Re: Maps! (let's have a seperate thread, instead of using roll call)

GAGS wrote:
"Stephen Rainsbury" <stephen@xxxxxxxxxxxxxxxxxxxxxx -> wrote in message
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"GAGS" <absolutecrapgags.nw@xxxxxxxxxxxxxxx> wrote in message
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Now measure teh angle on teh map and the difference is the error..

Well that's one way you can sort of do it. It's not the most accurate or
best way though! Doing it this way the best you can probably hope for using
a bog standard silva-type compass is to get the bearing within an accuracy
of 2-4 deg. If the intrinsic error in the compass is a misalignment of the
same order then you won't be able to say which is which.

Its not an original idea, but it is used by the military to get some
idea when the local maps are sh... sorry not very good, and they are
"bimbling" around using sattelite pictures. I spent the weekend at the
County Pioneeing camp which is mostly manned by ex-royal engineers.
They kept us entertained until 2AM on saturday with stories not fit for
mixed company and that seemed to include a higher than normal
percentage of bottoms, dangly bits and foreign officials, often all at
once. The certainly prove the old saying "swearing like a trooper"
(But no not in front of teh kids!!!)

But of course you already knew that seeing as I sent you a compass
with
those error values (anyway I think I did)!

You certainly did and we still have it in the compass box, its somthing
I would like to do with my older explorers as the 17/18 years olds seem
to be getting really interested in that sort of detail.

Linear features are better simply because there is more of them and they
point in two directions! An attack point is just a point feature. A linear
feature has size and direction to help you; a linear feature is a 'signpost
in the landscape'.

Is that it? I thought it was something to do with satellite images or
buildings not being very accuratley marked!

Not in Explorers any more :-)

It's okay for you still! The advice was aimed at yp under 18 drinking
alcohol. I don't think you're under 18 (?)

I havn't been uder and 18 year old since....... blast its the
influence of those army stories again!!!

SBR

.

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