Recently I took part in a couple of days' training in how to do airstrip surveys. This involves taking measurements of the length, width, and slope of the airstrip and obstacles around it, using a GPS and laser range finder/inclinometer (such as is used by golfers), and inspecting the airstrip condition. This information is combined with DCP (dynamic cone penetrometer) data, which measures the strength of the subsurface - there have been a few accidents in MAF's history where although the surface was dry and firm, underneath was waterlogged and the weight of the aircraft caused it to break through. MAF now has a policy of re-assessing every airstrip every 2 years, so that we are using reliable data - essential for safe operations.
The first day was in the classroom learning about the requirements, the process, and how to use the equipment.
The second day we went to two airstrips in the Goroka area that were nearing their 2-yearly due date for being surveyed. Here are some photos...
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Simogu airstrip
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Roping in some local volunteers to help
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| Measuring longitidunal slope, Guwasa |
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Measuring width and transverse slope
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Measuring camber
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Job done!
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