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Sierra - This
glider fills the gap between the Santana and Allegra and will pioneer a
new class of its own - to be called "Supersport Class" Top Performance
Standard Class. This glider is capable of combining the performance of
Allegra with safety and handling- both on the ground and in the air,
suitable for the intermediate pilot. Imagine Allegra with Standard
Class certification, handling, and launch characteristics of an
intermediate glider. Its shape is similar to Santana, but built with
diagonal rib technology, ensuring greater performance and speed range
than the Santana. Sierra stands out against the rest of the crowd due
to its unique blend of outstanding performance, reassurring stability
and friendly behavior. A fusion of santana planform and the advanced
diagonal rib design, with the tunable brake technology employed on
competition wings. This enables Sierra to offer a level of flight never
available before in a Standard rated package. Flying the Sierra will
become a pleasurable addiction! Flying the Sierra will become a pleasurable addiction! |
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| Sierra Technical Data | ||||
| Size | 25 | 28 | 30 | 32 |
| Cells | (29x2)+6 | (32x2)+6 | (33x2)+6 | (35x2)+6 |
| Area m2 | 25.11 | 28.07 | 29.98 | 32.02 |
| Area (projected) m2 | 21.87 | 24.43 | 26.09 | 27.83 |
| Span (incl. Stabiliser) m | 10.79 | 11.81 | 12.20 | 12.88 |
| Span (projected) m | 8.68 | 9.51 | 9.82 | 10.36 |
| Aspect Ratio | 4.64 | 4.97 | 4.96 | 5.18 |
| Aspect Ratio (projected) | 3.50 | 3.70 | 3.70 | 3.90 |
| Pilot Weight, Kg (all up) | 60 - 75 | 70 - 90 | 85 - 105 | 100 - 120 |
| Weight of Canopy Kg | 6.0 | 6.7 | 7.1 | 7.8 |
| Root Cord m | 2.9 | 2.9 | 3.0 | 3.0 |
| Tip Cord m | 0.65 | 0.65 | 0.67 | 0.67 |
| Length of Lines on B m | 6.20 | 6.80 | 7.04 | 7.43 |
| Total length of line used m | 337.5 | 378.3 | 382.7 | 413.4 |
| Sierra Performance Data | |
| V-min. | 21 km/h |
| V-trim | 36 km/h |
| V-max. | 46 km/h |
| Min Sink ( at optimum wing loading) | <1.1m/s |
| Sierra Colour Options | ||
| Colour | Bottom Surface | Top Surface |
| White |  |
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| Yellow |  |
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| Blue |  |
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| Violet |  |
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| Sierra Certification | ||
| Size/Type | AFNOR / CEN | DHV |
| 25 | performance | Class 1-2 (Trim & Accelerated) |
| 28 | Standard | Class 1-2 (Trim & Accelerated) |
| 30 | Standard | Class 1-2 (Trim & Accelerated) |
| 32 | Standard | Class 1-2 (Trim & Accelerated) |
| Sierra Construction/Materials | |||
| Lines | Material | Diameter | Strength |
| Top | Dyneema | 0.8mm | 90kg |
| Mid | Super Aramid | 1.1mm | 80kg |
| Lower | Super Aramid | 1.7mm | 150kg |
| Central Lower | Super Aramid | 2.2mm | 220kg |
| Brake Cascades | Dyneema | 1.1mm | 90kg |
| Steering Line | Polyester | 2.2mm | 90kg |
| Fabric | |||
| Sail Cloth | 46gr/m2 "Zero Porosity" Ripstop Nylon | ||
| Rib Reinforcement | 180gr/m2 Mylar (Trilam) | ||