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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

#111

Post by tedivm »

replygirl wrote: post #75
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).

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

Everyone claiming you are wrong hasn't bothered to google. Literally the first response for "overture turboprop" is a series of articles confirming what you said.

> The Overture supersonic aircraft will be powered by three turboprop engines, which includes two that will be mounted under each wing, while the third engine will be fitted at the end of the fuselage.

https://www.aerospace-technology.com/projects/overture-super...

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#112

Post by bell-cot »

From Boom's Wikipedia page, they seem to have built zero airplanes which even attempted to take off. That includes their 1/3 scale "technology demonstrator" test plane - which was supposed to fly back in 2017.

I'll guess that American's "non-refundable deposit" for the first 20 Boom aircraft was pretty small, and came out of American's marketing budget. Or was a negotiating tactic, to help American get a better price from some real aircraft manufacturer.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#113

Post by mikeryan »

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.

Three hours from SF/LA to Hawaii would have a ton of takers at a premium price even at coach class. It makes that trip doable for a long weekend.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#114

Post by upupandup »

pinewurst wrote: post #101

I'm reminded of all the airline announcements at the end of the 60s announcing agreed purchases of Concorde and Boeing 2707.

and guess what happened at that time too: capital suddenly got very expensive and companies went under.

this is the worst possible time for launch and the name will be quite poetic

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#115

Post by hermitdev »

atdrummond wrote: post #49
bragr wrote: post #5

>American has paid a non-refundable deposit on the initial 20 aircraft. I guess that's not nothing given how these sorts of contracts usually give the big name brand company lots of outs if the speculative company goes bust, but by bragging about it without specifying the amount, I'm guessing it's a low amount.

I will say that I’ve seen plenty of “non-refundable” contracts in this industry (see Qatar’s ongoing tiff with Airbus over coating peeling issues) result in either side unilaterally cancelling delivery of airframes. It would really come down to what exactly went wrong whether or not AA could truly couldn’t claw that deposit back.

I'm pretty sure it's nonrefundable from the stance of AA can't just change its mind and get its money back. If Overture fails to deliver on certain metrics, I'd be willing to bet AA has a refundable out.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#116

Post by phire »

tgv wrote: post #76
replygirl wrote: post #28

Earlier quoted context omitted.

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.

Are you saying that sustainable synthetic fuels can't exist? Or don't current exist? Because those are two very different statements.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#117

Post by sktrdie »

Do we really need to go somewhere so quickly? There needs to be a line somewhere where "getting to the other side of the planet in less than 12 hours is unsustainable and environmentally horrible".

I've learned to appreciate slow-travel using trains and have been a supporter of electric planes for reaching further places.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#118

Post by sokoloff »

replygirl wrote: post #88
replygirl wrote: post #75

Earlier quoted context omitted.

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

why the downvotes? the original design was trying to use 3x turboprops, and i can see articles on google about them switching to 4x turbofans after the xb-1 work edit: see parent edit, i was wrong. you guys are pretty good at making someone with misinfo feel bad though

The XB-1 used 3 turbojet engines.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#119

Post by gsnedders »

willyt wrote: post #77
gruturo wrote: post #45

Earlier quoted context omitted.

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.

Note that Concorde "B" was meant to use a variant of the Olympus 593 without reheat, but ultimately lack of sales of the original aircraft doomed it.

Re: American Airlines agrees to purchase Boom Supersonic Overture aircraft

#120

Post by zahma »

bell-cot wrote: post #112

From Boom's Wikipedia page, they seem to have built zero airplanes which even attempted to take off. That includes their 1/3 scale "technology demonstrator" test plane - which was supposed to fly back in 2017. I'll guess that American's "non-refundable deposit" for the first 20 Boom aircraft was pretty small, and came out of American's marketing budget. Or was a negotiating tactic, to help American get a better price…

On the heels of a news headline saying they’ve cancelled another 30,000 flights through November, I’d bet you’re on to something.

https://www.consumeraffairs.com/news/american-airlines-to-cu...

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