How to qualify for European STS operations
Understand the separate STS theory certificate, scenario-specific practical accreditation and operator requirements before choosing training.
EASA STS preparation
EASA STS study guides and exam preparation
Plan your STS preparation with free study guides, exam requirements, a study plan, booking advice and interactive lesson and question examples.
By Airspace School · Information checked
Start with your qualification route
STS combines theory competence with scenario-specific practical training and assessment. Understand STS-01 and STS-02 before choosing your route.
Try the course tools
Qualification, examination and study plan
European STS preparation for beginners
Learn the language of standard scenarios and build a clear route through theory, practical training and operational requirements.
STS mock exams: timing, marking and review
Use full STS mock papers to practise managing a timed attempt and to locate gaps across the eight theoretical subjects.
STS-01 and STS-02: the main differences
Compare the aircraft, operating environment, visual contact and practical training required by the two European standard scenarios.
Choosing an STS theory and practical training provider
Check who conducts the official STS examination and who can provide the practical training and accreditation for your intended scenario.
STS theory exam format and passing score
The European STS examination requires at least 40 questions, or at least 30 for A2 certificate holders, with a 75% passing threshold.
STS pass mark and checking your preparation
Use the STS passing threshold correctly and judge your preparation across the syllabus without relying on unverified pass-rate promises.
STS exam syllabus and topic checklist
Plan STS revision across the eight subjects in the full theory examination, with a separate check for the reduced A2-holder route.
What the STS theory examination tests
STS theory connects the scenario rules, aircraft and crew to the measures used to reduce risks on the ground and in the air.
How to study for the European STS theory exam
Build an STS study plan that connects the eight subjects to an operation and leaves room for the separate practical qualification.
How to book the European STS theory examination
Check your STS examining body, prerequisite evidence and examination route, then arrange the practical qualification separately.
Preparing to retake an STS theory examination
Use official retake instructions and targeted revision to prepare another STS attempt after an unsuccessful result.
After passing STS theory: practical training and operations
An STS theory pass is one part of the route. Check your certificate, relevant practical accreditation and the operator’s declaration before flying.
STS examination and qualification checklist
Bring together the prerequisites, theory examination, practical accreditation and operating requirements for European standard scenarios.
Choosing and using your study tools
What is included in the STS course?
See how the STS lessons, Practice, Question Bank, Mocks and AI tutor fit together, and what you can try free.
STS course price, trial and access duration
Compare monthly STS access with a single payment for 12 months, including cancellation and what the course price excludes.
How the STS visual lessons work
Use the STS course's models and explanations to understand a concept before practising questions about it.
STS Practice, Question Bank and Mocks explained
Choose between short STS practice sessions, a searchable question bank and timed mock exams. Each tool has a different purpose.
Are the STS practice questions official exam questions?
Airspace School's STS questions are original preparation material. They are not a copy of an authority's active examination bank.
Free STS study resources and examples
Find official STS reference material, a free interactive lesson and original practice examples before choosing a study course.
How to compare STS exam preparation courses
Compare STS courses by teaching, feedback, exam arrangements, practical requirements and the total cost of the route you need.
What STS practice questions ask you to do
Prepare for STS multiple-choice questions by identifying the rule, the relevant conditions and the meaning of each quantity.
STS course lessons and study tools
Explore what you study in the STS course and how the lessons connect to Practice, Question Bank, Mocks and the AI tutor.
Sources and information checks for STS guides
See which sources support the STS guides, how national differences are handled and how to report a correction.