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Silent 2 Targa Pure

The Silent 2 TARGA pure sailplane builds on the stellar reputation of the standard Silent 2. It is also practical for the Targa to meet the maximum allowable 220kg (485 lbs) take-off weight dictated by the FAI’s DU Class, assuming reasonable pilot weight.

The Silent 2 TARGA comes with retractable landing gear as standard equipment. The TARGA also has conventional elevator control, but the incidence of the variable-position elliptical-shaped horizontal stabilizer is ingeniously governed by the flaperon setting and the removable winglets differ in their design optimization resulting in a span of 13.3m.
The drag-reduction offered by the TARGA ’s retractable landing gear, vertical-design winglets, and variable-position horizontal stabilizer, further expand the glide performance higher airspeeds.

As for the Silent 2, the Targa’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. It tows well behind trikes, sport-aircraft, and regular towplanes, making it versatile for all types of glider operations.

The wings have an elliptical planform, vertical design winglets, and a span of 13.3 meters. The wing structure includes extensive use of carbon fiber, both in the sandwich skins and in the tapered

I-beam wing spar which uses pultruded carbon rods for the spar caps. The wing geometry is unique in that it varies non-linearly from the root to the tip, both in overall planform shape and in wing section profile. The flaperons stretch for 11.0 meters of the full wingspan and their range of motion varies from positive landing L, to +1 for thermalling, to 0, -1, and S reflex positions for cruising.

The sailplane is trimmed in pitch via an innovative variable-position horizontal stabilizer. The stabilizer position is governed by the flaperon setting: the five settings of the flap control produce corresponding changes to the stabilizer incidence, thus defining the trim airspeed in relation to the flap requirements. The conventional elevator remains in trail, minimizing trim drag.

Stall speed (Vs):

< 65 km/h (engine pylon retracted)

Maneuvering speed (VA):

150 km/h

Maximum speed (VNE):

220 km/h

Maximum L/D:

40 at 90 km/h

Minimum sink rate:

0.60 m/s at 85km/h

Landing distance:

100 m

Climb rate with engine:

2.0 m/s

Wing span:

13.3 m

Length:

6.35 m

Height:

1.25 m

Aspect ratio:

20

Wing area:

8.9 m2

Planform:

Elliptical (w/winglets)

Profile:

IMD 050 (16%)

Empty weight (without fuel):

190 kg

Maximum payload:

105 kg

Maximum takeoff weight:

315 kg

Wing load factors:

+5.3 g / -2.65 g (at 150 km/h at 300 kg)
+4.0 g / -1.5 g (at 220 km/h at 300 kg)

Wing loading at 300 kg:

34 kg/m2

Flaperons:

L +1 0 -1 S

Fuel capacity:

16 liters

Fuel consumption at 75% power:

5 liters/h