Beer cans grew out of the use of the early GPS systems that were unable to
accept the programming of a sector based 'observation zone'. The really
silly thing is that now the technology has caught up we have just embedded
the beercan more firmly in the rules.

What you need, having declared a point turnpoint, is a piece of software
that calculates the centre point of a beercan that has its centre 1km beyond
the actual point on the external bisector of the inbound and outbound
tracks!

This means that you declare the 'false' beercans and just fly into their
observation beercans and head for home. Either that or just declare 1km
longer for each tp used.

Of course you now have to write on the declaration the type of OO sectors
used, the normal task distance and the 'corrected' task distance.

Sound to me like its all getting more complicated rather than less so.

Ian

"Denis" wrote in message
...
Mark James Boyd wrote:

The beer can has a 500 m radius like in Annex A, and 1 km is subtracted
from the distance at each turnpoint when beer can is used.

Hmmmm...I wonder if I declare a course which is 300.1 KM, and
then go fly it by turning each point just outside the point by
a few hundred meters, if this means I will be 3 KM short...

if you declare and fly the OZ (outside quadrant), using the WGS85
distance, it should be OK !

Still dunno why a beer can was ever introduced for anything...
See old threads for arguments on this...

I still think keeping quadrants (or even buoys you should fly around)
would have been better, but now that beer cans are in most comps,
loggers, etc., it's better use them for badges also

--
Denis

R. Parce que ça rompt le cours normal de la conversation !!!
Q. Pourquoi ne faut-il pas répondre au-dessus de la question ?