Skip to content
elvn .studio
← Back to products

HOLD

Open beta

Instrument-navigation training for pilots - right in the browser.

aviation IFR training simulation engine EdTech web app
Languages: FR · EN Visit hold.aero →

From the sim to the cockpit.

The starting point

Instrument-navigation training (IFR) is one of the most demanding stages of a pilot’s education. Mastering holding-pattern entries, VOR radial tracking or radio navigation takes hundreds of repetitions - but those repetitions are expensive: they require an aircraft, a certified simulator or dedicated hardware, and flight time billed by the minute. The result: pilots often reach the cockpit without having automated their procedures.

The challenge: reproduce the procedural rigor of IFR in a tool accessible from a plain browser, with no hardware at all.

Our answer

We designed HOLD as a complete learning loop - briefing, flight, debrief, progression - built around an in-house simulation engine. The pilot plans the entry, flies the procedure on a real-time map view with simulated wind, then gets a detailed debrief: their track replayed, compared to the ideal one, and scored across more than a dozen performance dimensions. They can replay, compare attempts and target their weak spots.

Around this loop, a real progression: three structured programs from fundamentals to advanced level, weekly challenges with a global leaderboard and badges, and a sandbox mode to train in any wind condition, anytime.

The technical craft

HOLD isn’t a mockup: it’s a product in production, built for precision and data reliability.

  • A proprietary simulation engine - flight physics and real-time procedure validation, isolated in pure, testable logic.
  • Real aeronautical data - an ingestion pipeline for official FAA data (CIFP / ARINC 424) feeding 500+ U.S. airports.
  • Multi-dimensional scoring and replay that turn every flight into actionable data.

The outcome

HOLD is now in open beta: a working, online platform that lets student pilots, IR candidates and instructors turn ground time into lasting procedural reflexes. A project that illustrates what the studio loves to do: take a technical, demanding domain, extract a clear product loop, and deliver it all the way through.

Instrument-navigation training for pilots - right in the browser.

Visit hold.aero →

Let's build what matters.

Tell us about your project - we read every message.