Officer Aptitude Rating (OAR) and Aviation Selection Test Battery, Series E (ASTB-E) — Naval Aerospace Medical Institute
The OAR and ASTB-E are the Navy's officer aptitude tests, run by the Naval Aerospace Medical Institute. The OAR is reported on a 20-80 scale and the full ASTB-E adds aviation scores. There is no universal pass mark, because each program sets its own minimums, and you may test three times at least 30 days apart. SummitCert's portal is a study aid with explained practice questions in math, reading, mechanics and aviation, flashcards and an 80-question practice set.
One-time purchase · lifetime access · study on any device
Everything included — in full detail
This is exactly what you unlock. No vague promises — real numbers, straight from the portal.
Your full practice pool — 350 questions total, written to mirror the real exam blueprint, with full answer explanations for every question.
Including MST Arithmetic, Fractions, Roots and Exponents, MST Algebra and Equation Solving, MST Geometry, Angles, Area and Perimeter, and more.
A complete, realistic exam-day simulation with the same question count and time limit as the real thing.
Covering every key term, concept, and framework you're expected to know.
Hand-picked walkthroughs and explainers organized by topic.
Visual breakdowns of the frameworks and models the exam tests you on.
The exact formulas and calculations you need, ready to review before test day.
A searchable glossary so unfamiliar terminology never slows you down.
See your accuracy by domain, spot weak areas early, and follow a built-in study schedule.
Tailored to this exam: it knows your progress and weak areas, remembers your earlier chats, and picks up where you left off on your other devices.
Study anywhere — your progress syncs on the device you are using and picks up where you left off.
No subscriptions, no renewals — buy once and keep studying until you pass.
See the OAR and ASTB-E portal
Real screenshots — this is exactly what you'll be studying in. Click to zoom in.
How would you like to start?
Try before you buy, or jump straight into full access.
Topics you'll drill
8 core topics pulled straight from the real question bank.
- MST Arithmetic, Fractions, Roots and Exponents
- MST Algebra and Equation Solving
- MST Geometry, Angles, Area and Perimeter
- MST Rates, Probability and Data Word Problems
- RCT Inference from Operational and Procedural Passages
- RCT Inference from Science, Technology and General Passages
- MCT Fluids, Gases and Pressure
- MCT Simple Machines, Pulleys, Levers and Gears
OAR and ASTB-E exam requirements & cost
Straight from the certifying body — separate from what we charge for the study portal.
The OAR is made up of the math skills, reading comprehension and mechanical comprehension subtests and is reported on a scale of 20 to 80; the full ASTB-E also yields aviation scores on a 1-9 stanine scale (NAMI ASTB overview). There is no universal passing score: minimum scores differ by program and service. You may take the test three times, at least 30 days apart. This portal is a study aid: its 80-question practice set covers math, reading, mechanical comprehension and aviation and nautical information, and it does not reproduce the adaptive format or predict a score. There is no single passing score: each program sets its own minimum OAR and ASTB-E scores. Use the percentage in this portal as a self-check, not a score prediction. The test is arranged through your recruiter or program officer; confirm any costs and the testing location with them. You test through a recruiter or program officer for the Navy, Marine Corps or Coast Guard program you are applying to.
Real pass rate, retake policy, scoring, and a study timeline for OAR and ASTB-E — free, no purchase required.
Common questions
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