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American Airlines agrees to purchase Boom Supersonic Overture aircraft

boomsupersonic.com

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Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#191

Post by gibolt »

awb wrote: post #183
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…

> over water All the imagined routes are over large bodies of water. Is it key to the functionality or intent of the aircraft in some way? Why not NYC to LAX in 3 hours?

Supersonic booms are extremely loud. Without solving that problem, these can not be flown over populated areas.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#193

Post by mshook »

ISL wrote: post #24
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.

Rich people value time highly. Coach-class that gets you somewhere quickly can be worth a lot more than first-class that takes twice as long.

Still, flying westbound fast makes tons of sense as you can arrive "before" you took off (local time) and thus you get a whole day in front of you.

But eastbound makes a lot less sense, unless you're just trying to save time. Because flying at night eastbound won't make you gain much compared to a regular red eye and flying during the day, you'll land at night...

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#194

Post by ropiku »

awb wrote: post #183
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…

> over water All the imagined routes are over large bodies of water. Is it key to the functionality or intent of the aircraft in some way? Why not NYC to LAX in 3 hours?

Due to noise constraints supersonic flight is banned over land right now. If they lower noise pollution maybe laws will be changed.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#195

Post by jacksonkmarley »

replygirl wrote: post #81
thatjoeoverthr wrote: post #78

Earlier quoted context omitted.

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

i hate when cowboys wear the cat but don't actually work with cattle

Ok I'm assuming the parent was a typo (???). And the original is "all hat, no cattle" I guess, but I feel like I've heard the saying "all hat, no cat", is that a thing? Because there was a cat in a hat, and it rhymes, so it basically still works as a saying.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#196

Post by wongarsu »

akmarinov wrote: post #16
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…

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

When the choice is a two day business trip flying in business class or a one day trip in elevated coach class, lots of people will choose the option that has them back on the same day.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#197

Post by ZeroGravitas »

awb wrote: post #183
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…

> over water All the imagined routes are over large bodies of water. Is it key to the functionality or intent of the aircraft in some way? Why not NYC to LAX in 3 hours?

I believe supersonic flight is currently banned over the USA (and most countries?).

A previous entrtant in this area seemed to suggest that efficiency dropped near mach 1, but then rose again to 95% at speeds around 1.4 so being able to stay at that speed may make it cheaper to run and maximize their USP of speed.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#198

Post by throwaway0a5e »

samstave wrote: post #107
cjrp wrote: post #32

Earlier quoted context omitted.

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

r/noStupidQuestions ; Can these be 'stacked' - Can you have a turboFan in line with a turboProp such that the output of the wash of the Fan feeds into the Prop, but with a portion of the wash spinning to thrust on the outer ring of output.=, via a design in the cowlings which is hyper directed thrust vents (think the grid of straws used to funnel water into a cohesive column, which can be directed) Imagine a small di…

"can" vs "can come up with an implementation that provides any performance benefits in any set of real world circumstances"

You could. But there's no way the efficiency and complexity penalty having props feeding fans or fans feeding props comes out ahead of "pick one and make it bigger"

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#199

Post by Scoundreller »

cjrp wrote: post #131
rtpg wrote: post #95

Earlier quoted context omitted.

There are definitely people who can get work done in a flight, but honestly I have a hard time imagining logging 7 hours. Maybe if you have a lot of reading to do?

I'm the same, but I'm imagining the "super serious business people" who are presumably the target market for these planes (given the price). Is it worth the premium to get them from London to NYC in 4 hours, when they could do 5 hours of billable work in the lounge/on the plane anyway.

Depends on how well you can sleep I guess. US to Europe is almost entirely overnight flights.

Not so much the other way though.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#200

Post by galgot »

So they went from scaled down Concorde configuration :

https://www.airway.com.br/wp-content/uploads/2020/10/Boom_Ov...

to a very scaled down Boeing 2707-300 configuration :

https://en.wikipedia.org/wiki/Boeing_2707

(that tiny fin tho...). While reducing cruise speed to 1.7 mach. I see no visible changes to deal with the sonic booms problem. So operation would be like Concorde I suppose, subsonic (or hi-subsonic) over land and Supersonic over ocean only. Unless the super-rich manage the regulation to change.

EDIT : ah yes :) "2x FASTER OVER WATER" and "20% FASTER OVER LAND"...

Also : Maybe good to remember that 18 airlines had once placed orders for Concorde, with only the 2 national carriers flying it in service eventually. And that The Boeing 2707 was ordered by 27 airlines before the program being canceled…

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