E-Purito from Holzmodellbau Schweiger


The Purito Electric is probably one of the best 2m build-it-yourself electric F5L RES model currently available. We now have the latest 2.0 version with many detail improvements.

The Purito is a direct descendant of the Pures and the Slight the Schweiger family concern have optimised the design as far as possible with current (2020) CNC technology. The main design change is to a lower aspect ratio wing to increase the Reynolds Number and give better overall performance and particularly nice handling. Despite the larger wing the weight has been kept the same, resulting in a lower wing loading and excellent performance in weak conditions.

The Purito flies like a homesick angel and despite its light weight the model has a surprisingly good speed range. As Greg wrote in the RCGroups thread "The big wing bestows a good launch, even when the wind is light; the airplane itself has little drag, so displays very good legs; handling is easy, allowing the pilot to concentrate on thermalling; and finally, the spoilers really make spot landings quite easy."

The amazing wing is the major improvement of this design. The main spar is a substantial carbon tube which gives the structure excellent rigidity. A multitude of ribs are threaded over this tube to give the airfoil shape. This is even better maintained over the critical front portion by utilising two sub-ribs between each full rib, almost eliminating covering sag, and reducing drag appreciably. Becuse the tubular spar is inset below the covering surface there isn't a discontinuity at the spar line which is great feature - this usually trips the boundary layer and causes extra drag.

Description from Hyperflight



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Some content in menu 2.

We cannot guarantee that the shops listed below do sell the E-Purito in particular but at least we know they do distribute Holzmodellbau Schweiger.

Wingspan: 2000mm (78.7 in)
Length: 1190mm (46.9 in)

Weight: 478 g (16.9 oz)
Wingspan 2.0 m 78 in
Wing area 39.7 dm2 615 sq in
Length 119 cm 46.9 in
Flying weight from 478 g 16.9 oz
Wing loading 12.0 g/dm2 3.9 oz/sq ft
Aspect ratio 10.0
Wing airfoil AG35-38 modified
Dihedral (EDA) 12.0º
Spinner Diameter 30 mm
Centre of Gravity 75-80 mm from wing leading edge
Controls Rudder, elevator, spoilers, throttle
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