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05 - Gates for microlights

Proposal from

Petr JONAS (CZE)

Proposal title

05 - Gates for microlights

Existing text

1.13.4 GATES, TURNPOINTS AND MARKERS
Gates are normally a straight line 250m wide perpendicular to the briefed track.
Gates may be:
-­ Known gates. Their position and height to be crossed will be briefed.
-­ Hidden gates. The height to be kept along the sections of the course where they are situated will be briefed.
Proof of passing a gate and it's timing will be by Marshals report or GNSS flight recorder evidence, as briefed.
Control points may be: A geographical point, a ground marker, a landing marker or a kicking stick.
Control points may be:
-­ Known control (turn) points. Their position and description will be briefed.
-­ Hidden control points. The track along which they will be found and their description will be briefed.
Proof of reaching a control point may be:
-­ by the competitor recording the symbol and position on the declaration sheet.
-­ by a Marshal's report.
-­ by flight recorder evidence.
The precise requirements will be described in the Task Description.

New text

Gates are normally:

For Paramotor aircraft classes PF and PL:

a straight line 250m wide perpendicular to the briefed track.

 

For Microlight aircraft classes AL, WL WF and GL:

 a straight line wide perpendicular to the briefed track, extending 250m to either side of the track.

Gates may be:

- Known gates. Their position and height to be crossed will be briefed.

- Hidden gates. The height to be kept along the sections of the course where they are situated will be briefed.

Proof of passing a gate and it's timing will be by Marshals report or GNSS flight recorder evidence, as briefed.

Control points may be: A geographical point, a ground marker, a landing marker or a kicking stick.

Control points may be:

- Known control (turn) points. Their position and description will be briefed.

- Hidden control points. The track along which they will be found and their description will be briefed.

For Microlight classes, gates and control points must be placed on a natural line depicted in the map (such as a road, river, high voltage transmission lines etc.), where the line is crossing the track, or at the level of an object that is depicted in the map (such as a church), when the object is not more than 300meters off the track (in that case the gate is placed on the track at the closest point to the given object) .

Known control (turn) points must be placed on an object that is depicted in the map (such as a crossroad, church etc.).

 

Proof of reaching a control point may be:

- by the competitor recording the symbol and position on the declaration sheet.

- by a Marshal's report.

- by flight recorder evidence.

The precise requirements will be described in the Task Description.

Reason

This change was approved in the exact same form by the Microlight subcomittee last year. The Paramotor subcomittee did not approve this change, because of a different spirit of their navigation tasks.

I have modified this proposal to that it only affects Microlights now.

Gates in this form (actually even 300m to each side of the track, but most importantly on a natural line or an object!) were used at the European Microlight Championship in Hungary and the feedback was VERY positive!

For completeness, the reasoning from last year:

According to 5.7.3, the width of a gate has to be at least 2mm in the official map. Since the normal scales used to competitions of microlights are 1:200 000 or 1:250 000, the gate cannot be 250m, as that would only be around 1mm. By extending the gate 250m to each side, therefore making it 500m, it is 2mm wide on the 1:250 000 map.

The accuracy and time measurements should be done on a landmark, so that the pilot can find and can adjust his position and timing to it.


Added by Petr JONAS Last edited by Petr JONAS on 11 Oct, 2017 09:35. Quick links: http://wiki.fai.org/x/BwAOAg or 05 - Gates for microlights
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