined: 03/23/11
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I didn't think it was about size....but re-directing the sonic (noise) energy so the amount on the ground was tolerable. Username Protected wrote: I heard it's been given the name Pinocchio. But will it scale up to airliner size? That's funny Scaling isn't the point of this project. This is to validate the idea that they can reduce the size of the sonic boom. Designing a transport comes after the technology validation. It does seem tough to make a viable transport if it has to have such a long schnoz, though.
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Post subject: Re: NASA / Lockheed Martin X-59 Posted: 14 Jan 2024, 22:54 |
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Here's more background on the technology.... https://www.youtube.com/watch?v=fZhQ_dT0ZwA[youtube]https://youtu.be/fZhQ_dT0ZwA[/youtube]
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Post subject: Re: NASA / Lockheed Martin X-59 Posted: 15 Jan 2024, 01:36 |
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NASA has been doing the sonic boom mitigation research for a long time. Some of my friends are NASA pilots involved in it, and their stories are really interesting. They use a TG-14 motor glider outfitted with a lot of microphones to aid in the research.
Side note: until just a few years ago, they had a very rare YO-3A that they used as the "quiet" aircraft before the TG-14. The plane was sold in great condition, however the owners that bought it are letting it rot in Concorde, CA. Really said to see such a unique aircraft sit in the elements.
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Post subject: Re: NASA / Lockheed Martin X-59 Posted: 15 Jan 2024, 09:54 |
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Joined: 11/20/16
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I remember the NASA bird. Pilot told me I was the first controller he'd talked to who know what it was, since I'd read about their use in Vietnam.
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