The L-13 Blaník is a two-seater trainer glider produced by Let Kunovice since 1956. It is the most numerous and widely used glider in the world. In United States Air Force Academy service, it is designated TG-10C and was used for basic flight training up to 2012.
14-661: L13 or L-13 may refer to: Vehicles [ edit ] LET L-13 Blaník , a trainer glider Soviet submarine L-13 , a Leninets -class submarine Stinson L-13 , an American utility aircraft Zeppelin LZ 45 , a German airship Proteins [ edit ] 60S ribosomal protein L13 Mitochondrial ribosomal protein L13 Ribosomal protein L13 leader ,
28-619: A family of human genes Other uses [ edit ] Barcelona Metro line 13 Kwese language Nissan L13 engine [REDACTED] Topics referred to by the same term This disambiguation page lists articles associated with the same title formed as a letter–number combination. If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=L13&oldid=1090387011 " Category : Letter–number combination disambiguation pages Hidden categories: Short description
42-461: A precaution, the manufacturer issued an emergency bulletin on 18 June 2010 directing that each aircraft be grounded pending a full inspection of wing spars, and compilation of usage patterns from logbook records. Following inspection, the aircraft would be permitted to fly on a non-aerobatic basis only. The Blanik has been owned and operated by individuals and gliding schools around the world. Some individuals club together to form syndicates to operate
56-564: Is different from Wikidata All article disambiguation pages All disambiguation pages LET L-13 Blan%C3%ADk The L-13 Blaník was designed by Karel Dlouhý of VZLÚ Letňany c. 1956, building upon the experience gained with the Letov XLF-207 Laminar , the first Czech glider to employ laminar flow wing profiles. The L-13 was developed as a practical glider suitable for basic flight instruction, aerobatic instruction and cross-country training. This design concept
70-578: The Blaník as a primary trainer is due to a blend of characteristics that facilitate progress of ab initio students towards solo flight, namely: slow landing speed, ample control deflections and an effective rudder. These are in effect typical of wood-and-fabric primary trainers such as the ASK 13 , which the Blaník resembles in handling, though not in materials and construction. The Blaník was originally stressed for simple aerobatics, including inverted flight where
84-503: The Ka 7, which allows for a large blown canopy providing a good all-round view for both pilots. The 6 degree forward sweep of the wing allows the rear pilot to be seated near the centres of gravity and lift . The glider therefore maintains the same trim whether flown single seated or dual seated. The D-type leading edge torsion box is of plywood and the whole wing is fabric -covered. There are metal Schempp-Hirth air brakes above and below
98-455: The aircraft has a single occupant. As a result of this latter requirement, intermediate level aerobatic training in the Blaník was done in solo flight with the instructor on the ground or in another aircraft. A manufacturer airworthiness directive in June 2010 asserted a prohibition against all aerobatic manoeuvres. A Blaník L-13 (not an L-13AC, which has a different wing and type certificate)
112-419: The aircraft. A small number have been operated by the military. [REDACTED] Estonia [REDACTED] Soviet Union Data from The World's Sailplanes:Die Segelflugzeuge der Welt:Les Planeurs du Monde Volume II General characteristics Performance Related development Related lists Alexander Schleicher ASK 13 The ASK 13 is a two-seater glider that
126-586: The centre of gravity. The original design featured a skid under the nose and tail, although on many K13s these have been replaced with wheels to make handling on hard surfaces easier. It first flew in prototype form in July 1966 and by January 1978 a total of approximately 700 ASK 13s had been built by Schleicher. They are superb training gliders because they stall and spin well but these manoeuvres are easy to recover from. Their construction also gives them great strength and yet they are easily repairable. The aircraft
140-441: The wing, and the wooden ailerons are fabric-covered. The fuselage is a welded steel tube structure with spruce stringers and fabric-covered overall, except for the nose, which is glassfibre. The tail unit is plywood-covered, except for the rear part of the rudder and elevators, which are fabric-covered, and there is a Flettner trim tab in the starboard elevator. Landing gear consists of a non-retractable sprung wheel, mounted aft of
154-452: Was built by German sailplane manufacturer Alexander Schleicher Gmbh & Co . It was and still is widely used for basic training of glider pilots . In 1965 Rudolf Kaiser continued development of the two-seat Ka 2 and Schleicher Ka 7 by introducing the ASK 13, using a mixture of materials including metal, wood and glassfibre . It has swept-forward single-spar wings, positioned lower than in
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#1732787867123168-492: Was combined with true and tested technology: metal construction, NACA laminar profiles and many standard-issue components of the Soviet aerospace industry . The Blaník entered production in 1958 and quickly gained popularity as an inexpensive, rugged and durable type, which was easy to fly and operate. It was widely adopted in the Soviet bloc and was exported in large numbers to Western Europe and North America. Total production
182-552: Was in excess of 2650, or more than 3000 if variants are included. More than half a century after its first flight it is still the most common glider in the world. The Blaník achieved many two-seater world distance records during the 1960s. The Blaník inspired other designs, notably the Démant and L-21 Spartak single-seaters developed to equip the Czechoslovak team in the 1956 and 1958 World Championships. The effectiveness of
196-461: Was involved in a fatal accident in Austria on 12 June 2010, when a wing spar failed at height, leading to separation of the wing and loss of control of the aircraft. A newspaper reported the cause of the failure as excessive stress during a manoeuvre. However, the preliminary investigation revealed that the fracture may have been due to metal fatigue , and not necessarily from being overstressed. As
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