British Trail-O Championships
29th November 2009
Daresbury Firs

Standard Course


Solutions:
Timed controls - TC1, TC2
Controls - 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14

Maps:
TC1, TC2, Course Map

Results


TC1
A

photo of timed control 1 solution map for timed controls

A-C open ground SE part

Straightforward to work out which is control at centre of circle. It was the only one in the rough open at a similar distance to the bottom of the steps. Note the presence of the orchard symbol to distract the unwary. We had thought of having it in the orchard and using the semi-open control description, but decided that would have been too tricky.

TC2
D

photo of timed control 2 A-E steps bend
Upper 3 kites are on correct bend, but since you can't amend the "bend" description to say which side, it has to be in the centre of the feature and hence it was the on the centre-line of the steps. Note that the other two were on a part of the steps which from the decision point bent the same way as the control description "bend" does.

1
E

photo of control 1 solution map for control 1

A-E between trees

A bit easier than E2 since you could easily look along the line of the trees and see that there was only one on the correct line. Making the first control on the Standard a Z would be a bit mean so it was indeed exactly at the midpoint.

2
C

photo of control 2 solution map for control 2

A-C W gully E end

If you walked along the path you could see that all 3 were on the line of the small gully and 2 were clearly in it. Since they were close to being in-line this meant that the middle one had to be on the “bridge” between the gullies and hence

3
A

photo of control 3 solution map for control 3

A-C tree E side

There was another tree out in the open which looked plausible (no branches), but the mapped one was the one with the kite was on the slope of the hill rather than being in the middle of the open.

4
D

photo of control 4 solution map for control 4

A-E pit 0.4m

The kite near the path was to give you an idea of how small the mapped pits might be you were looking at (although I hope you didn't forget about it when making your decision!). In fact this kite could be lined up with one of the path bends (once you had traced out the line of the path) to eliminate all bar one kite (which was in a line but obscured by a tree), following the line of the fence to the right showed that two kites (including the same one) was on or pretty close to that line. This gave the correct kite.

5
C

photo of control 5 from earthwall solution map for control 5

A-D boulder W side

The centre of the fence in front of the control cluster and the boulder itself lined up with the earthwall end at the limit of where you were permitted to walk (view in photo). Of course you had to first work out the centre of the fence. Relative distance into the terrain could be worked out from the visible slopes around it and relative size of the other kites. A viewing point back at the start past the thicket edge through the boulder, although a long lever arm, did rule out the 2 northern kites. Since of the other 2 one was too low and the other was the correct distance back and on the correct lines, you could rule out Z. The other clue to this one was the fact that the boulder was visible (but probably only if you knew what you were looking for).

6
B

photo of control 6 solution map for control 6

A-D spur NE part

The object was to locate the centre of the circle since 3 of the kites were on the correct spur, but only one was close enough to the centre of the circle.

7
Z

photo of control 7 solution map for control 7

A-C depression E part

These controls were in 2 ghost depressions. If you glanced left you'd have seen the real one (a LOT clearer on the day of the event than when originally planned, but we thought you deserved one easy one so left it in!)

8
B

photo of control 8 solution map for control 8

A-D SE spur

Contour interpretation: only one kite was on the correct spur rather than being at its foot, I hope not many of you forgot about the A kite when making your decision.

9
B

photo of control 9 solution map for control 9

A-D earthwall

The circle was drawn to indicate the centre of the earth-wall; the clue here was the equal small parts of the earthwall that extended beyond the circle. The basic solution here was to return to the main path and pace the length of the earth-wall. Note that that you might have found it easier to pace from the centre of the path to the boulder and then offset your answer by a metre or so. For anyone who forgot to do the offset we provided a flag at that point.

10
D

photo of control 10 closeup photo of control 10 solution map for control 10

A-E middle spur

A countour interpretation problem. The same as E17 except you were given the nice viewing angle which the Elite competitors had to discover for themselves.

11
Z

photo of control 11 solution map for control 11

A-E knoll SW part

Same cluster as E11, but the only viable kite was the one on the ghost knoll. Reading the contours of the various spurs would highlight it wasn't the mapped one.

12
B

photo of control 12 solution map for control 12

A-C SW spur NE part

Both lower kites were on the spur, only B was at the correct angle.

13
B

photo of control 13 photo of control 13 solution map for control 13

A-D small depression SW part

Control was centred on the middle of the cup depression and (unlike the Elite course) the description was for the cup depression. Like Foot-O you don’t offset the centre of the circle for part of a point feature.

14
A

photo of control 14 solution map for control 14

A-E S crag

Following normal Trail-O rules, unless described as "top" the kite should always be at the foot of a crag (ruling out the higher kite) and unless described as part will be at its midpoint. The whole crag (including the kink) was included in its length.

The only other kite near the centre of the circle could be ruled out since it was too far in front of an overhanging part of the crag - it would have to have been pushed back under the overhang until it touched to be considered on the crag. The other kites were on towards the middle of the right hand part of the crag rather than the whole crag as mapped.