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JetZero

jetzero.aero

131–140 of 277 posts

Re: JetZero

#131
post #5

Big screens are an OK workaround for no passenger windows, but they still have to contend with severe structural pressurization challenges, strict emergency evacuation rules, and incompatibility with current airport gates.

The gates thing was my first thought when I saw the design although a staircase on the tarmac could be a cheap workaround.

Re: JetZero

#133

Not this again. They’ve clearly hired a new PR firm Suffice it to say, from stable aeronautics at-edge, jet way footprint efficiency, ground support efficiency, airframe pressurization, cargo & passenger logistics, lifespan, and certification, there are many, many reasons “tube + wings” is the dominant airframe architecture for all non-military aircraft.

There are many reasons for a lot of things, until you overcome those reasons. That's the point of innovation. There are many reasons not to make a reusable rocket too.

Yes, but this "innovation" (as sold) must exist as a viable commercial airplane.

So far, I see zero evidence that this company has addressed any of the aforementioned challenges beyond theoretical fuel consumption and theoretical passenger logistics.

As someone who has 31 hours towards their single-engine ppl cert, I absolutely abhor the stagnation of general and commercial aviation due, largely, to certification barriers, BUT even having a viable flight-worthy blended-wing concept does not make for a viable mass market product.

Not related, see the near half-century of "alternative" wing and airframe designs that are absolutely better at a few pieces of the puzzle, but also absolutely failed to be viable when integrated into a fully functional and safe airplane.

This company needs to focus on success in a niche product role before addressing the safety, integration, and manufacturing needs of the mass commercial aviation market. They are not (atm) backed by this sort of "patient capital".

Not related, see all of the VC and failures required by Whittle (in wartime no less) to develop the jet engine or Tesla's corporate journey from Roadster -> S -> Y.

Re: JetZero

#134
post #5

Big screens are an OK workaround for no passenger windows, but they still have to contend with severe structural pressurization challenges, strict emergency evacuation rules, and incompatibility with current airport gates.

No way. Looking out the window is one of the joys of flying. Picking out my house, seeing tiny cars on a remote highway, etc. Even 100+ MP cameras and high resolution screens won't come close to that level of detail.

Bullshit. Last time I flew internationally, only two of the eight seats had window access.

Interior isle seats cost as much as window seats in airlines that charge for position. People just want space.

Re: JetZero

#135
post #21

Feels like no windows is almost a deal-breaker? No? Do humans handle small enclosed spaces with no way to look outside well? The mock-up image looks like a small two-or-three seat compartment, which seems like it would be awful. Maybe an open space would be less claustrophobic, but still. Imagining just a normal jetliner today with no windows feels... not great. And I'm not sure having a giant flat screen wrapped aro…

Actually no windows doesn't even pass Passenger Flight rules and regulations. In Asia, its mandatory that windows should be opened, visible during takeoff and landing.

Doesn’t that technically only mean that all windows that exist need to be open, and having no windows at all would satisfy the requirement “all windows are open”? Or is the second sentence an addition to the first?

Re: JetZero

#136
post #128

Tangentially related Good news: You can avoid about half the greenhouse effects of flight by slightly changing the flight plan to avoid cloud forming regions Bad news: this generally wasn't counted before and when counted roughly doubles the impact so in some senses you're back to where you started. But it's a much lower hanging fruit than anything else and as yet we're not doing it.

A lot of us is avoiding more by choosing not to fly.

I don't think that not travelling is the solution. A lot of people cannot avoid flying.

Re: JetZero

#137

Earlier quoted context omitted.

I've been that guy, but only if the scenery is interesting. Still, my attitude is that at noon, people don't need to have a blanket placed over their cage like parrots to make them sleep. I also was on a flight once that had a very bouncy landing with all the windows down - when I didn't realize we were anywhere near the ground yet. I'm not into tuning out reality to that degree, and don't really feel obligated to he…

Regulations require that window shades be up (open) during take off and landing. I was sitting next to a passenger once who was asked by the steward to raise the window shade. While doing it, they asked "why". Answering for the steward I said "it's so Fire and Rescue can see into the plane if we crash". (Which is true, I used to work at airport fire and rescue.) The steward looked at me with a "that's not helpful" lo…

Isn’t it also so you can look out to see if the emergency exits on that side are usable or if there is a fire or excessive debris blocking the exit?

Re: JetZero

#138

Earlier quoted context omitted.

There are many reasons for a lot of things, until you overcome those reasons. That's the point of innovation. There are many reasons not to make a reusable rocket too.

Yes, but this "innovation" (as sold) must exist as a viable commercial airplane. So far, I see zero evidence that this company has addressed any of the aforementioned challenges beyond theoretical fuel consumption and theoretical passenger logistics. As someone who has 31 hours towards their single-engine ppl cert, I absolutely abhor the stagnation of general and commercial aviation due, largely, to certification bar…

> As someone who has 31 hours towards their single-engine ppl cert,

FFS, have some self-awareness! This is the Dunning-Kruger Effect in practice.

Re: JetZero

#139

An experimental/homebuilt of similar but not exactly the same design, the Dyke Delta https://en.wikipedia.org/wiki/Dyke_Delta of which about 50 have been built, has its pilots reporting a comfortable ride.

Please lookup the flight envelope, cruise fuel utilization, and stall characteristics of the Dyke Delta along with its cargo capacity.

Then you'll understand why so many Cessna 172s were built.

Re: JetZero

#140

An experimental/homebuilt of similar but not exactly the same design, the Dyke Delta https://en.wikipedia.org/wiki/Dyke_Delta of which about 50 have been built, has its pilots reporting a comfortable ride.

It’s also much smaller. The main problem will be that the people sitting outside experience a lot of vertical motion when the aircraft rolls. That’s only a problem with the full scale design.
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