SAFEGUARDING SERVICES FOR THE SMALLER AIRFIELD

All licensed airfields have to safeguard themselves, however small. If yours is an unlicensed airfield, HM Government advises that it should also be safeguarded, and the CAA recommends that it is safeguarded to the same parameters as those that are licensed. Whether licensed or unlicensed, a fully prepared and printed safeguarding map could well be unecessary and beyond your means.

Given the necessary airfield data, ASD can carry out the analysis (to CAP 168) and then provide all the plotting data necessary with an overlay graphic that can be printed out to scale. The graphic uses the same square colour-coding system of the full map, and, with the comprehensive instructions provided, it can be used to produce a safeguarding chart based upon an OS map. This can then be presented to the LPA.

Safeguarding software is expensive, and is normally beyond the budget of the small airfield. ASD has developed a cost-effective package that will allow the operator to check maximum build heights within the safeguarded area. It uses the airfield data from the chart overlay service, and can be provided in a combined package or separately.

ASD offers a package of two solutions for safeguarding assessment. One allows checks of the whole safeguarded area, the other for the more critical area, closer to the runways

The first uses a graphics approach, with no data to input. The cursor is placed at the structure's grid position using the coordinate display, and the corresponding height is read off. The positional accuracy may be refined using the zoom facility. The other part of the package uses Google Earth^© to display a maximum build height contour overlay enabling maximum heights AOD and AGL to be assessed.