I was recently coaxed into clicking on a fake company's web site that was clearly just designed to collect data on feasibility of flying taxis. Under several monikers, I very much exaggerated my willingness to take them at very high prices in hopes that I would help bring this industry one step closer to reality. I apologize to whatever VC now thinks I will pay $150 each way for a Fresno-SF air taxi.
As an economist, I will reiterate: never trust surveys. Even disguised ones.
We have flying taxis. They're called helicopters and they're pretty much exclusively used by very wealthy people for commute-type scenarios. What is yet to be shown by any of the "giant drone" prototypes I've seen to date is a realistic cost projection showing a ~10x reduction in comparison to a helicopter with similar safety levels within the next 10 years. I have also yet to see how these aircraft will deal with FAA regulations - a flying car is great in theory until you're subject to all the same rules as normal aircraft.
To be thoroughly honest, I said the same thing about Tesla 10 years ago and the technology did in fact get wayyy cheaper. New economic realities are upon us.
But like you said, safety is harder when you are airborne. Can't imagine what NYC would be like with 1000 helicopters in the sky.
I don't see anything about tesla that wasn't reasonably perceivable 10 years ago, or anything like a new economic reality. People have been saying for decades that electric cars will work well if and when we can get the battery cost down a bit.
We haven't seen the kind of reduction above poster is positing in electric cars yet, and that's beyond the 10 year window (and we aren't going to, as drive train isn't enough of the cost).
Yeah, electric cars are all about battery cost which is coming down rapidly due to economies of scale. Tesla was great in taking the initial cost and that together with $7500 tax rebate made them feasible in the beginner.
It looks like they are here to stay, but I would warn they still make a lot less cars at a lower profitability than most major car makers.
Electric fixed wings conceivably are a lot cheaper to maintain than a helicopter, but a lot of the infrastructure costs etc. seem like they'll be similar. You already have helicopter operating out of small pad locations with out security and line ups, etc. All of that has too look pretty similar.
I can see how you might change a $200 15-20 min helicopter ride into a $120 15-20 min VTOL ride profitably, but hard to see how it becomes a $60 ride any time soon...
> I can see how you might change a $200 15-20 min helicopter ride into a $120 15-20 min VTOL ride profitably, but hard to see how it becomes a $60 ride any time soon...
Last I looked, range was an enormous problem.
Let's see. 20 min VTOL ride. 30 minutes reserve "fuel" or 1 hour if IFR. +more "fuel" to reach the alternate airport (if fixed wing) or the nearest landing site. These are recommendations for GA, if you are doing this commercially the requirements may be different (tend to be stricter)
You can get away with a lot if you only fly in clear blue skies in locations with very stable weather. You still need to have plenty of range for unforeseen events. You don't burn off batteries when flying either, so empty or full batteries weight the same.
These things won't get cheap in the short term. Non-helicopter efficient VTOL is pretty hard to do, that doesn't help costs either. Companies would do well in trying to solve one problem first (flying 'vtol' taxis) before trying to solve the other problem (electric airplanes).
I think we are saying basically the same thing - this works only on short runs and the fixed costs are similar. So where are the putative gains? 2x I can see, maybe. But it's a big maybe. 10x seem to be fantasy land. So that means no disruption.
I said I think there obviously can be savings though , just not obvious how it can be of the magnitude to really shift transportation. That’s not at all the same thing as no savings. You save on operation and maintenance costs, but not on infrastructure or staffing.
Just some rough estimates here, a Jetranger helicopter costs ~$1000/hr to charter. Assuming the helicopter's 300 kW engine was magically replaced with electric batteries, that's only ~$30/hr for energy. And an eVTOL will be far more energy efficient in forward flight and at idle than a helicopter.
So I could see a path to 10x improvement by eliminating the pilot and keeping utilization high. Even if you budget $100/hour maintenance cost, the cost can be far lower than conventional helicopters.
To be fair, autonomous flight is probably an order of magnitude easier than autonomous driving. Particularly because it's far more predictable and you can put beacons on drones to automatically avoid collisions.
The sky is mostly empty space and landing zones are clearly marked and purpose built. You don't have to worry about any pedestrians or unpredictable drivers or roads.
That's why I mentioned beacons for collision avoidance. They wouldn't be expensive. If we're about to build this industry from the ground up I would expect to see something like that done anyway.
Flying is an order of magnitude worse than driving energy-wise. Even with electric motors it's still going to be a problem. Tesla travels for about 300Wh/mile, I doubt any flying machine would be within 10x of that.
> You don't have to worry about any pedestrians or unpredictable drivers...
Actually you do. Most airspace is uncontrolled, where the collision avoidance algorithm is "see and avoid". There are plenty of airspace users who do not broadcast any kind of beacon apart from being visible to other pilots.
You could demand that they all wear electronic beacons. Such technologies do exist. However they aren't currently predicted to work well enough in the expected congestion created by large numbers of autonomous aircraft in the future. And it faces most of the same practical challenges as putting beacons on pedestrians and all other road users.
That is not fair. Autonomous flight is just as hard as autonomous driving due to the need to handle mechanical failures. If something breaks in the air you can't just pull over and stop. Current autopilots are generally unable to cope with failures and rely upon a qualified human pilot being ready to take back control within a few seconds.
No, it's not just eliminating the pilot, although yes electric making that easier is one aspect.
An electric aircraft can have multiple engines (to wit: an octocopter) rather than just one a turbine that is a both high tolerance technological marvel and high maintenance. They don't need to long high speed blades whirring above to achieve VTOL, they can have small propellers in cowling's. They don't have to carry lots of highly flammable fuel that is highly likely to start a fire in suburbia ifthey become ubiquitous. With luck they will have solid state batteries. They don't need spinning wings under high stress, they can have passive wings that glide naturally. They don't need a big heavy engine to generate the power needed for takeoff, as powerful electric engines are powerful yet small, light and easily redirected without a gear train.
A lot of things change. Admittedly some are way worse for electric, like flight endurance - and so it's no coincidence we are talking about taxi's here, not long haul fights. But when it comes to taxi's most things are improvements over ICE engines we have now. Thinking it is just about the presence or absence of a pilot is simplifying things way too much.
Fuel only makes up a small part of that $1000. The lion's share of the hourly charge goes towards paying off the amortised cost of buying and maintaining the helicopter itself. If you magically eliminated the costs for fuel and for the pilot, you're still probably paying $700+/hr.
@mdorazio - agreed that helicopters today are largely reserved for the commutes of the wealthy, and they are also too loud for most cities (outside of NYC and Sao Paulo) to tolerate at any meaningful scale.
My team and I published a whitepaper in 2016 that goes into detail on the cost projections for electric VTOL: uber.com/elevate.pdf.
You don't quite need a 10x reduction -- helis are ~$10/passenger-mile today and an Uber X is about $1.50, so you need a 6-7x reduction to be on par. You get ~30% from the new vehicle (electric, more efficient) and you get the remainder from higher utilization and low factors enabled by the lower cost and noise. Scaled manufacturing and autonomy get you to ~$0.50/passenger-mile which is on par with the variable price of car ownership.
Add -- the utilization and load factor efficiencies apply to helicopters today, we are proving that with Uber Copter in NYC: https://www.uber.com/blog/new-york-city/uber-copter/ -- ~$200 from Manhattan to JFK
”One might imagine that the Federal Aviation Administration is fully in charge of Manhattan’s crowded airspace. But the agency isn’t even aware how many helicopters hover over the city on a daily basis. The FAA doesn’t generally monitor chopper traffic, which operates under Visual Flight Rules (VFR): Unless pilots approach an airport, they’re required to communicate only with other pilots in nearby crafts, and not with air traffic control. This means that depending on where a given pilot is, they may not have to speak with anybody at all.”
Presumably, these would, too (until too many accidents occur)
> Most helicopters fly without air traffic control, under visual flight rules.
So that's a strangely-worded statement. Let me unpack it ...
Almost all helicopters are not IFR-equipped or operated under IFR (including EMS), so they must fly under visual meteorological conditions using VFR rules.
And although they can fly without ATC facilities in some airspace, usually they use ATC for takeoff and landings to airports, and arrivals and departures to airports, and for position reports.
So what you meant to say was, "Almost all helicopters fly under VMC conditions using VFR rules, and communicate with ATC except when they are in an airspace where they're not required to.
But they do broadcast Mode-C and ADS-B at all times in airspace that requires it, which goes to ATC:
1) Urban areas have a lot of towers and wires to fly low
2) A single accident with pax will kill an air-taxi business
3) comfortable 4 pax helicopters are $2 million each, so aerospace and affordable don't go together. Eclipse tried to make a cheap jet using "friction-stir welding", so that was the gimmick last time around.
4) FAA has "one level of safety" - there's no exception for wannabe "disrupters"
On #4, the FAA actually has multiple levels of safety. Small airplanes, including even some small jets, are certified to part 23 standards. Airliners are certified to part 25 standards, which are more stringent.
Even operationally, a part 121 operator (schedule airline) has the strictest requirements, followed by a part 135 operator (on-demand charter), followed by a part 91 (private, not for hire).
An air-taxi would be 135 by definition. It's easier than 121 but not that much easier.
But if the taxis do not require pilots (perfectly reasonable for air travel) and electric engines do require much less maintenance, satisfying 135 regulations can become easier than satisfying 91 with normal planes.
Disruption is done by increasing the quality of your equipment. It's perfectly viable, although it has to follow a slow certification schedule.
> On #4, the FAA actually has multiple levels of safety.
No, you're misinformed. From an operating standpoint, when you carry more than 10 pax, all operators are treated like an airline. There are different Parts but the end effect is the same for 121 and 135:
Regardless of a myriad of safety, insurance and licensing questions: how much more energy will it use (that will just add to climate change) than ground transportation?
I already have a lot of helicopters flying over our place. Unless they solve the noise problem I sincerely hope flying taxis won't take off. I really don't need more noise.
A single car driving on the street only affects the homes that knowingly bought a car on the busy street. A helicopter, or 1000 of them per day, affects about 90x more homes on a single pass.
They need to start making zones of quiet/loud at this point. I travel the country and I can't believe the number of places where you just hear airplanes, __all__ day long, including after 1am. Sometimes it's a helicopter. It gets really aggravating that the helicopter (on flight radar) turns out to just be a private owner, at 1 am.
Basically having their fun at your expense and about 2000 - 20000 other people that have to hear it.
It's getting worse. I feel like the flight school things is extremely out of control. It used to be a few flights a day at specific airports. Now flight schools are operating out of pretty much any city with greater than about 15000 people, and what is worse they flight right over the town, and then up to 200 miles out. Then they reach their loop area and just loop. You end up hearing them pass over about 30 times an hour when they do this.
So I just cringe when I see comments in here about how the sky is mostly unused space, why don't we just cram it full of noisy shit.
Just feel obligated to post two articles, from 2004 and 2006, about the imminent proliferation of air taxis. This isn't to disparage the author, Rich Karlgaard, who was (is?) simply very optimistic and enthusiastic about private air travel. But the history of the companies he discusses -- Adam Aircraft, POGO, DayJet -- demonstrates that the viability of air taxis is highly, highly questionable.
Whenever I read about air such ideas this the question is can the costs be lowered enough enough for wider usage. Before we even get to the operating and purchase cost of the air craft. All these taxi ideas seem always over look one the largest costs.
The biggest problem short taxi like air travel tend forget about is the infrastructure. Your going to need a lot of landing and take off locations for it to be any use. You just can't land anywhere unless you have pilot that can see areas clear of cars, power lines, and people or other hazards. So any autonomous system is going to need lots landing and take off areas. Even with a pilot they probably would still be needed.
The next largest costs of an air-craft is generally initial purchase. Then the required on going maintenance to ensure the air-frame remains safe. While an all aircraft electric may reduce the mechanical complexity. It does nothing to reduce the labour cost per hour required to inspect an air-frame, and repair. Also unlikely traditional aircraft a battery pack is more complex than a fuel tank, any problems with it can be dangerous for any aircraft that do not use a fixed wing design.
Also with a completely electric air craft energy density is even more important than a car. This effectively limits them to short distances. While energy costs may be lower than fuel. Fuel for small aircraft is cheaper than a lot people realize.
Lastly, while getting rid of a pilot for routine flight is already in our technological grasp. Unsurprisingly any failures or sudden problem are going to be hard to handle. For instance how would an autonomous air-craft choose a safe landing location if it detects problem that requires landing right away. A busy street would be less than ideal where as a human could easily see less occupied areas. It also would need to make sure that there are not tree branches or power lines are crossing any part of it's chosen landing zone. It would also need to detect that it's not landing on anything like a car or anything else.
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[ 4.9 ms ] story [ 267 ms ] threadAs an economist, I will reiterate: never trust surveys. Even disguised ones.
But like you said, safety is harder when you are airborne. Can't imagine what NYC would be like with 1000 helicopters in the sky.
We haven't seen the kind of reduction above poster is positing in electric cars yet, and that's beyond the 10 year window (and we aren't going to, as drive train isn't enough of the cost).
It looks like they are here to stay, but I would warn they still make a lot less cars at a lower profitability than most major car makers.
I can see how you might change a $200 15-20 min helicopter ride into a $120 15-20 min VTOL ride profitably, but hard to see how it becomes a $60 ride any time soon...
You have that on general aviation too, today.
> I can see how you might change a $200 15-20 min helicopter ride into a $120 15-20 min VTOL ride profitably, but hard to see how it becomes a $60 ride any time soon...
Last I looked, range was an enormous problem.
Let's see. 20 min VTOL ride. 30 minutes reserve "fuel" or 1 hour if IFR. +more "fuel" to reach the alternate airport (if fixed wing) or the nearest landing site. These are recommendations for GA, if you are doing this commercially the requirements may be different (tend to be stricter)
You can get away with a lot if you only fly in clear blue skies in locations with very stable weather. You still need to have plenty of range for unforeseen events. You don't burn off batteries when flying either, so empty or full batteries weight the same.
These things won't get cheap in the short term. Non-helicopter efficient VTOL is pretty hard to do, that doesn't help costs either. Companies would do well in trying to solve one problem first (flying 'vtol' taxis) before trying to solve the other problem (electric airplanes).
Helicopter infrastructure is so cheap that there are many places with a pad that is just used for emergencies.
So, the question is the other way around: why do you think there can't be savings?
Do you think this is incorrect ?
So I could see a path to 10x improvement by eliminating the pilot and keeping utilization high. Even if you budget $100/hour maintenance cost, the cost can be far lower than conventional helicopters.
This is called putting the bell on the cat. Or Belling the cat.
https://en.wikipedia.org/wiki/Belling_the_Cat
The sky is mostly empty space and landing zones are clearly marked and purpose built. You don't have to worry about any pedestrians or unpredictable drivers or roads.
Actually you do. Most airspace is uncontrolled, where the collision avoidance algorithm is "see and avoid". There are plenty of airspace users who do not broadcast any kind of beacon apart from being visible to other pilots.
You could demand that they all wear electronic beacons. Such technologies do exist. However they aren't currently predicted to work well enough in the expected congestion created by large numbers of autonomous aircraft in the future. And it faces most of the same practical challenges as putting beacons on pedestrians and all other road users.
An electric aircraft can have multiple engines (to wit: an octocopter) rather than just one a turbine that is a both high tolerance technological marvel and high maintenance. They don't need to long high speed blades whirring above to achieve VTOL, they can have small propellers in cowling's. They don't have to carry lots of highly flammable fuel that is highly likely to start a fire in suburbia ifthey become ubiquitous. With luck they will have solid state batteries. They don't need spinning wings under high stress, they can have passive wings that glide naturally. They don't need a big heavy engine to generate the power needed for takeoff, as powerful electric engines are powerful yet small, light and easily redirected without a gear train.
A lot of things change. Admittedly some are way worse for electric, like flight endurance - and so it's no coincidence we are talking about taxi's here, not long haul fights. But when it comes to taxi's most things are improvements over ICE engines we have now. Thinking it is just about the presence or absence of a pilot is simplifying things way too much.
Source: https://www.aneclecticmind.com/2017/08/07/about-helicopter-f...
My team and I published a whitepaper in 2016 that goes into detail on the cost projections for electric VTOL: uber.com/elevate.pdf.
You don't quite need a 10x reduction -- helis are ~$10/passenger-mile today and an Uber X is about $1.50, so you need a 6-7x reduction to be on par. You get ~30% from the new vehicle (electric, more efficient) and you get the remainder from higher utilization and low factors enabled by the lower cost and noise. Scaled manufacturing and autonomy get you to ~$0.50/passenger-mile which is on par with the variable price of car ownership.
The FAA is extremely supportive of certifying these aircraft -- here is the Administrator Dickson speaking to that directly yesterday: https://evtol.com/news/dickson-faa-15-evtol-aircraft/
Add -- the utilization and load factor efficiencies apply to helicopters today, we are proving that with Uber Copter in NYC: https://www.uber.com/blog/new-york-city/uber-copter/ -- ~$200 from Manhattan to JFK
”One might imagine that the Federal Aviation Administration is fully in charge of Manhattan’s crowded airspace. But the agency isn’t even aware how many helicopters hover over the city on a daily basis. The FAA doesn’t generally monitor chopper traffic, which operates under Visual Flight Rules (VFR): Unless pilots approach an airport, they’re required to communicate only with other pilots in nearby crafts, and not with air traffic control. This means that depending on where a given pilot is, they may not have to speak with anybody at all.”
Presumably, these would, too (until too many accidents occur)
So that's a strangely-worded statement. Let me unpack it ...
Almost all helicopters are not IFR-equipped or operated under IFR (including EMS), so they must fly under visual meteorological conditions using VFR rules.
And although they can fly without ATC facilities in some airspace, usually they use ATC for takeoff and landings to airports, and arrivals and departures to airports, and for position reports.
So what you meant to say was, "Almost all helicopters fly under VMC conditions using VFR rules, and communicate with ATC except when they are in an airspace where they're not required to.
But they do broadcast Mode-C and ADS-B at all times in airspace that requires it, which goes to ATC:
https://www.rotor.org/resource?ArtMID=493&ArticleID=1061
1) Urban areas have a lot of towers and wires to fly low
2) A single accident with pax will kill an air-taxi business
3) comfortable 4 pax helicopters are $2 million each, so aerospace and affordable don't go together. Eclipse tried to make a cheap jet using "friction-stir welding", so that was the gimmick last time around.
4) FAA has "one level of safety" - there's no exception for wannabe "disrupters"
Even operationally, a part 121 operator (schedule airline) has the strictest requirements, followed by a part 135 operator (on-demand charter), followed by a part 91 (private, not for hire).
But if the taxis do not require pilots (perfectly reasonable for air travel) and electric engines do require much less maintenance, satisfying 135 regulations can become easier than satisfying 91 with normal planes.
Disruption is done by increasing the quality of your equipment. It's perfectly viable, although it has to follow a slow certification schedule.
No, you're misinformed. From an operating standpoint, when you carry more than 10 pax, all operators are treated like an airline. There are different Parts but the end effect is the same for 121 and 135:
https://www.avweb.com/features/full-text-of-the-faas-new-one...
"One level of safety" is an FAA term, and describes their philosophy when there are paying passengers.
The moment it causes a death, the dates will be pushed ahead by a few years, and VC money will dry down meanwhile.
Basically having their fun at your expense and about 2000 - 20000 other people that have to hear it.
It's getting worse. I feel like the flight school things is extremely out of control. It used to be a few flights a day at specific airports. Now flight schools are operating out of pretty much any city with greater than about 15000 people, and what is worse they flight right over the town, and then up to 200 miles out. Then they reach their loop area and just loop. You end up hearing them pass over about 30 times an hour when they do this.
So I just cringe when I see comments in here about how the sky is mostly unused space, why don't we just cram it full of noisy shit.
https://www.forbes.com/forbes/2004/0816/037.html#f6e57154f3a...
https://www.forbes.com/free_forbes/2006/0918/043.html?partne...
The biggest problem short taxi like air travel tend forget about is the infrastructure. Your going to need a lot of landing and take off locations for it to be any use. You just can't land anywhere unless you have pilot that can see areas clear of cars, power lines, and people or other hazards. So any autonomous system is going to need lots landing and take off areas. Even with a pilot they probably would still be needed.
The next largest costs of an air-craft is generally initial purchase. Then the required on going maintenance to ensure the air-frame remains safe. While an all aircraft electric may reduce the mechanical complexity. It does nothing to reduce the labour cost per hour required to inspect an air-frame, and repair. Also unlikely traditional aircraft a battery pack is more complex than a fuel tank, any problems with it can be dangerous for any aircraft that do not use a fixed wing design.
Also with a completely electric air craft energy density is even more important than a car. This effectively limits them to short distances. While energy costs may be lower than fuel. Fuel for small aircraft is cheaper than a lot people realize.
Lastly, while getting rid of a pilot for routine flight is already in our technological grasp. Unsurprisingly any failures or sudden problem are going to be hard to handle. For instance how would an autonomous air-craft choose a safe landing location if it detects problem that requires landing right away. A busy street would be less than ideal where as a human could easily see less occupied areas. It also would need to make sure that there are not tree branches or power lines are crossing any part of it's chosen landing zone. It would also need to detect that it's not landing on anything like a car or anything else.