Armstrong HS (High Speed) HS1850: a legacy wing, no longer in Armstrong's current range. 1,850 cm², 940 mm span, aspect ratio 4.78. The current wings that match it within ±5% area and ±8% aspect ratio, from Armstrong's own published specifications.
Projected and flat area run 3–8% apart. A marked area is one whose brand does not state which it publishes, so a match inside the area tolerance may be comparing unlike figures.
| Brand | Wing | Area cm² | Δ area | Aspect ratio | Δ AR | Span mm | Band |
|---|---|---|---|---|---|---|---|
| North | Sonar MA1850v2 MA1850v2 | 1,850 | +0.0% | 5.00 | +4.6% | 960 | C1 Low aspect |
| F-One | GRAVITY Carbon GRAVITY CARBON 1800 | 1,800 | -2.7% | 4.60 | -3.8% | 900 | C1 Low aspect |
| F-One | GRAVITY FCT GRAVITY FCT 1800 | 1,800 | -2.7% | 5.00 | +4.6% | 950 | C1 Low aspect |
| Family | HS |
|---|---|
| Size | HS1850 |
| Area, cm² | 1,850 |
| Area basis | unknown |
| Span, mm | 940 |
| Chord, mm | — |
| Aspect ratio | 4.78 |
| Band | C1 Low aspect |
| Brand files it under | All-round / freeride |
| Disciplines | prone, sup, wing |
| Construction | carbon |
| Model year | 2020-2023 |
| Source | retailer |
The brand publishes no aspect ratio; this one is derived from its published span and area (span² ÷ area).
See Armstrong on the plot →Data current to August 2026. Fast Bobby is the researcher, never the reviewer: every figure above is the manufacturer's published claim, converted to comparable units, and nothing here is a riding impression.