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LET L-13 Blanik
Specifications
- Span 16.2 m./ 53.1 ft
- Area 19.1 sq. m. / 206 sq.ft.
- Aspect ratio 13.7
- Airfoil NACA 63(2) A-615 root, -612, tip
- Empty weight 292 kg. / 644 lb.
- Payload 208 kg. / 458 lb.
- Gross weight 500 kg. / 1,102 lb.
- Wing loading 26.17 kg. / sq. m. / 5.35 lb. / sq. ft.
- Structure all metal, except fabric covered control surfaces.
Performance
- L/D max. 28 90 kph / 49 kt / 56 mph
- Min. sink 0.76 m/s / 2.5 fps / 1.48 kt
- 72 kph / 39 kt / 45 mph
Other
- Country of origin Czech Republic
- Designer Karel Dlouhy
- No. of seats 2
- No. built about 2,650
- No. in the U.S. approx. 175
Although out of production for a number of years, the Blanik remains one of the most active two-place training
and club aircraft throughout the world. An all-metal flush riveted sailplane with fabric covered control surfaces,
the Blanik is stressed for aerobatics and has held many two-place records. It is equipped with DFS type airbrakes
and Fowler-type flaps. The main wheel has an oleo strut shock absorber and is partially retractable. The horizontal
tail surfaces fold up parallel to the fin for transportation and storage. ATC
LET L 23 Super Blanik
Specifications
- Span 16.2 m./ 53.1 ft (18.2 m./ 59.7 ft.)
- Area 19.15 sq. m. /206.1 sq.ft.
- (20.00 sq. m./ 215.27 sq. ft.)
- Aspect ratio 13.7 (16.6)
- Airfoil NACA 63/2A-615, root; 63/2A-612, tip
- Empty weight 310 kg. / 683 lb.
- Payload 200 kg. / 441 lb.
- Gross weight 510 kg. / 1,124 lb.
- Wing loading 26.63 kg. / sq. m. / 5.45 lb. / sq. ft.
- (25.50 kg./ sq. m. / 5.22 lb. / sq. ft.)
- Structure all metal, except for fabric control surfaces, GFRP wingtips
Performance
- L/D max. 27 87 kph / 47 kt / 54 mph
- (32 91 kph/ 49 kt/ 56 mph)
- Min. sink 0.85 m/s / 2.8 fps / 1.66 kt
- 80 kph / 42 kt / 50 mph
Other
- Country of origin Czech Republic
- No. of seats 2
- No. in the U.S. about 60
The Super Blanik, which first flew in 1988, is a development of the L 13 Blanik, but without flaps. It has
a T-tail, DFS type airbrakes and a swiveling tail wheel. It retains the semi-retractable shock absorbed main wheel
of the L 13. The opening part of the cockpit canopy is in two pieces, the front cockpit cover opening sideways
and the rear moving up and back over the center fuselage. Wingtip extensions are optional, increasing the span
to 18.2 m./ 59.7 ft., however, aerobatics are only permitted when the extensions are not fitted. ATC
LET L 33 Solo
Specifications
- Span 14.12 m./ 46.3 ft
- Area 11.0 sq. m. / 118.4 sq.ft.
- Aspect ratio 18.12
- Airfoil Wortmann FX-60-17A11-182, root;
- FX-60-126, tip
- Empty weight 210 kg. / 463 lb.
- Payload 130 kg. / 287 lb.
- Gross weight 340 kg / 750 lb
- Wing loading 30.91 kg. / sq. m. / 6.33 lb. / sq. ft.
- Structure all metal, except fabric covered rudder
Performance
- L/D max. 31 83 kph / 45 kt / 52mph
- Min. sink 0.69 m/s / 2.25 fps / 1.33 kt
- 68 kph / 38 kt / 44 mph
Other
- Country of origin Czech Republic
- Designer Marian Meciar and Vaclav Zajic
- No. of seats 1
- No. in the U.S. about 30
The Solo, which first flew in 1992, is a flapless sailplane designed to the OSTIC World Class sailplane specifications
for the early solo/club pilot. Construction follows Blanik practice with all metal surfaces and flush rivets. It
has top surface only Schempp-Hirth airbrakes. The fixed main wheel has an oleo-pneumatic shock absorber. ATC
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