Libelle H-201 D-Box 1:4 white red

item number: LIBELLE-1

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Libelle H-201 D-Box 1:4 Valenta

Color white-red

Orginal:

The H-201 Standard Libelle was a follow-on Standard Class sailplane to the successful H-301 Libelle Open Class glider. It was similar to the H-301, with modifications to meet the Standard Class requirements. The prototype made its first flight in October 1967, with a total of 601 being built. The type soon made its mark in contest flying; one flown by Per-Axel Persson of Sweden, winner of the 1948 World Championships, came second in the Standard Class at the 1968 World Championships at Leszno in Poland.

The Libelle and Standard Libelle were very popular and influential designs. Their very light wings and extremely easy rigging set a new benchmark. Their handling is generally easy except that they are quite sensitive to sideslipping and have relatively ineffective air brakes that make short landings tricky for inexperienced pilots.

The Standard Libelle (H-201) is of similar glassfibre construction to the H-301 Libelle. The changes required consisted of removing the flaps and tail braking parachute, fitting a fixed, instead of retractable, monowheel and raising the height of the canopy. A new Wortmann wing section was featured and terminal velocity dive brakes were fitted.

With a change in the Standard Class rules, the H-201B of 1969 introduced a retractable gear and a water ballast system as an option, with one 25-litre bag per wing located before the spar, with valve and dumping orifice on the fuselage underside. Other improvements in the B variant were larger upper surface dive brakes, a larger stabilizer for better low-speed handling, PVC foam sandwich core for the wing (instead of balsa) to increase durability and profile accuracy, increased gross weight and higher operating speeds.

The canopy is unique in that it has a catch that enables the front to be raised by 25mm (about 1 inch) in flight to provide a blast of ventilating air instead of the more conventional small sliding panel used for this purpose.

The connections for airbrakes and elevator are automatic. The aileron connections are manually connected.

Technical specifications:
- Wingspan: 3850 mm
- Length: 1560 mm
- Profile: HQW 2.5 / 12%
- Wing loading: 67,8dm²
- Flight weight: 4200-4800g
- Functions: elevator, rudder, ailerons, spoiler and Flaps

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