What Is an EN/LTF Test Report and Why It Exists
Every certified paraglider sold in Europe must pass a standardised battery of flight tests before it can legally carry a pilot. Two parallel standards govern this process: EN 926-2, the European norm, and LTF 91/09 (Lufttüchtigkeitsforderungen), the German equivalent. In practice, most manufacturers test to both simultaneously, so you will often see both logos on the same certificate. The report that comes out of those tests is not a marketing document — it is a legal record linking a specific production batch of a specific wing size to a defined set of results. When you buy second-hand, that document is your primary safety evidence. Without it, you are flying on trust alone.
Altura's policy reflects this directly: the platform refuses to list second-hand equipment that lacks a valid test report. No report means no sale — full stop.
Breaking Down the Key Parameters Line by Line
A standard EN 926-2 report works through a defined sequence of manoeuvres. Each sub-test receives a letter grade running from A (best) through F (failure). Here are the parameters you will encounter most often:
- Inflation and take-off behaviour — assesses how predictably the wing rises overhead and whether it overshoots or surges.
- Big ears in accelerated flight — tests entry procedure, stability while held, and what happens on release. Spontaneous recovery in under three seconds earns an A; if the pilot must intervene and recovery still takes longer than five seconds, the grade drops to D. A deep stall on exit is an F. Dive-forward angle on exit is graded separately: zero to thirty degrees is an A; sixty to ninety degrees is an F.
- Steep spiral exit — measures how cleanly the wing recovers from a loaded turn without pilot input.
- Stall recovery — checks behaviour at and beyond the stall point, including whether a deep stall or cravat can develop.
- Porosity — fabric is tested at multiple points across both top and bottom surfaces. A near-new wing holds air long enough to score high on the porosity timer; a degraded wing lets air through faster. The report will list values per cell zone.
- Line strength — a pass/fail check measured against manufacturer specifications. Every line must test above those specs to pass.
- Line-length symmetry — left-to-right difference measured in millimetres. A large asymmetry can indicate stretched or replaced lines that were not matched correctly.
Read every sub-test grade individually. The summary EN class — EN-A for maximum passive safety, EN-B for intermediate, EN-C for advanced pilots with SIV training, EN-D for experts — tells you the overall category, but it does not tell you which sub-tests were borderline. A wing can hold an EN-B class while scoring a D on spiral exit recovery. That detail matters enormously to a buyer.
If you are considering your first second-hand wing and are not yet an experienced pilot, stay firmly within EN-A or EN-B and seek guidance from a qualified instructor before buying. This guide is not intended for anyone evaluating EN-C or EN-D wings as a first purchase.
Numbers That Should Make You Walk Away
One rule overrides everything else: a single F result in any sub-test is a disqualifying failure, regardless of how well the wing performed everywhere else. There is no averaging, no partial credit. If you see an F anywhere on the report, the wing is not certified for that class — walk away.
Beyond the outright F, watch for these warning signs:
- Multiple D grades, especially on big-ears recovery or steep spiral exit — these indicate a wing that demands active, experienced piloting in situations where many pilots are already stressed.
- Low porosity timer values across several cell zones — fabric that lets air through quickly is fatigued fabric. Even if the wing passed its last test, the numbers tell you how much life is left.
- A line-strength result that only just clears the manufacturer specification — lines age and UV-degrade; a marginal pass today may be a fail by the time you fly in strong conditions.
- Any note of a repair, patch, or line replacement that post-dates the test — modifications after certification are not covered by the original report.
Why Report Age Matters as Much as the Results
A wing that passed every sub-test eight years ago may have fabric and lines that would fail today. Passing grades do not have an indefinite shelf life. Industry-standard practice is to have a paraglider inspected every two years or after a manufacturer-defined number of flying hours, whichever comes first. Always check the report date against that interval — and ask the seller for a logbook or flight-hours estimate to cross-reference.
The same principle applies to reserve parachutes. The Donut 90 SL, for example, requires a valid test report reissued every six years or after 200 pack cycles, whichever comes first. If the reserve in a harness package you are considering is overdue on either count, factor in the cost of a repack and retest before agreeing on a price.
How to Match the Report to the Wing in Front of You
This step is where many buyers make a costly mistake. The certification number printed on a test report links a specific serial-number batch of a wing to those results. A report for size M does not legally cover size S or XL of the same model. A report for an earlier production run does not cover a later batch. When you inspect the wing, find the serial number on the certification label (usually sewn into the centre cell or the riser attachment point) and confirm it falls within the batch range stated on the report. If the seller cannot produce a report that matches that exact serial number, treat the wing as uncertified.
This is also why a listing for a popular beginner wing — such as the Eazy 4 — should always include a report that names the correct size and serial batch, not a generic brand document. Check the product page for full certified specifications before comparing any report against them.
Using a Valuation Tool to Sanity-Check the Asking Price
Once you have confirmed the report is valid, current, and genuinely matches the wing, you still need to know whether the asking price is fair. Paragliders depreciate roughly 20–30% in the first year and approximately 10–12% per year after that. A wing with a valid, in-date test report commands a meaningfully higher resale value than one without — because the report removes uncertainty for the buyer. Conversely, a wing priced as if it were in perfect condition but carrying borderline porosity scores or a near-expiry report date is overpriced.
Before you make an offer, use the Altura used-gear valuation tool to get a transparent market estimate based on model, age, and condition — so you negotiate from facts, not guesswork.