COMPASS pilot aptitude test: what it is and how to practise
COMPASS, from European Pilot Selection and Training (EPST).
COMPASS, the Computerised Pilot Aptitude Screening System, is a computer-based battery used by a number of flight schools and airline cadet programmes to screen would-be pilots. It samples raw coordination, cognitive and multitasking ability, so prior flying experience is not required to do well. Here is what it covers, how a session runs, and which free SkyStudy exercises train the same skills.
- Psychomotor coordination
- Pursuit tracking
- Multitasking
- Short-term memory
- Instrument orientation
- Mental maths
What the COMPASS test measures
COMPASS is produced by European Pilot Selection and Training (EPST), a Netherlands company that has run it since the 1990s. It is built to sample the raw cognitive and psychomotor traits a trainee pilot needs, and EPST states that flying experience is not required to perform well.
The standard battery is built around six core tests: a compensatory Control task and a Slalom tracking task for hand, eye and foot coordination; a Mathematics test of applied mental arithmetic under time pressure; a Memory test of short-term recall; a Task Manager test that has you scan the screen and manage two tasks at once; and an Orientation test that reads flight instruments such as a direction indicator, artificial horizon and relative-bearing indicator. Depending on the airline or school, EPST can add optional modules: a technical Tech-Test, an Aviation-English screen and a Verbal Reasoning test. Some EPST materials describe a six-test core and others a fuller set of nine, because the optional modules are switched on per client.
How the COMPASS assessment is structured
COMPASS runs on a PC with visual and audio elements, and the coordination tests use a joystick and rudder pedals rather than a keyboard, so the psychomotor modules are genuinely control-based. Each subtest opens with a short practice run before it counts, and the whole session is scored automatically and reported as soon as you finish.
Preparation guides commonly put the length at around ninety minutes when the optional modules are included, though EPST's own pages do not publish a fixed time, and describe COMPASS as a fixed rather than adaptive set of tasks. EPST reports the battery is available in several languages, including English, Mandarin and Cantonese, Spanish, Turkish, Arabic and Russian, and publishes reliability figures for it (a validity coefficient it states as 0.761 and a test-retest reliability of 0.79). Airlines and schools set their own threshold against the combined result, so there is no single published pass mark.
Which airlines and schools use COMPASS
COMPASS is used by a mix of flight schools and cadet programmes rather than one flag carrier. EPST runs it through partner academies including OSM Aviation Academy, and independent schools such as 43 Air School administer it as their screening step. Some airlines are reported by preparation sites to use it too, but airline recruitment pages rarely name the branded system they use.
The practical takeaway: you are most likely to meet COMPASS through a flight-training organisation or cadet scheme. If your assessment invitation does not say which system you will sit, ask the school or airline directly rather than assume.
SkyStudy is independent and not affiliated with any airline, school or test publisher named in this section. Operator usage changes between intakes and is rarely confirmed publicly, so always verify the current selection process in the operator's own published materials.
How to prepare for COMPASS, honestly
Because EPST designs COMPASS to measure innate aptitude rather than aviation knowledge, no practice tool can raise the underlying trait it samples, and you should be wary of any product that promises to. What practice genuinely does is remove the two things that cost candidates marks: unfamiliarity with the task formats, and nerves.
Getting comfortable with compensatory and pursuit tracking, with scanning and managing two tasks at once, and with fast mental arithmetic and instrument reading means you spend the real test doing the task instead of working out what the task is. If your process includes the optional Tech-Test or Aviation-English modules, brushing up basic physics and aviation phraseology helps too. Rest, arrive calm, and read each practice run carefully. The free SkyStudy exercises below train each of these skill areas.
Practise the same skills, free on SkyStudy
Each exercise below is an original SkyStudy drill that trains a skill COMPASS is documented to sample. No account needed, and your best scores are saved privately in your browser.
Sources
Facts on this page are drawn from the following, checked July 2026. Details change, so confirm current specifics with the publisher or your assessment provider.
Frequently asked questions
Frequently asked questions
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