01 / Learn
Weather, concept by concept
Fifteen lessons that turn each weather topic on the Private Pilot ACS into a go/no-go call you can defend in the cockpit and in the oral. Thunderstorms, icing, fog, turbulence, fronts, winds aloft, density altitude, altimetry, and more.
Every lesson follows the same path
- What it isthe mechanism in plain English
- Why pilots carethe real operational risk
- What the products showin the METAR, TAF, and charts
- Red flagsconditions that should stop you
- Oral questionswhat an examiner will ask
- Would-you-flya real go/no-go scenario
02 / Decoder
METAR & TAF translator
Paste a raw METAR or TAF. Get a color-coded breakdown, flight category badge, and plain-English translation of every token — winds, visibility, sky coverage, weather phenomena, and TAF change groups with timing.
Live · METAR + TAF
Decode a METAR →
03 / ACS
Checkride task mapping
The weather tasks from the Private Pilot ACS, organized by topic. See exactly what the examiner can ask, the standard you're being held to, and the oral question types — without scrolling the PDF at 11 PM the night before.
Live · Private Pilot
Browse the ACS →
04 / Tools
Two flight calculators
Personal Minimums Builder — set conservative limits above the legal floor and document them for your checkride. Crosswind Calculator — enter METAR wind and a runway number to see headwind and crosswind components with a live wind triangle diagram.
Live · 2 tools
Crosswind calc → · Minimums builder →
05 / Nav Log
Cross-country nav log calculator
Plan a cross-country start to finish. Enter each waypoint, winds aloft, and altitude; the calculator solves the full heading chain (TC → WCA → TH → MH → CH), ground speed, ETE, and per-leg fuel, showing the math behind every value. Cruise TAS, GPH, and climb figures pull straight from the C172S POH Section 5 tables. Export to JSON, print a clean sheet, and your work saves automatically.
Live · Beta
Open nav log →