Armstrong HA (High Aspect) HA880 hydrofoil front wing: 880 cm², 923 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 |
|---|---|---|---|---|---|---|---|
| F-One | EAGLE HM Carbon EAGLE 890 | 890 | +1.1% | 9.60 | -0.8% | 925 | C4 High aspect |
| Unifoil | Evolution 135 Evolution 135 | 871 | -1.0% | 9.40 | -2.9% | 903 | C3 Mid aspect |
| ENSIS | FLOW ACE Front Wing 900 | 900 | +2.3% | 9.50 | -1.9% | 925 | C3 Mid aspect |
| Axis | ART (AXIS Research Team) ART 899 | 850 | -3.4% | 9.76 | +0.8% | 899 | C4 High aspect |
| Cabrinha | Fusion H-Series MkII H850 | 850 | -3.4% | 9.53 | -1.5% | 900 | C4 High aspect |
| RRD | Flying Fish Front Wing Y30 900 | 900 | +2.3% | 9.40 | -2.9% | 910 | C3 Mid aspect |
| Code Foils | S Series Front Wing 850S | 850 | -3.4% | 9.50 | -1.9% | 900 | C3 Mid aspect |
| Omen | Operator 850 Operator 850 | 850 | -3.4% | 9.50 | -1.9% | 900 | C3 Mid aspect |
| GONG | Veloce V3 Atmo M | 890 | +1.1% | 10.10 | +4.3% | 950 | C4 High aspect |
| Axis | ART v2 ART v2 939 | 900 | +2.3% | 10.00 | +3.3% | 940 | C4 High aspect |
| Naish | Jet HA Front Wing Jet HA 840 | 840 | -4.5% | 9.80 | +1.2% | 900 | C4 High aspect |
| Omen | Agent 900 Agent 900 | 900 | +2.3% | 10.10 | +4.3% | 954 | C4 High aspect |
| North | Sonar HA850 HA850 | 850 | -3.4% | 10.00 | +3.3% | 920 | C4 High aspect |
| AFS | Pure Fuselink Foil (monobloc front wing + fuselage) Pure 900 | 900 | +2.3% | 9.20 | -5.0% | 900 | C3 Mid aspect |
| Duotone | Glide 2.0 D/LAB 900 | 900 | +2.3% | 10.20 | +5.4% | 960 | C4 High aspect |
| Sabfoil | Razor PRO 875 Razor PRO 875 | 843 | -4.2% | 9.20 | -5.0% | 880 | C3 Mid aspect |
| AFS | Silk V2 Front Wing Silk 850 | 850 | -3.4% | 9.00 | -7.0% | 875 | C3 Mid aspect |
| Family | HA |
|---|---|
| Size | HA880 |
| Area, cm² | 880 |
| Area basis | unknown |
| Span, mm | 923 |
| 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.