On Fri, 06 Jul 2007 02:35:46 -0700, Boltar
wrote:

On 6 Jul, 09:56, Adrian wrote:
Boltar ) gurgled happily, sounding much like they
were saying :

I saw on TV not long ago something about Hybrid buses being used in
London - not those hopeless fuel cell things but a diesel engine plus
electric motor. Are these out and about yet?

February 2006.http://www.tfl.gov.uk/corporate/medi...ntre/3680.aspx

And double-deckers since November 2006.http://news.bbc.co.uk/1/hi/england/london/6102806.stm

Anyone know what routes?

Single decks are on the 360 (South Ken - Elephant) and the double deck
is normally scheduled for the 141 (London Bridge - Palmers Green) but I
believe it is away for further mods at present.

An ethanol powered Scania double deck is scheduled for use on the 148
but it's not been passed for operation yet.

--
Paul C


Admits to working for London Underground!

Boltar ) gurgled happily, sounding much like they
were saying :

From the first link...

The hybrids will operate on route 360, run by London Central, from
tomorrow, Wednesday, 8 February 2006.

I had spotted it. That was 18 months ago however.

I doubt they've been moved to another route, because to do so would make
the long-term trial results more difficult to interpret.

From the second link...

When it returns to London it will operate on the route between Wood
Green and London Bridge.

And that is the number what?

http://www.google.co.uk/search?q=woo...don+bridge+bus

On 6 Jul, 11:16, Adrian wrote:
shrug
How often do bus engines require full power? Not very.

Agreed but when they do need it they really need it. The steep hills
around mill hill, highgate , hampstead and southgate spring to mind. A
hybrid bus with an exhausted battery going up one of those hills won't
be very popular with other motorists.

B2003

Boltar ) gurgled happily, sounding much like they
were saying :

shrug
How often do bus engines require full power? Not very.

Agreed but when they do need it they really need it. The steep hills
around mill hill, highgate , hampstead and southgate spring to mind. A
hybrid bus with an exhausted battery going up one of those hills won't
be very popular with other motorists.

Nor would a diesel bus with an empty fuel tank...

I really don't think it's going to be an issue.

In article , aooy65
@dsl.pipex.com says...


Single decks are on the 360 (South Ken - Elephant) and the double deck
is normally scheduled for the 141 (London Bridge - Palmers Green) but I
believe it is away for further mods at present.

An ethanol powered Scania double deck is scheduled for use on the 148
but it's not been passed for operation yet.


From LOTS News Sunday 24 June

1) The Wrights Hybrid d/d HEV1 with Arriva was taken back to Wrights at
Ballymena on 18th June for mods to the system that keeps the traction
battery pack cool and which needs to be replaced by a more robust
system. It is unlikely to be back in London much before the end of
July.

Boltar wrote:
On 6 Jul, 11:16, Adrian wrote:
shrug
How often do bus engines require full power? Not very.

Agreed but when they do need it they really need it. The steep hills
around mill hill, highgate , hampstead and southgate spring to mind.

Even if the buses were unsuitable for those areas, that's only about a dozen
routes. You wouldn't say that double deckers will never work in London
because of the Rotherhithe Tunnel.

On 6 Jul, 11:35, Adrian wrote:
Boltar ) gurgled happily, sounding much like they
were saying :

shrug
How often do bus engines require full power? Not very.
Agreed but when they do need it they really need it. The steep hills
around mill hill, highgate , hampstead and southgate spring to mind. A
hybrid bus with an exhausted battery going up one of those hills won't
be very popular with other motorists.

Nor would a diesel bus with an empty fuel tank...

I really don't think it's going to be an issue.

A buses diesel fuel probably lasts all day. If these hybrid buses are
anything like hybrid cars then the battery would run down after only a
few miles without topping up which means its quite possible the bus
could be relying on engine power alone on difficult routes such as I
mentioned if the engine doesn't have the surplus to charge the battery
as well as supplying the motors.

B2003

Boltar ) gurgled happily, sounding much like they
were saying :

shrug
How often do bus engines require full power? Not very.

Agreed but when they do need it they really need it. The steep hills
around mill hill, highgate , hampstead and southgate spring to mind. A
hybrid bus with an exhausted battery going up one of those hills won't
be very popular with other motorists.

Nor would a diesel bus with an empty fuel tank...

I really don't think it's going to be an issue.

A buses diesel fuel probably lasts all day.

And...?

If these hybrid buses are anything like hybrid cars then the battery
would run down after only a few miles without topping up which means its
quite possible the bus could be relying on engine power alone on
difficult routes such as I mentioned if the engine doesn't have the
surplus to charge the battery as well as supplying the motors.

But the engine'll be keeping the batteries brimmed as much as possible, so
it'll arrive at the bottom of the hill with full charge - which will be
perfectly adequate for the ascent. Don't forget that the only real
restriction on battery capacity in hybrid cars is the physical packaging
constraints - which just don't apply to a bus.

On Fri, 06 Jul 2007 03:13:00 -0700, Boltar
wrote:

When it returns to London it will operate on the route between Wood
Green and London Bridge.

And that is the number what?

http://just****inggoogleit.com/

On 6 Jul, 16:01, James Farrar wrote:
On Fri, 06 Jul 2007 03:13:00 -0700, Boltar
wrote:

When it returns to London it will operate on the route between Wood
Green and London Bridge.

And that is the number what?

http://just****inggoogleit.com/

Thanks for the useful input to the discussion.

B2003