ExtrmSport
Nothing about this sport should be hard to find out. Numbers you can check, listings operators can correct, and a jumping record that stays yours.
Find a dropzone or open a calculator
Air is live today. Land, Water and Ice are backlog - listed here so the scope is visible, not because they ship.
Backlog
Air is the live element. Everything below works now, in the browser, and the four calculators need no account.
More than 1,000 dropzones across more than 80 countries, with aircraft, canopy and rig details, opening hours, pricing and contacts where an operator has supplied them. Public, no login. Records are flagged where the data is unverified, and anyone can submit a correction.
Wing loading in lb/ft² against the USPA SIM 5-3 and 6-10 bands. Reserve repack due dates on the 180-day cycle in 14 CFR 105.43. License currency at 30, 60, 90 or 180 days by license class. Resale value for a used container, main or reserve. Each one cites the section it works from.
Repack and currency dates expire quietly. Set a notification and an email arrives 30 days before either does. Both notifications are on the Pro plan, $2.99 per month or $19.99 per year.
A public calendar of trips and boogies in UTC, open to read and open to post to. Plus a Telegram group for trip planning and the questions a calculator cannot answer.
The tools compute; you decide. Nothing here is instruction, certification or a substitute for your rigger, your instructor or your equipment manufacturer's manual.
Most people who jump are not engineers, and most engineers do not jump. I do both, which is the only reason this got built.
It started with a calendar. I wanted to share a jump weekend with friends without a group chat, and then with repack dates I could not keep track of, and then with a dropzone booking form that did not work. Every one of those was information that already existed and was not reachable.
ExtrmSport is a MaverickX product. One person builds it and one person answers the email.
Be specific about the dropzone, the calculator or the account involved and the reply will be faster.