Ball & Rudder
Practice Simulator
Practice the psychomotor coordination test used in airline pilot selection (Air India, IndiGo, and more). Keep the ball centred on the × target for 3 minutes against random wind.
180 seconds
Easy → Expert
Keep ball on it
ADAPT standard
Background
What is the Ball & Rudder / ADAPT Test?
The Ball & Rudder test is a sub-task of the ADAPT (Aptitude for Diverse Pilot Training) psychomotor assessment battery, developed by Symbiotics Ltd. It is one of the key screening instruments used by Indian and international airlines, including Air India, IndiGo, SpiceJet, and Akasa Air, during cadet and direct-entry pilot selection.
The test measures hand-eye coordination and psychomotor aptitude: your ability to make smooth, proportional corrections to maintain a moving object at a fixed target, under conditions of continuous, unpredictable disturbance. This directly simulates the skill required for coordinated flight.
In the test, a ball rests on a circular tray. Random "wind" of varying direction and strength continuously pushes the ball away from the centre. The candidate controls a flight stick (or rudder pedals) to tilt the tray and keep the ball over the centre cross (×) for the full 3-minute duration.
Crucially, the scoring is not a simple average. Symbiotics calculates a cumulative performance score over 10-second intervals, generating both an Overall Coordination score and a Learning Score (how well you adapt to the controls). These are then converted to a STEN (Standard Ten) score from 1 to 10 based on a normative group.
Mechanics
How it works
Maintain Control
Keep the ball centred on the cross. The simulator records your cumulative performance in 10-second intervals to calculate your raw score.
Wind pushes the ball
Random wind of varying direction and strength (modelled on Perlin noise) constantly disturbs the ball, just like the real ADAPT test.
Adapt & Learn
Airlines measure your Learning Score (how well you improve your control strategy over time), not just your final absolute coordination.
Input
Supported Controls
Works on desktop, laptop, and mobile.
Deep Dive
Understanding Your Symbiotics Report
Airlines look beyond your final average. Here's exactly what is measured.
What is Actually Measured?
The test evaluates two separate metrics to form your profile:
- Overall Coordination: How accurately you control the ball throughout the test.
- Learning & Adaptation: How much you improve your control strategy as the test progresses.
A candidate with poor initial coordination who adapts quickly can score higher on the Learning metric than someone who is consistently average.
Cumulative 10s Intervals
Your raw score (maximum 300) is calculated cumulatively over 10-second intervals. Distance from the centre matters; keeping the ball exactly at the centre yields maximum points per unit time.
Symbiotics looks for a steep cumulative curve. A steep curve with a high final score represents strong, consistent control.
STEN Scoring Explained
Your raw performance is converted into a STEN (Standard Ten) score from 1 to 10 by comparing you against a normative group.
A STEN 8 does not mean you scored 80%. It indicates that your performance is around the 90th percentile of the comparison population.
The Official Report
When airlines receive your ADAPT results, they see a detailed profile including:
- Overall Raw Score & Overall STEN
- Learning Raw Score & Learning STEN
- A cumulative performance graph plotted over time
- Colour bands indicating your competence level
Scoring
Exceptional - Highly Competitive
Good - Airline Standard
Moderate - Needs Improvement
Below Standard
Scores are based on the STEN (Standard Ten) system, comparing your cumulative 10-second interval accuracy and learning rate against a normative group.
Technique
5 Tips to Score Higher
Based on what airline-selected pilots report working best.
Make small, early corrections
Don't wait until the ball reaches the rim. Tiny inputs early are far more effective than large corrections late. Airline evaluators call this "anticipatory control."
Relax your grip on the keys
Tapping arrow keys rapidly creates overcontrol. Instead, hold the key gently and release as the ball drifts back. Think of it as holding a rudder pedal, not hitting a button.
Watch the ball, not the tray edge
Keep your focus on the ball relative to the × mark, not on the rim. Peripheral vision handles the boundary; your fovea should track only the target zone.
Start on Standard, not Easy
Airlines test at a fixed difficulty level. Practicing only on Easy builds false confidence. Begin on Standard from day one, then try Hard to build buffer capacity.
Practice in short bursts
The real ADAPT test is 180 seconds. Take multiple 3-minute sessions rather than one long practice. Motor memory consolidates better with repeated short exposures.
FAQ
Frequently Asked Questions
What is the ADAPT test?
ADAPT (Aptitude for Diverse Pilot Training) is a psychomotor aptitude battery developed by Symbiotics Ltd, used by airlines worldwide, including Air India, IndiGo, and Akasa Air, to screen pilot candidates during selection. It includes several sub-tests; the Ball & Rudder (or "Tracking") task is one of the most heavily weighted components.
Which Indian airlines use the ADAPT test?
Air India, IndiGo, and several regional carriers use ADAPT or similar psychomotor assessment batteries during their cadet and direct-entry pilot selection processes. The specific test version and passing benchmark may vary by airline and year.
What score do I need to pass?
Airlines do not publish exact cutoffs, but community data suggests candidates who achieve a STEN of 7 or 8 consistently clear the psychomotor stage. Note that STEN 8 does not mean 80%; it means you performed at the 90th percentile of the comparison group.
Can I practice on a phone or tablet?
Yes. Our simulator supports touch drag input on mobile and tablet devices. However, the real ADAPT test is administered on a PC with a flight stick and rudder pedals. For realistic preparation, we recommend practicing on a desktop or laptop keyboard, ideally with a joystick if available.
How is this different from the actual ADAPT test?
Our simulator reproduces the core mechanics (random wind, a circular tray, a target centre, and a 3-minute window), but the actual ADAPT software is administered under controlled lab conditions with calibrated hardware. This tool is for practice and preparation only. PilotPrep has no affiliation with Symbiotics.
Is this simulator free?
Yes. The Ball & Rudder practice simulator is completely free to use, with no trial limits. Sign in to track your score history and improvement over time.
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