Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

American Airlines agrees to purchase Boom Supersonic Overture aircraft

boomsupersonic.com

Post reply on HN
Print view View original

71–80 of 531 posts

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#71

Post by petesergeant »

cjrp wrote: post #56
nradov wrote: post #26

Earlier quoted context omitted.

LHR is capacity constrained right now so they don't have slots to add more flights. Hopefully the runway expansion will be finished by the time Boom airliners are actually in service.

American would swap this in for a plane which is using an existing takeoff/landing slot. Heathrow is also passenger-capacity-constrained right now, but that's more to do with understaffing.

> American would swap this in for a plane which is using an existing takeoff/landing slot

Have to be charging a great deal to the small number of passengers for it to be worth swapping in to a fully loaded 777 spot

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#72

Post by jayzalowitz »

zionic wrote: post #59
flerchin wrote: post #9

Not a lot to go on here. Boom projects first flight in 2026 for the Overture. They seem to be fairly close to first flight with their XB-1, but it has not flown yet. I congratulate them on getting funding, but all the hard parts are ahead. https://en.wikipedia.org/wiki/Boom_XB-1

By 2026, with the typical delay till 2028 they’ll face the prospect of Earth-2-Earth starship flights

yeah, id put that in the 30s, thers a lot more risk there.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#74

Post by KptMarchewa »

abujazar wrote: post #52
akmarinov wrote: post #16

Earlier quoted context omitted.

Not only very expensive, but basically coach class all the way through, even for the rich people.

You mean couch class? https://boomsupersonic.com/static/images/overture-experience...

Interior will depend on the line.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#75

Post by replygirl »

cjrp wrote: post #32
replygirl wrote: post #21

Earlier quoted context omitted.

it's all turboprops and no afterburner. so, expensive, but much more affordable than concorde, maybe to the point of competing with subsonic first class

Turbofan (what's on most commercial jet aircraft), not turboprop (jet engine driving a propeller, generally on smaller commercial and some private aircraft).

ah, neat! looks like they recently switched from 3x turboprop to 4x turbofan

edit: had to correlate sources to find that a bunch of popular aviation blogs got the original design wrong. was actually 3x turbofan -> 4x turbofan

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#76

Post by tgv »

replygirl wrote: post #28
cma wrote: post #20

Earlier quoted context omitted.

How are they doing this with sustainable energy?

biofuels or synthetics. not sure if they plan to own the fuel supply chain, so "net zero" may come through offsets to cover the impact of producing the fuels

Biofuels is ecological fraud. It is not sustainable. And is there a synthetic fuel plant with zero impact at any scale already? No, this is just wasting more fuel for the heck of it.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#77

Post by willyt »

gruturo wrote: post #45
nikhizzle wrote: post #22

Earlier quoted context omitted.

Interesting that this is slower that the Concord which cruised at Mach 2. I wonder if a slightly lower speed makes the economics more sustainable.

If this is achieved without afterburners (as I understand it is), then yes, this is an immense difference in fuel consumption and radically impacts the economics.

Concorde only used afterburner(en_us)/reheat(en_uk) for a small part of the acceleration phase of the flight not for cruise.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#78

Post by thatjoeoverthr »

replygirl wrote: post #21
alphabetting wrote: post #3

Overture is being designed to carry 65 to 80 passengers at Mach 1.7 over water — or twice the speed of today’s fastest commercial aircraft — with a range of 4,250 nautical miles. Optimized for speed, safety and sustainability, Overture is also being designed to fly more than 600 routes around the world in as little as half the time. Flying from Miami to London in just under five hours and Los Angeles to Honolulu in t…

it's all turboprops and no afterburner. so, expensive, but much more affordable than concorde, maybe to the point of competing with subsonic first class

When I saw “all turboprop and no afterburner” I imagined some new flavor of “all cat, no cattle”.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#79

Post by ZeroGravitas »

replygirl wrote: post #28
cma wrote: post #20

Earlier quoted context omitted.

How are they doing this with sustainable energy?

biofuels or synthetics. not sure if they plan to own the fuel supply chain, so "net zero" may come through offsets to cover the impact of producing the fuels

They appear to have signed a deal with YCombinator startup Prometheous Fuels to supply the SAF fuel, with carbon offsets to cover other carbon costs.

https://www.prometheusfuels.com/

(very cool website, not sure if thats a good or a bad thing)

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#80

Post by jayzalowitz »

nradov wrote: post #61
moffkalast wrote: post #34

Earlier quoted context omitted.

I'm pretty sure a Europe-Australia line that doesn't take two days with 3 layovers would sell like hotcakes regardless of accommodations.

The Boom Overture lacks the range for the Europe-Australia line. It would have to make two refueling stops to fly CDG to SYD. I think the primary initial market will be Transatlantic.

If they can find a way to add another ~400 nautical miles, you could do hawaii.
Post reply on HN