How to Buy a Second-Hand Paraglider — A Safety Checklist

A second-hand paraglider can be an excellent purchase — or a serious safety risk. The difference comes down to one thing: knowing what to check before you hand over any money. This guide covers every meaningful test, the red flags that should stop a deal in its tracks, and exactly where to find quality used kit worth buying.

Why People Buy Used — and Why the Logic Often Makes Sense

A new EN-A wing from a top manufacturer costs €2,000–3,500. A quality used wing in the same class, two or three years old, with verifiable low hours and a recent inspection report, might cost €800–1,500. For a pilot who knows they'll be progressing to an EN-B within 18 months, buying new and watching the wing depreciate significantly on the first flight is a difficult case to make.

Used wings also often come with accessories — bags, repair kits, speedbars — that add practical value. The savings are real. But the savings only materialise if the wing is genuinely airworthy. A wing that fails in the air doesn't save money; it costs everything.

Step 1 — The Logbook and Documentation

Before you look at the wing at all, ask for its documentation. A wing with no logbook and no inspection history should be treated with immediate suspicion, even at a very low asking price.

What you want to see:

• Original purchase documentation — establishes manufacture date and original owner
• Flight logbook or estimated hours — most manufacturers set a lifespan of 400 hours OR 10 years, whichever comes first
• Previous inspection certificates — ideally from a certified glider inspection service (APCO, BGD, advance.ch, or a national school with certified inspectors)
• Any repair records — patches and repairs are not automatically disqualifying, but undeclared ones are a red flag

A seller who cannot produce any of this documentation is not necessarily dishonest — wings do change hands multiple times — but the lack of provenance raises your risk profile significantly and should be reflected in a meaningfully lower asking price.

Step 2 — The Porosity Test

Porosity is the single most important technical test for a used paraglider. It measures how air-permeable the wing fabric has become. New fabric is virtually impermeable — air should not pass through the sail material. As a wing ages and accumulates UV exposure and folding cycles, the polyurethane coating degrades and the fabric becomes increasingly permeable. A sufficiently porous wing can no longer maintain the internal air pressure needed for stable flight behaviour.

The professional tool is a Porosimeter, a vacuum device that pulls air through a measured sample of fabric and times how long it takes. Results are measured in seconds:

• Over 30 seconds — fabric in excellent condition, close to new
• 15–30 seconds — acceptable; wing is flying well and can be purchased with confidence if other checks pass
• 10–15 seconds — marginal; acceptable for light recreational use, but the wing should be inspected again within one season
• Under 10 seconds — fail. The wing is not airworthy for active thermal flying. Walk away.

If no professional porosimeter is available for the inspection, a basic field test can be done by placing the palm of your hand on the upper surface of the wing fabric and blowing hard against the underside. If air passes through easily and you can feel it clearly on your palm, the fabric is significantly porous. This is a rough test — it won't tell you the exact porosity reading — but it will catch wings that are definitively too far gone.

Step 3 — Visual Fabric Inspection

Lay the wing out flat on clean ground or a large table in good light. Work methodically across every cell:

• Coating cracking — on older wings, the polyurethane coating begins to crack where the fabric has been repeatedly folded. This appears as a fine network of white or silvery lines at fold areas. Some cracking is normal on older wings; severe cracking (visible from standing height, covering large sections) indicates the coating has largely failed even if porosity is borderline.
• UV damage — faded colour, chalky texture when rubbed lightly, or a papery sound when the fabric is crinkled between fingers. Wings stored outdoors or in direct sunlight degrade faster.
• Tears, holes, and patches — small repairs done with proper repair tape are not disqualifying if they're on non-structural areas. Patches on the leading edge, near the B-attachment points, or on ribs are more concerning and should be examined carefully.
• Internal ribs — reach into each cell through the intake and feel the internal ribs. They should feel taut and smooth. Sagging, torn, or missing rib sections indicate structural compromise.

Step 4 — Line Check

Lines degrade too. The main culprit is UV exposure and micro-abrasion from years of contact with soil and rocks during landings. Check:

• Sheath integrity — run your fingers down each line. The outer sheath should be smooth and unbroken. Fraying or fuzzing indicates wear; exposed core (a brighter inner strand visible through the sheath) is a serious structural failure and the wing needs re-lining before flight.
• Line length — line stretch affects the wing's trim. A set of lines significantly out of specification will change the wing's stall point and handling characteristics. This can only be accurately verified with a line-measurement rig at a certified inspection facility — another argument for requesting a recent inspection report.
• Knots at attachment points — the connections between lines and the wing's fabric attachment points should be clean and undamaged. Check the B-riser connections carefully; these are high-load points.

Step 5 — Age as an Independent Factor

Here is a fact that catches many buyers: a wing can pass a porosity test but still be structurally compromised due to age.

The issue is fabric strength, not just permeability. As sailcloth ages past 8–10 years, the material itself can lose tensile strength even if the coating appears intact. A wing that looks presentable and passes a basic porosity test may have a tear strength that has dropped to 60–70% of its original specification. Under normal flight loads this may be adequate; in a hard collapse, spiral, or SIV exercise, the reduced strength margin matters.

Red Flags That Should End the Conversation

• No documentation of any kind — no logbook, no inspection record, no original purchase proof
• Seller unable to confirm manufacture date — every wing has a serial number and manufacture date tag; if it's been removed or the seller "doesn't know," that is a problem
• Pressure to buy without inspection — "I need to sell it this weekend" creates false urgency. A legitimate seller will allow time for a proper inspection.
• Asking price conspicuously below market — if a wing is priced at 30% of comparable used wings, there is a reason
• Porosity failure — under 10 seconds, no exceptions
• Exposed line core — the wing needs re-lining before it can be flown, which costs as much as the wing may be worth
• Wing involved in a serious incident — any hard landing, ground impact at speed, or tree landing should be disclosed. Impact can stress-test seams and internal structure in ways that are not visible externally.

Where to Find Quality Second-Hand Wings

The best places to find used paraglider kit with some degree of accountability:

• Paratroc.com — the largest European paragliding classifieds marketplace, with seller ratings and detailed listings
• Flybubble (UK) — reputable dealer that sells pre-owned kit with their own inspection
• DHV Gear Exchange — the German hang-gliding and paragliding association's classifieds, generally well-moderated
• Facebook groups — Paragliding Gear Buy & Sell (UK), Paragliding Free Marketplace (international). Useful but unmoderated; apply your checklist rigorously
• Local school notice boards — often the best source, since you can meet the seller and verify local flying history

The Certification Inspection — Make It Non-Negotiable

The definitive way to verify a second-hand wing is a full certified inspection by a qualified inspector. This involves:

• Porosimeter testing across multiple cells and fabric areas
• Line length measurement on a standardised rig
• Brake setting verification
• Visual inspection of all attachment points, seams, and reinforcement tapes
• Written report with pass/fail certification

Cost: typically €80–180 depending on location and inspector. The seller should ideally provide a recent inspection certificate (within 24 months). If they don't, make the purchase conditional on the wing passing an inspection you arrange — and agree in advance what "fail" means for the deal.