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🔢 SHV Number Calculator

Calculate how many LED digit stickers you need for your paraglider

⚠️ Don't forget: Swiss regulations require your SHV number to be displayed on your paraglider in 40 cm height letters. Each digit is an LED-segment sticker — use this calculator to find out how many segment pieces you need to order.

Enter your SHV number

How it works

Each digit (0–9) is made up of a different number of LED segments. The table below shows the segment count for each digit:

Number	Segments
0	6
1	2
2	5
3	5
4	3
5	5
6	6
7	3
8	7
9	6

📐 Sticker Dimensions Reference

Single segment (1 sticker piece)

bevel = (L − flat) / 2 = 2.25 cm

Feature	Formula	cm
Segment length L	tip-to-tip	19
Segment flat F	non-bevel	14.5
Segment thickness T	—	4.5
Bevel run	(L−F)/2	2.25
Digit width W	L + T	23.5
Digit height H	2L + T	42.5
Char spacing G*	assumed	4.5
Pitch (W+G)	—	28

*Inter-digit gap G is set by your mounting — change as needed.

📍 Where to Place Numbers on Your Glider

Swiss regulations require the number to be visible from below during flight (on the lower surface). Pilots may place them wherever they prefer; the two most practical spots are:

Ear / Tip Cells

On the outermost cells (Randkappe) at the wing tip, centered along the chord.

Trailing Edge — Center

At the trailing edge (on the lower surface), around the center of the span.

💡 Tip: Use a carton box when you put the stickers on the glider.

⚖️ Swiss Regulation

Identification Requirements for Paragliders in Switzerland

🔢 Number to display: Your SHV membership number (Mitgliedsnummer), as assigned upon joining the Swiss Hang-gliding and Paragliding Association (SHV/FSVL). Typically 2–5 digits.
📏 Minimum character height: 40 cm (per BAZL/SHV requirements for free-flight aircraft).
🎨 Color: Must clearly contrast with the glider fabric — dark numbers on a bright glider, or bright numbers on a dark glider. Black fabric stickers on orange/yellow gliders are typical.
✈️ Placement: On the bottom surface of the wing, so the number is visible from below during flight. Outer cells (ear) or trailing edge around the center are most common.
🔒 Attachment: Glue material matters, normal "scotch tape" is not sufficient, the adhesive layer could damage the glider fabric or leave residue. Numbers must not come loose in flight.
🛡️ Purpose: Required for SHV liability insurance coverage and for identification by air traffic control and authorities. Flying without your number is prohibited.

Sources: SHV/FSVL Betriebsreglement for Hang-gliding & Paragliding · BAZL (Federal Office of Civil Aviation) guidance on free-flight aircraft · www.shv-fsvl.ch · www.bazl.admin.ch · Always verify current regulations with SHV directly.