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Old 6th August 2008, 07:29 PM   #1 (permalink)
Andy
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Default WGC 2008 TP radius?

Anyone know what is the TP radius for assigned speed (racing) tasks at
Lusse? Is it posted on the official site somewhere?

Andy
 
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Old 7th August 2008, 08:42 AM   #2 (permalink)
Andy
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Default WGC 2008 TP radius?

On Aug 7, 1:56 am, Ian Strachan <i...@ukiws.> wrote:
> 7.5 TURN POINTS AND ASSIGNED AREAS
> 7.5.1 The Observation Zone for a GNSS Turn Point shall be a cylinder
> of radius 0.5 km, centered on the turn point.



Thanks to both of you. We use 0.25 statute mile in US and that is a
smaller radius.


Andy
 
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Old 7th August 2008, 12:22 PM   #3 (permalink)
unclhank
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Default WGC 2008 TP radius?

On Aug 7, 8:42 am, Andy <a.dur...@netzero.net> wrote:
> On Aug 7, 1:56 am, Ian Strachan <i...@ukiws.> wrote:
>
> > 7.5 TURN POINTS AND ASSIGNED AREAS
> > 7.5.1 The Observation Zone for a GNSS Turn Point shall be a cylinder
> > of radius 0.5 km, centered on the turn point.

>
> Thanks to both of you.  We use 0.25 statute mile in US and that is a
> smaller radius.
>
> Andy


US turnpoint radius for MAT and AST is now 1 mile which is intended to
reduce meaningless penalties for small misses and slightly spread the
fleet at the turn for , hopefully, enhanced safety.
Cheers
UH
 
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Old 7th August 2008, 01:16 PM   #4 (permalink)
Andy
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Default WGC 2008 TP radius?

On Aug 7, 9:22 am, unclh...@ix.netcom.com wrote:
> US turnpoint radius for MAT and AST is now 1 mile which is intended to
> reduce meaningless penalties for small misses and slightly spread the
> fleet at the turn for , hopefully, enhanced safety.
> Cheers
> UH


Oops. I forgot that change, probably because I haven't flown a
contest for over a year. Brain reverted to old memories. Thanks for
the correction.

Andy
 
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Old 8th August 2008, 06:12 AM   #5 (permalink)
Ian Strachan
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Default WGC 2008 TP radius?

On Aug 7, 1:42 pm, Andy <a.dur...@netzero.net> wrote:

>We use 0.25 statute mile in US


Question:

What is a US Statute Mile in terms of feet or metres?
The term "Mile" is ambiguous. There are lots of different "miles",
for instance there are theoretically an infinite number
of different lengths of Nautical Mile ....

But only one definition of a Metre, and therefore a Kilometre.

This is one reason why IGC has always used metric units
for International definitions (Badge distances, for instance),
and science uses the SI system which is basically metric
(I stand by to be corrected on this statement).

Ian Strachan
 
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Old 8th August 2008, 08:01 AM   #6 (permalink)
jcarlyle
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Default WGC 2008 TP radius?

Ian,

Paul didn't really answer your question. A Statute Mile in the USA is
defined as 5,280 feet. The Nautical Mile length in feet isn't as
clear, as you point out. I've seen 6,080 feet, 6,076 feet and 6000
feet.

-John

On Aug 8, 6:12 am, Ian Strachan <i...@ukiws.> wrote:
> What is a US Statute Mile in terms of feet or metres?
> The term "Mile" is ambiguous. There are lots of different "miles",
> for instance there are theoretically an infinite number
> of different lengths of Nautical Mile ....
>
> But only one definition of a Metre, and therefore a Kilometre.
>
> This is one reason why IGC has always used metric units
> for International definitions (Badge distances, for instance),
> and science uses the SI system which is basically metric
> (I stand by to be corrected on this statement).
>
> Ian Strachan


 
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Old 8th August 2008, 10:03 AM   #7 (permalink)
soarer
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Default WGC 2008 TP radius?

On Aug 7, 1:29 am, Andy <a.dur...@netzero.net> wrote:
> Anyone know what is the TP radius for assigned speed (racing) tasks at
> Lusse?  Is it posted on the official site somewhere?
>
> Andy


1/2 kilometer. Unfortunately, Karl Stiedieck had 1/2 mile mistakenly
in his SN10, was not scored for a turnpoint he made, thus scored as
landed out several days ago - ouch
DJ
 
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