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When a commercial airliner is at the gate, its onboard
systems are connected to the airports power source.
once it leaves the gate and taxis to the runway,
running its own engines for power. Delays on the
waste fuel and are a significant source of pollution
instead of taxiing under their own power, they should
be towed along a rail built into the taxiway, that could
supply electricity for the planes electricals from the
airports power grid. It wouldnt start its own engines
it was ready for takeoff, reducing the amount of idle
and fuel burned.
inspiration for this idea
New Software Gets Planes Rolling Directly to Runway, Reducing Fuel Burn & Taxi Time [a1, Oct 02 2021]
[a1, Oct 04 2021]
Really long extension cords. Very wordy report but lots of pictures too! [a1, Oct 04 2021]
MagSafe charging cable
Or this? [Frankx, Oct 05 2021]
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||Contine the rail up a ramp on pylons so the engines don't need to start until after takeoff
||A really quite reasonable, sensible idea.
||Sorry for being sensible and not especially funny.
[pocmloc]s suggested addition may overlap with
some other HB ideas already
linked in this category - like electric assisted
takeoff, roller coaster takeoff - but make it more
||+ Sensible isnt half bad!
||Nice idea. I think purely for visual appeal, Id
prefer a solution in which aeroplanes had
pantographs mounted on the top to collect power
from overhead power cables, as trains and trams
do. Actually, why cant the tail fin of the
aeroplane do this?
A variation of this would
be to have a wire mesh ceiling covering most of
the airport such that the aeroplanes could pick up
power from it using the same approach as dodgems
or bumper cars.
The logical endpoint of
[pocmloc]s idea is installing airports with truly
massive versions of the catapults they use on
aircraft carriers to get planes airborne.
||Overnight I was going the other way, from cool
looking to dull. To make this work with the least
amount of redesign on the aircraft, I figured the
rail system would uses tractor, Each with a tow-
hook to pull the plane along, and an electric cable
to power the planes on board system.
||//To make this work with the least amount of
redesign on the aircraft// - I fear that the
powerful and influential pantograph
lobby will be knocking on your door
||// the powerful and influential pantograph lobby
will be knocking on your door
||Thats okay. I have some neat ideas for baggage
handling, loading and unloading, that might
||I think several ideas here were on this line, and afair they
were knocked down by the pros as patented baked and will
all be operational in the near future before 2003.
||Doing a little small plane piloting in my past I know
that you also use the taxi procedure to test your
engines by revving them up. All airports also already
have those little cars that tow them so if the fuel
issue is worth addressing you could probably just
start using them.
||//you also use the taxi procedure to test your
engines// - that makes sense; I can see how
waiting until youre actually airborne before
finding out that your engines dont work might be
a bad thing
||Yes, but a commercial airliner dont run
that test all the way from the gate to the runway.
And as big jets being different from small planes,
commercial airports often have a special area set
aside for runup (link),
// All airports also already have those little tow
||Yes, those. The point of the powered rail system is
to also provide electricity to the planes system
when the engine isnt driving a generator, same as
at the gate. Think of the rail as a really long
||Good point - you could just use a really long extension
cord, which unplugs (hopefully) when the aeroplane is
||// ... use a really long extension cord, which unplugs
(hopefully) when the aeroplane is airborne //
||Easy enough - NASA put decades of study into detaching long
extension cords at takeoff. (link)
Apple MagSafe [link]
||Or how about inductive charging loops the length
of the runway and taxiway/stands
||Of course, with electric flight imminent, this might
actually be a real thing.