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Author: Tom AndersonTom Anderson Date: Sep 7, 2007 18:41
--
Understand the world we're living in
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Author: OfframpOfframp Date: Sep 7, 2007 22:40
On Sep 8, 2:41 am, Tom Anderson wrote:
Weird stuff. It looks like it's right next to the Tram stop so l'll
have a look next time l'm down there.
Binary makes me fall immediately to sleep - what are the two numbers?
I once heard that a building either at or near Croydon Airport has the
word NO written on so as to advise pilots that they are not
approaching Gatwick.
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Author: BobBob Date: Sep 7, 2007 23:15
On Sep 8, 6:40 am, Offramp gmail.com> wrote:> On Sep 8, 2:41 am, Tom Anderson wrote:
>
>> Now, somebody tell me why there's a factory in Croydon with a number
>> written in binary on the roof:
>
>
> I once heard that a building either at or near Croydon Airport has the
> word NO written on so as to advise pilots that they are not
> approaching Gatwick.
In Manchester there is a building near the station carrying a large
UMIST sign - put up no doubt to advise pilots landing at Ringway that
they were too far north :-)
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Author: MarratxiMarratxi Date: Sep 8, 2007 01:52
On 8 Sep, 06:40, Offramp gmail.com> wrote:> On Sep 8, 2:41 am, Tom Anderson wrote:
>
>> Now, somebody tell me why there's a factory in Croydon with a number
>> written in binary on the roof:
>
>
> Weird stuff. It looks like it's right next to the Tram stop so l'll
> have a look next time l'm down there.
> Binary makes me fall immediately to sleep - what are the two numbers?
> I once heard that a building either at or near Croydon Airport has the
> word NO written on so as to advise pilots that they are not
> approaching Gatwick.
There used to be a gasholder at South Harrow with NO painted on the
side to indicate that it was near Northolt airfield and not on the
approach to Heathrow.
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Author: dBdB Date: Sep 8, 2007 02:35
>> I once heard that a building either at or near Croydon Airport has the
>> word NO written on so as to advise pilots that they are not
>> approaching Gatwick.
>
> There used to be a gasholder at South Harrow with NO painted on the
> side to indicate that it was near Northolt airfield and not on the
> approach to Heathrow.
>
That was done after someone tried to land a 747 at Northolt.
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Author: John RowlandJohn Rowland Date: Sep 8, 2007 03:10
Tom Anderson wrote:
It's not a binary number, it's an arrangement of skylights. The southern
number alternates 1s and 0s, and the northern one nearly does, which
suggests that the similarity to ones and zeroes is coincidental. If you look
at the building further north, it has similar skylights but in a less
interesting pattern.
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Author: JonJon Date: Sep 8, 2007 10:50
On 8 Sep, 10:35, "dB" hotmail.com> wrote:>>> I once heard that a building either at or near Croydon Airport has the
>>> word NO written on so as to advise pilots that they are not
>>> approaching Gatwick.
>
>> There used to be a gasholder at South Harrow with NO painted on the
>> side to indicate that it was near Northolt airfield and not on the
>> approach to Heathrow.
>
> That was done after someone tried to land a 747 at Northolt.
The gasholder still standing in Southall has an arrow and 'LH' marked
on it for the same reason. ISTR being told someone did land a 707 at
Northolt by mistake in the 1970's, and it had to be stripped of all
non-essential components to make it light enough to take off again
safely.
Jon
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Author: James FarrarJames Farrar Date: Sep 8, 2007 12:54
On Sat, 08 Sep 2007 10:50:00 -0700, Jon wlc.ac.uk>
wrote:
>On 8 Sep, 10:35, "dB" hotmail.com> wrote:>>>> I once heard that a building either at or near Croydon Airport has the
>>>> word NO written on so as to advise pilots that they are not
>>>> approaching Gatwick.
>>
>>> There used to be a gasholder at South Harrow with NO painted on the
>>> side to indicate that it was near Northolt airfield and not on the
>>> approach to Heathrow.
>>
>> That was done after someone tried to land a 747 at Northolt.
>
>The gasholder still standing in Southall has an arrow and 'LH' marked
>on it for the same reason. ISTR being told someone did land a 707 at
>Northolt by mistake in the 1970's, and it had to be stripped of all
>non-essential components to make it light enough to take off again
>safely.
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Date: Sep 8, 2007 13:23
"James Farrar" gmail.com> wrote in message
news:08v5e3pprduqfamq7g1eobhpt3g6ias20a@4ax.com> On Sat, 08 Sep 2007 10:50:00 -0700, Jon wlc.ac.uk>
> wrote:
>>> On 8 Sep, 10:35, "dB" hotmail.com> wrote:>>>>> I once heard that a building either at or near Croydon Airport
>>>>> has the word NO written on so as to advise pilots that they are
>>>>> not approaching Gatwick.
>>>
>>>> There used to be a gasholder at South Harrow with NO painted on the
>>>> side to indicate that it was near Northolt airfield and not on the
>>>> approach to Heathrow.
>>>
>>> That was done after someone tried to land a 747 at Northolt.
>>
>> The gasholder still standing in Southall has an arrow and 'LH' marked
>> on it for the same reason. ISTR being told someone did land a 707 at
>> Northolt by mistake in the 1970's, and it had to be stripped of all
>> non-essential components to make it light enough to take off again ...
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Author: John RowlandJohn Rowland Date: Sep 8, 2007 16:29
James Farrar wrote:
>
> Wikipedia's page on [[RAF Northolt]] states "In days before such
> navigational aides as instrument landing system (ILS) and the global
> positioning system (GPS), the letters NO (for Northolt) and HR (for
> Heathrow) were painted on two gasometers situated on the approach to
> each airfield, one at Southall for the approach into Heathrow and one
> at South Harrow for the approach to Northolt in an effort to prevent
> recurrence of such errors." - this seems to imply that they're no
> longer there, and certainly I cannot find any evidence from a quick
> Google Maps search.
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