Capacity tests are built to find your ceiling, the point where you can no longer add another task without something breaking. This exercise runs three unrelated channels at the same time, on purpose. One hand keeps a drifting crosshair inside a small centre box. Your ears follow a stream of spoken numbers that climb or fall by a fixed step, and you trigger every time that step changes and then hold the new step in mind. Your eyes watch a stream of coloured shapes and, whenever the target shape appears, you key its colour and its number. It is deliberately the toughest task on the site, so the guided practice layers the channels on one at a time, exactly the way candidates describe surviving the real thing.
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This measures raw spare mental capacity: how much you can do at once before something breaks. Three unrelated channels run at the same time. One hand keeps a drifting crosshair centred, your ears track a stream of numbers and flag every time the step between them changes, and your eyes watch a stream of coloured shapes and report the target one by one. It is deliberately the hardest exercise on the site, because the real capacity tests are built to find your ceiling, not to be comfortable. What it scores is whether you can share attention across continuous control, a listening rule and a visual search without any one of them collapsing.
The crosshair is the only channel that punishes you continuously: let it run to the edge and you lose ground every frame until you recover it. The numbers and shapes are discrete, so a missed one costs a single response. When you feel yourself overloading, give a beat more to the crosshair and let a number or a shape slip; a steady share of all three always beats a perfect crosshair with the other two abandoned.
Nobody runs three tasks by rapidly switching between all of them. Use the staged practice until the number rule (trigger on every change of step) and the shape response (colour then number) are automatic, so that in the scored phase your attention is spent on the tracking and the other two fire on habit. That layering is exactly how candidates describe getting through the real capacity test.
On-site capacity tests run on calibrated joysticks, headsets and custom coloured keypads that no browser exercise can replicate, so treat this as training for the underlying skill of dividing attention, not a replica of any machine. One practical tip from candidates who have sat the real assessments: practise with a mouse or a gamepad, not a laptop trackpad, because a trackpad makes smooth continuous control far harder than the real test ever would.
Aptitude tests get you through selection. The EASA ATPL theory exams come next, and SkyStudy is built for that phase.
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