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The Silent 2 pure sailplane is
a technological jewel of light weight and high performance.
It has an unrivaled ability to climb in weak lift, yet maintains
excellent glide performance.
It is a delight to fly and control response is second-to-none.
Several World records have been set with the Silent 2 in the
FAI
Class-DU. A basic airframe combined with reasonable pilot
weight will generally result in a take-off weight under the
220kg (485 lbs) maximum allowable required for the FAI's DU
Class.
The Silent 2's airframe is built entirely of composite materials,
with generous use of carbon fiber in the aft portions of the
fuselage pod, the tail boom, and various critical locations
of the structure. The oven-cured wing structure includes extensive
use of carbon-fiber. The sandwich skins use vacuum-bagged
carbon fabric for the interior layer and glass fabric for
the exterior layer while the wing spar uses pultruded carbon
rods for the spar caps.
The pure sailplane's low sink rate and its stability while
thermalling allow it to fly with hang-gliders and to be unbeatable
in climb when compared with Standard class or
15m class sailplanes. It tows well behind trikes, sport-aircraft,
and regular towplanes, making it versatile for all types of
glider operations.
| Performance |
| Stall
speed (VS): |
60
km/h |
| Maneuvering
speed (VA): |
150
km/h |
| Maximum
speed (VNE):
|
220
km/h |
| Maximum
L/D: |
39
at 81 km/h |
| Minimum
sink rate: |
0.54
m/s at 77 km/h |
| Landing
distance: |
90
m |
Technical Data |
| Wing
span: |
13
m |
| Length: |
6.35
m |
| Height: |
1.25
m |
| Aspect
ratio: |
19.2 |
| Wing
area: |
8.8
m2 |
| Planform: |
Elliptical |
| Profile: |
IMD
050 (16%) |
| Empty
weight: |
125
kg |
| Maximum
payload: |
105
kg |
| Maximum
takeoff weight: |
300
kg |
| MTOW
to meet FAI rules: |
220
kg |
| Wing
load factors: |
+4.6
g / -2.65 g
(at 150 km/h - at 300 kg) |
| Wing
loading (at 300 kg): |
34
kg/m2 |
| Flaperons: |
L
+1 0 -1 S |
| Air
brakes: |
Conventional
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