|Geomagetic Suvey Aircraft|
But what kind of surveying is it? Those wires strung between the prongs and the wings make me think that they are either looking for radio waves, measuring the Earth's magnetic field, or possibly measuring gravity. A little poking around turns up a picture of a similar plane on an Australian page about geomagnetic surveying. So I'm going to jump to the conclusion that this aircraft is equipped with equipment for measuring the Earth's magentic field.
|Capricorn 2013 AEM TEMPEST® survey flight lines|
|Camel train with equipment for Edward Kidson’s magnetic survey work in Western Australia, mid-1914. Image: Carnegie Institution of Washington, Department of Terrestrial Magnetism|
* No relation to Dale.