Boom XB-1 makes 1st flight
#11
“Somebody” didn’t make reusable rockets from scratch. The richest person in the world, who happens to be autistic did. Boom is not financed by even one of the top 10 richest people in the world. Even Elon has said the FAA is regulating us out of innovation! So how is a startup going to create an airframe and engine out of thin air and get it certified by the FAA? EVER?
Airbus can’t even get the 321 XLR certified.
Airbus can’t even get the 321 XLR certified.
#12
sometimes I can’t tell if you are serious. “Somebody” didn’t make reusable rockets from scratch. The richest person in the world, who happens to be autistic did. Boom is not financed by even one of the top 10 richest people in the world. Even Elon has said the FAA is regulating us out of innovation! So how is a startup going to create an airframe and engine out of thin air and get it certified by the FAA? EVER?
Airbus can’t even get the 321 XLR certified.
Airbus can’t even get the 321 XLR certified.
People coming in with different mindsets and approaches seem to be able to to move the ball further and faster.
Full disclosure I (and my peers in industry) didn't think spacex had a snowball's chance 15 years ago, we thought it was just tech bros about to find out the hard way that heavy aeropsace is a lot harder than coding phone apps.
Yes you need money. But that's not enough apparently, plenty of vast corporations and governments have money.
#13
The airframe isn't the issue right now. Making a subsonic commercial jet engine is already a long and expensive process. Those engines get sold in the hundreds and thousands. I just don't see how a new commercial supersonic engine can be developed for such a small market.
I can almost assure you that the engine core will be based on something which is already in routine production, and licensed with some custom mods.
I couldn't imagine a clean slate engine for the likes of Boom.
Part of their challenge is selecting and adapting such an engine.
#14
In a land of unicorns
Joined APC: Apr 2014
Position: Whale FO
Posts: 6,469
That's a very good point.
I can almost assure you that the engine core will be based on something which is already in routine production, and licensed with some custom mods.
I couldn't imagine a clean slate engine for the likes of Boom.
Part of their challenge is selecting and adapting such an engine.
I can almost assure you that the engine core will be based on something which is already in routine production, and licensed with some custom mods.
I couldn't imagine a clean slate engine for the likes of Boom.
Part of their challenge is selecting and adapting such an engine.
CFM56 was developed from a supersonic engine.
#15
That's why Hermeus is pretty much making a brand-new engine for their supersonic aircraft. And even they realize only the DOD can justify the cost of their engines. It's a catch-22. To make a commercially successful supersonic passenger aircraft, you need the latest engine technology to make it work. To design a new commercial engine with the latest technology requires a large order list to justify the development costs.
#16
Gets Weekends Off
Joined APC: Feb 2008
Posts: 19,273
If that's the case, then this project is doomed to fail. Most "current" supersonic engines are based on engines from the 1960s. The DOD made it work because they didn't care about fuel cost and developed aerial refueling to address the range issues. They are already pushing the envelope trying to make an airframe that doesn't create a sonic boom, I couldn't imagine they would then add the challenge of making a J79-based engine fuel-efficient. Maybe they could get access to a PW F119 engine, but I highly doubt that engine would work well in a commercial aircraft. Commercial engines have very different design requirements than military engines.
That's why Hermeus is pretty much making a brand-new engine for their supersonic aircraft. And even they realize only the DOD can justify the cost of their engines. It's a catch-22. To make a commercially successful supersonic passenger aircraft, you need the latest engine technology to make it work. To design a new commercial engine with the latest technology requires a large order list to justify the development costs.
That's why Hermeus is pretty much making a brand-new engine for their supersonic aircraft. And even they realize only the DOD can justify the cost of their engines. It's a catch-22. To make a commercially successful supersonic passenger aircraft, you need the latest engine technology to make it work. To design a new commercial engine with the latest technology requires a large order list to justify the development costs.
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