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 / ACS
Checkride task mapping
Every weather-related ACS task element for Private, Instrument, and Commercial checkrides, 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 · PA · IR · CA
Browse the ACS →
03 / 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 →
04 / 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 →
05 / Crosswind
Crosswind calculator
Enter the METAR wind and a runway number to see the headwind and crosswind components, with a live wind-triangle diagram.
Live · Calculator
Crosswind calc →
06 / Minimums
Personal minimums builder
Set conservative personal limits above the legal floor and document them for your checkride, so the go/no-go decision is made on the ground.
Live · Builder
Minimums builder →