Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.
View this topic in a long page with up to 500 replies per page Create new topic
1 | ... | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16
2459 posts

Uber Geek
+1 received by user: 1205

Lifetime subscriber

  Reply # 1870737 22-Sep-2017 09:46
Send private message

A bit of a tangent, but interested people might want to look at https://en.wikipedia.org/wiki/Fuel_economy_in_aircraft

 

The most efficient aircraft per passenger is a Bombardier CS300 over a range of 1900km... 1.85L/100km. That compares well to most ICE cars if they're carrying less than 3 or 4 people. Of course, 4 people in a car is about as cramped as as airline seats. A full 63-seat bus averages 0.41L/100km per seat.

 

 


954 posts

Ultimate Geek
+1 received by user: 222

Trusted
Subscriber

  Reply # 1870788 22-Sep-2017 09:57
One person supports this post
Send private message

frankv:

 

A bit of a tangent, but interested people might want to look at https://en.wikipedia.org/wiki/Fuel_economy_in_aircraft

 

The most efficient aircraft per passenger is a Bombardier CS300 over a range of 1900km... 1.85L/100km. That compares well to most ICE cars if they're carrying less than 3 or 4 people. Of course, 4 people in a car is about as cramped as as airline seats. A full 63-seat bus averages 0.41L/100km per seat.

 

 

For fun I checked what it is for Concorde; 16.7L/100km per seat... [same wiki article above]





Procrastination eventually pays off.




Mad Scientist
19012 posts

Uber Geek
+1 received by user: 2469

Trusted
Lifetime subscriber

  Reply # 1870808 22-Sep-2017 10:10
One person supports this post
Send private message

frankv:

 

A bit of a tangent, but interested people might want to look at https://en.wikipedia.org/wiki/Fuel_economy_in_aircraft

 

The most efficient aircraft per passenger is a Bombardier CS300 over a range of 1900km... 1.85L/100km. That compares well to most ICE cars if they're carrying less than 3 or 4 people. Of course, 4 people in a car is about as cramped as as airline seats. A full 63-seat bus averages 0.41L/100km per seat.

 

 

 

 

CO2 does not care about L/100km, it is released when it is released. So driving 10 km a day vs flying 10,000kms, that's 1000 days of driving. Or 3 years (assuming some days you stay at home).


2459 posts

Uber Geek
+1 received by user: 1205

Lifetime subscriber

  Reply # 1870867 22-Sep-2017 11:16
2 people support this post
Send private message

Batman:

 

frankv:

 

A bit of a tangent, but interested people might want to look at https://en.wikipedia.org/wiki/Fuel_economy_in_aircraft

 

The most efficient aircraft per passenger is a Bombardier CS300 over a range of 1900km... 1.85L/100km. That compares well to most ICE cars if they're carrying less than 3 or 4 people. Of course, 4 people in a car is about as cramped as as airline seats. A full 63-seat bus averages 0.41L/100km per seat.

 

 

 

 

CO2 does not care about L/100km, it is released when it is released. So driving 10 km a day vs flying 10,000kms, that's 1000 days of driving. Or 3 years (assuming some days you stay at home).

 

 

I don't understand what point you're trying to make.

 

If I want to travel 1900km (e.g. Invercargill to Auckland, ignoring the fact that part of that is a ferry, so perhaps more realistically San Francisco to Houston) then, unless I have 3 or 4 people in my car, I will cause less carbon dioxide emissions if I fly in a full Bombardier CS300.

 

Whether I do the drive in one mammoth day or spread it over 3 years, it will use the same amount of fuel, and therefore emit the same amount of carbon dioxide.

 

 


6063 posts

Uber Geek
+1 received by user: 1831

Trusted

  Reply # 1871124 22-Sep-2017 16:40
One person supports this post
Send private message

 





 


2523 posts

Uber Geek
+1 received by user: 970

Lifetime subscriber

  Reply # 1871125 22-Sep-2017 16:41
3 people support this post
Send private message

Get CSI Ruakaka on the line...


7393 posts

Uber Geek
+1 received by user: 3863


  Reply # 1871152 22-Sep-2017 17:24
Send private message

Coil:

 

 

 

 

LOL - to CSI comment.

 

I edited to add links if you click images above to full size images.

 

So much for the BS claims by a certain politician also involved in the swamp kauri business - that the pipes "corroded" after the coating was damaged - some time ago.


4422 posts

Uber Geek
+1 received by user: 2429

Trusted

  Reply # 1871157 22-Sep-2017 17:39
Send private message

Someone will know they were responsible for that damage and be perhaps waiting for a knock on their door.


263 posts

Ultimate Geek
+1 received by user: 48


  Reply # 1871160 22-Sep-2017 17:46
3 people support this post
Send private message

DarthKermit:

 

Someone will know they were responsible for that damage and be perhaps waiting for a knock on their door.

 

 

 

 

Or they will be on the first plane out of here.... Oh wait :P





467 posts

Ultimate Geek
+1 received by user: 100


  Reply # 1871282 23-Sep-2017 03:12
Send private message

sbiddle:

 

This is also one of the fundamental issues when people talk about planes that can fly from NZ to the UK in the future. When you start approaching (or exceeding) a 20hr flight you're actually burning a huge amount of fuel just to carry the fuel required for such a distance. Does that actually stack up? Not necessarily. If you look at Qantas with their PER to LHR flights they have a very low density cabin to try and maximise passenger comfort for an 18hr flight.

 

The downside of this is more fuel + less passengers = more cost to the airline which ultimately means higher fares.

 

Given the choice of a 20ish hour flight from AKL to LHR direct when it becomes possible vs a 12hr and 10hr flight with a stopover I'd still far prefer the stopover.

My WLG -> BOS calculus is as follows:

 

In order of most preferred at top to least preferred at bottom:

 

1. WLG->AKL->JFK/ORD->BOS (hypothetical of course)

 

2. WLG->AKL->HOU->BOS

 

3. WLG->AKL->SFO->BOS

 

4. WLG->AKL->LAX->BOS

 

Primary reason for this ranking? Spending as little time domestically on US carriers as possible. More than happy to pay more for less time on United or AA.  JFK is such a pain of an airport to enter the US on though, so it would be a toss up between JFK and ORD (Boston is just as bad, but by then its a domestic flight).  Layovers in CA can be brutal too (11hrs+), with only a couple of coast-coast flights to Boston.

 

 

 

I have family doing the run next week and they've been told by AirNZ to not expect any disruption which is great.


BDFL - Memuneh
61323 posts

Uber Geek
+1 received by user: 12065

Administrator
Trusted
Geekzone
Lifetime subscriber

  Reply # 1873206 26-Sep-2017 16:05
Send private message

Today's update:

 

 

Auckland Airport operations are returning to business as usual as progress continues to be made restoring supply via the fuel pipeline, Energy and Resources Minister Judith Collins says.

 

“The fuel industry remains cautiously optimistic as solid progress is being made. The pipeline will be operating at its current allowable capacity from late today and jet fuel allocations were increased from 50 to 80 per cent effective midnight last night,” Ms Collins says.

 

“Two million litres of jet fuel has now arrived at Auckland Airport’s JUHI storage facility, and 15 million litres is expected to be available by the end of the week.”

 

Trucks have begun transporting jet fuel from the 1.5 million litres stored at Wynyard Wharf, and jet fuel continues to be trucked from the Marsden Point refinery to the Airport.

 

“Stocks of both jet fuel and fuel for Auckland motorists are replenishing. In the coming days the fuel industry will be looking at the sequencing of different types of fuel down the pipeline. This takes us a further step toward normal supply.”

 

“While the situation is improving day-by-day, there continues to be a lot of work going on behind the scenes. I’m particularly impressed by the way industry has worked together to minimise disruption as much as possible.

 

“Government continues to be closely involved in monitoring the situation and remains on stand-by to provide further assistance if required,” Ms Collins says.

 

“It may be another week before the allocation to airlines is back at 100% but they are doing a great job at managing this constraint.

 

“Flights in and out of Auckland Airport have now largely returned to normal operations, with only three international flight cancellations today. No domestic flights have been cancelled.”

 





4422 posts

Uber Geek
+1 received by user: 2429

Trusted

  Reply # 1873208 26-Sep-2017 16:07
Send private message

So much for a fossil fuel free future. I can't see no electric planes taking off any time soon.




Mad Scientist
19012 posts

Uber Geek
+1 received by user: 2469

Trusted
Lifetime subscriber

  Reply # 1873243 26-Sep-2017 16:55
One person supports this post
Send private message

ONE flight out of New Zealand to any other continent probably uses more fuel than my family's entire fleet of cars in our lifetime combined


4422 posts

Uber Geek
+1 received by user: 2429

Trusted

  Reply # 1873245 26-Sep-2017 16:59
Send private message

Reminds me of a story I heard a few years ago. Brad Pitt (think it was him) was driving a hybrid car while at the same time he's got a private jet. Now which one produces a huge amount more Co2?


2523 posts

Uber Geek
+1 received by user: 970

Lifetime subscriber

  Reply # 1873280 26-Sep-2017 18:37
Send private message

DarthKermit:

 

Reminds me of a story I heard a few years ago. Brad Pitt (think it was him) was driving a hybrid car while at the same time he's got a private jet. Now which one produces a huge amount more Co2?

 

 

That would be right. There are plenty of 'liberal elite' Hollywood types virtue signalling about poverty and global warming while swanning from one party to the next in their private jets and helicopters.

 

 


1 | ... | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16
View this topic in a long page with up to 500 replies per page Create new topic

Twitter »

Follow us to receive Twitter updates when new discussions are posted in our forums:



Follow us to receive Twitter updates when news items and blogs are posted in our frontpage:



Follow us to receive Twitter updates when tech item prices are listed in our price comparison site:



Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.

Alternatively, you can receive a daily email with Geekzone updates.