Armstrong HA (High Aspect) HA980 hydrofoil front wing: 980 cm², 974 mm span, aspect ratio 9.68, with its closest equivalents from other brands within ±5% area and ±8% aspect ratio. Figures 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 |
|---|---|---|---|---|---|---|---|
| Code Foils | S Series Front Wing 980S | 980 | +0.0% | 9.50 | -1.9% | 965 | C3 Mid aspect |
| F-One | EAGLE HM Carbon EAGLE 990 | 990 | +1.0% | 9.50 | -1.9% | 970 | C3 Mid aspect |
| Axis | Surge Surge 950 | 949 | -3.2% | 9.52 | -1.7% | 950 | C4 High aspect |
| Unifoil | Evolution 155 Evolution 155 | 1,000 | +2.0% | 9.40 | -2.9% | 968 | C3 Mid aspect |
| KT Foiling | Nomad 980 Nomad 980 | 980 | +0.0% | 9.20 | -5.0% | 950 | C3 Mid aspect |
| Lift Foils | 150 High Aspect X Front Wing 150 | 968 | -1.2% | 10.10 | +4.3% | 991 | C4 High aspect |
| Sabfoil | Blackbird Razor 977 Blackbird Razor 977 | 953 | -2.8% | 10.20 | +5.4% | 977 | C4 High aspect |
| Naish | Excalibur HA Front Wing Excalibur 944 | 944 | -3.7% | 10.20 | +5.4% | 982 | C4 High aspect |
| Sabfoil | Razor PRO 975 Razor PRO 975 | 942 | -3.9% | 10.20 | +5.4% | 980 | C4 High aspect |
| AFS | Silk V2 Front Wing Silk 950 | 950 | -3.1% | 9.00 | -7.0% | 925 | C3 Mid aspect |
| Family | HA |
|---|---|
| Size | HA980 |
| Area, cm² | 980 |
| Area basis | unknown |
| Span, mm | 974 |
| Chord, mm | — |
| Aspect ratio | 9.68 |
| Band | C4 High aspect |
| Brand files it under | Glide / high aspect |
| Disciplines | prone, wing, downwind |
| Construction | carbon |
| Model year | 2025-2026 |
| Source | manufacturer |
The brand's published aspect ratio agrees with its own span and area (span² ÷ area) to within 5%, so the figure is confirmed.
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.