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Old 26 March 2006, 11:37   #111
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Originally Posted by DGR
Which jet is that? I struggle with the concept that any jet powered aircraft only uses 0.3 ltr per mile. A RIB however......now that would be nice...



Erm...the contrails are the result of the fuel burn......it's water vapour and exhaust gases that leave the trail - and because they are ionised, they are bad...

Same thing really.

D...
Actually about 0.5l per mile - still not bad!!!

http://www.eclipseaviation.com/eclip...pecifications/

New budget exec jet that will bring such travel to the masses - built using latest technologies and mass produced - they have advanced orders for 2,000!!! Work out at about $1,200,000 which IS dead cheap for such a plane!!!

Contrails are NOT only result of fuel burn - you can just as easily get them from wingtips!!! Even a hydrogen burning engine would leave a contrail - it is purely steam.
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Old 26 March 2006, 12:50   #112
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Quote:
Originally Posted by Alice
I'm no 'Anti', both of our cars are 4x4. But, no way are MPV's as juicy as 4x4's. Our's do 25ish, one will nudge 30mpg on a run. My Old Man has a VW T4 Camper 2.5TDI that does 36ish and 42 on a run. It has the Aero dynamics of a barn door. It's dragging all that extra transmission around that does the damage with the 4x4's.
So I'm doing the same MPG as you are whilst I'm towing!! Very environmentally friendly.

Chris
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Old 26 March 2006, 12:55   #113
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Quote:
Originally Posted by roycruse
Air travel ??? - I heard that per person per mile jumbos burn less fuel than a 50cc moped...
Please tell me you don't honestly believe that???

We are gonna have to move on to the education system to gripe about in a minute!!

I work very close to Heathrow and in some weather conditions you can TASTE the AvGas in areas of Hounslow!!!!! Brown exhaust trails head off into the distance after every plane.

Plus Heathrow is a city in its own right and all their impact on the environment needs to be taken into account too.

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Old 26 March 2006, 13:11   #114
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After looking up the price of AvGas I have decided to splash out and buy the new Mercury engine.

It runs on AvGas a whole host of other stuff. If you ran out of juice you could get a round in at the yacht club bar and you'll be back on the water faster than you could say Jim Bean!

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Old 26 March 2006, 14:54   #115
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Please tell me you don't honestly believe that???
Roy's not far off - see my earlier post.

However, as you say not as simple the carbon emission per person.

Interesting (but quite detailed) report here:

http://www.sei.se/aviation/SEI-Aviation-Report.pdf

discusses impact of height differences etc.

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