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Boom (YC W16) – Supersonic Passenger Airplanes

boom.aero

231–240 of 488 posts

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#231
post #68

It describes their values as something like 'fly long distance in the morning, do a bunch of meetings there, and be back before the end of the day'. Does it make sense to travel 20,000km on one day to make a bunch of meetings, spending 15,000$? I feel that better tele-presence just makes more sense.

I am with you, even though I like what Boom proposes.

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#232
post #148

Earlier quoted context omitted.

They likely accelerate much faster, and slowing down from mach 2.2 is also fast.

Data from an actual Concorde flight shows slowdown-to-land of around 45 mins, so around the same as a regular flight. http://www.blodtandsmidigt.com/concordeprofiles.html

Yes, but if the Concorde slows from Mach 2 to 0 over 45 mins then it's average may be ~mach 1. Which is faster than the average velocity of a normal 747.

Granted, if the Concorde shows up and needs to circle the airport for 20 minutes then that's the same delay.

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#233

Hi - I'm Blake, Founder/CEO at Boom. After watching no tangible progress in supersonics since Concorde was shut down, I started Boom because I want supersonic flight in our lifetime. Not just as a private jet, but something most anyone can afford to fly. Will try to answer as many questions here as I can.

What will your pilots do, just as a for instance, if ... say a lone Cessna asks tower for his ground speed ... and then a bit later a navy F-18 pilot also asks tower for his ground speed ?

What will they do in that situation ?

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#235
post #166

Earlier quoted context omitted.

> has made this economic. That remains to be seen. They don't even have an engine yet, so this is still firmly in the "we'll see" category.

Seriously. People here are way underestimating the costs to develop and certify a major commercial airframe, especially across the multiple regulatory regimes inherent to international flight. You're probably talking about on the order of a billion dollars even if you're playing it cheap. If you want to start re-engineering components instead of buying off the shelf, that number will go uphill rapidly. This is not a…

cost of developing the falcon 9 is estimated at about $300M (wikipedia quoting spacex). that's a surprisingly small mountain of money. a supersonic passenger jet should be probably in the same ballpark, right?

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#236
"""While carrying a full load, Concorde achieved 15.8 passenger miles per gallon of fuel, while the Boeing 707 reached 33.3 pm/g, the Boeing 747 46.4 pm/g""" It's like an SUV for the sky. We have to get antropogenic carbon dioxide to 0 until 2050 if we want our species to survive and people come up with less energy efficient transportation?

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#237
post #233

Hi - I'm Blake, Founder/CEO at Boom. After watching no tangible progress in supersonics since Concorde was shut down, I started Boom because I want supersonic flight in our lifetime. Not just as a private jet, but something most anyone can afford to fly. Will try to answer as many questions here as I can.

What will your pilots do, just as a for instance, if ... say a lone Cessna asks tower for his ground speed ... and then a bit later a navy F-18 pilot also asks tower for his ground speed ? What will they do in that situation ?

Hilarious context, for those who haven't read it yet: http://oppositelock.kinja.com/favorite-sr-71-story-107912704...

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#238
post #3

Sorry but is "Boom" really a good name for an aircraft company? I get it's supersonic, but my first association was an exploding airplane.

Even if it's named after the sonic boom the plane makes, you would think they would be trying to minimize that association as much as possible. People dont like sonic booms. Seems like an awfully tone-deaf choice.

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#239
post #233

Hi - I'm Blake, Founder/CEO at Boom. After watching no tangible progress in supersonics since Concorde was shut down, I started Boom because I want supersonic flight in our lifetime. Not just as a private jet, but something most anyone can afford to fly. Will try to answer as many questions here as I can.

What will your pilots do, just as a for instance, if ... say a lone Cessna asks tower for his ground speed ... and then a bit later a navy F-18 pilot also asks tower for his ground speed ? What will they do in that situation ?

i think that depends on how badass the copilot is

Re: Boom (YC W16) – Supersonic Passenger Airplanes

#240

Hi - I'm Blake, Founder/CEO at Boom. After watching no tangible progress in supersonics since Concorde was shut down, I started Boom because I want supersonic flight in our lifetime. Not just as a private jet, but something most anyone can afford to fly. Will try to answer as many questions here as I can.

Elon Musk says that eventually we will move to VTOL supersonic electric jets, but he is too busy with other projects to implement it.

Have you thought about this idea, and in what time frame do you think someone might try to implement it?

Elon's basic idea is that air-breathing jets are limited to altitudes at which oxygen tops out, and then are mostly fighting drag from nitrogen. Electric ones can go to higher altitudes and experience less drag at much higher speeds. However wings designed to do that won't help you get off the ground, therefore you need vertical take off and landing. Which eliminates the need for a large airport, allowing you to locate more conveniently to major cities.

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