Height: 1.8 m
Wing area: 20.0 sq
Extension wing: 16.2
wing profile: NACA43018 the NACA43012A
Weight Equity: 326 kg
Total weight: 500 kg
load area: 25.0 k G / sq
Excellence: 26 at 80 km / h
descent speed: 0.82 m / s at 68 km / h
Speed \u200b\u200bmin.: 52 km / h
allowable speed: 200 km / h
third turn and the first Polish post-war construction of two-seater glider SZD-9a is the "Stork". Its predecessors were the pre-1939 structures, gliders "ITS" and "The Seagull." Lack of high-performance two-seater glider somehow forced to develop Gliding Works of structure, because the Polish were saturated jednomiejscowymi aeroclubs "Flies-ter", and the international competition it was difficult to compete in the class of two-seater gliders in the former German school, "Crane." The prototype of "Stork" (SP-1217, nr.fabr 071) first flew March 10, 1952 r, and its designers were engineers Marian Wasilewski, Roman and Justin Zatwarnicki Sandauer. The glider was characterized by a number of innovative and interesting design solutions which place him in a row the world's most modern gliders: simple wolnonośne wings with a negative slant, comfortable cabin with seats in tandem enclosed spacious saloon giving excellent visibility, especially from the front cab, steel truss in the central part of the hull node representing the mounting wings and drive components, easy assembly and disassembly. For the series, after the factory tests, a few months later came the refined version of SZD-9a. In relation to the second prototype of the SZD-9-2 (SP-1218) introduced many changes and improvements: stiffer, rejected an emergency front-door limousine, a new adjustable pedals in front of the cabin, the security indicator halves of split tail, wing spars thinner, more secure lock brakes locked aerodynamic reduced forces on stacked, moved to the rear wheel chassis reduces the force needed to lift the tail, above all, by changing the wedge angle of achievement of the perfection of the wing 26 of the 21 existing units. Collection of operating experience has allowed the introduction of further improvements and modified versions were created 1B (with increased tail surface height), 1C (a reduced taper of the wings, tail height was used unshared and trimmer, and a new rear skid), 1D (larger wheel chassis size 350x135) And the last the most serious, was to adapt the "Stork" to the role of the glider school (inexorable time has taken its toll.) 1E is a version of the prototype, bearing signs of SP-2506 (rebuilt from Stork nr.fabr 1D: F-873) flew in the first half of 1967, prototype (received a new number. Pos P-387) still retains the geometry of 1D version of the characteristic rounded rudders and wing tips and visible at first glance, innovation was a two-part windows, no existing fixed windscreen, and the trailing link landing gear with long rubber cushion. The rounded ends of the wings and tail changed soon the simple (simplified technology), and a change in equipment cabins. In this form, the glider began to substitute for rubbing the "Heron" and the next day laminate "Owl" is a basic glider school. At Stork realized some interesting ideas constructors: a modification involving the performance polepszającą building krokodylowych valves, ballast tanks, reinforced chassis and a new array of instruments (Stork Z), and the use of four engines to power the pulse of about 6 kg each built in pairs on the wings, as an alternative to take-off at the lobby for the plane (Stork Pulse) This idea, however, did not work and was abandoned. Ideal for those times performance glider yielded several great feats: world record of Henry Zydorczak (E. Oles passenger) of the triangle 200 km - the result of 66.05 km / h-back docel 543.5 km (Ratusinski - Maciejewski) docel 540 km (Majewska - Raze), the triangle 100 km - speed 109 km / h (Kluk-Wyźanowski) and 76.19 km / h (Majewska-Raze), 200 km triangle-speed 66.55 km / h (Majewska-Adamczyk) Triangle 300 km-speed 61.72 km / h (Bajewska-Tomala). The production branch of the Stork Gliding in Jeżowie Sudeckim ended in 1976. Almost half of production exported to 27 countries worldwide.
TECHNICAL DESCRIPTION
Two-trainer sailplane of wooden construction, with fixed landing gear and tail classic.
SPECIFICATIONS AND PERFORMANCE
| Span: | 17.805 m |
| Length: | 8.21 m |
| Height: | 1.7 m |
| Wing area: | 20.0 m |
| Elongation: | 15.85 |
| chord wings - at the base: | 1.664 m |
| - Final: | 0.51m |
| wing Height: | 4 ° |
| wing profile: | NACA 43018> 43012 |
| Fluid tail height: | 0.62 m |
| weight: | 345 kg |
| Weight Output: | 195 kg |
| Max.masa Page: | 540 kg |
| Max. surface load | 24.4 kg / m 2 |
| Excellence: | 26 |
| at speeds | 80 km / h |
| Economical speed: | 70 km / h |
| the sinking | 0.6 m / s |
| speed limit: | 200 (180) km / h |
| Minimum speed: | 6 0 km / h |
| Towing Speed \u200b\u200bLimit: | 140 km / h |
| winch Speed \u200b\u200bLimit: | 115 (110) km / h |
| Acceptable load factor: | +6.0 / -3.0 (+ 4.0 / -1.5) |
| devastating burden ratios: | 10.5 / -5.25 |
as a curiosity - MOTO STORK (ie motor glider +) 
Height: 1.57 m
Wing Area: 1 2, 51 m²
extension wings 1 7.9
wing shape and : S02-196 Wortmann> S02/1-150
Weight: 225 k g
Total weight: 3 80 k g
load area: 30.38 kg / sq
Excellence: 35 at 80 km / h
descent speed: 0.58 m / s at 70 km / h
Speed \u200b\u200bmin.: 55.0 km / h
permissible speed: 220 km / h
In sp ółczynniki burden perm. : 5.3 g -2.65 g
SOME HISTORY
In 1978, stopped producing wooden glider Pirate. Produced several hundred copies nasyciło Polish for some time (and not only) aeroclubs training equipment. Introduction of laminate Owl m.in a glider school, made it necessary to supplement the missing link in the training cycle: two-seater glider school - seater trainer - the high-performance. We had to think about school and training glider, which unify the operating equipment in the future, replacing not only the Pirate, but the intermediate types, rubbing more and more flies 100 and Standard, a few Seals and Cobra. Also lacking in the world of cheap glider club (the production of K-6 and K-8 in Germany was completed in the years 1972-3). There is a chance for too many hundreds of copies of such a glider, because with the spallation of the older generation equipment, there are many different companies wysokowyczynowych structure completely absorbing capacity of the generators. Of necessity, so older gliders adapted to the role of High Performance treningówek for pilots by picking the first steps in a feat of gliding. Since work on the glider club was conducted at the Centre for Research and Development PDPS since 1973 (the project was developed laminate SZD-47 Club, which was not), but the development and production of family wysokowyczynowych amber led that the only resumed in 1979, as part of the problem of hub 05.6. Formal work on the Junior launched Ordinance No. 5 of the Ministry of Machine Industry 24.05.1979r. Leading designer of the glider pilot has been known mgr.inż Stanislaw Ziętek and technologist Andrew mgr.inż Papiorek. The project was started 1.01.1979r. the technical design and implementation of simplified instrumentation workshop, which came Pre-prototype X-115 flown 31.12.1980r. Works by the test pilot in Bielsko mgr.inż Januarius Roman. Conducted tests in 1981 led to the factory setting of the final solid glider (changes span and stroke and the horizontal tail span ailerons), and the desired characteristics of the pilot team. In the years 1982-1983 was a technical project, which takes into account published in 1981. in Germany set up a "project of the output single-seater glider club class", and in force since 04.01.1980, the airworthiness of aviation JAR 22 categories in use. Pathways prototypes to series production was performed in Bielsko and flew X-116 08.10.1983, and X-132 in November 1983, two Roman flew January. Later that same year, developed and implemented a program of ground static test: The Institute of Aviation made attempts resonant construction, and WSK Mielec performed computational analysis flatterową (first time in communist Poland). Until end of 1984 was completed successfully test prototypes and obtained state certification Polish. Later this year, implementation started in Bielsko SZD-51-1 Junior into production, developing technical documentation and instrumentation workshop, started the construction of a series of informational nine gliders, later increased to 12 units.
new concept of technology has enabled a significant reduction of the production cycle to one day in two shifts (which so far only managed to German Groß label), and the shift system enabled the production of the year about 150 gliders (for comparison, production of Jantar Std 3 closed up the number 50 copies). Such results were possible because of the far-reaching integration of structural components and assemblies glider (np.dźwigar with solid laminate wall - patented solution), and modern instrumentation solutions podukcyjnego. The glider's design uses a number of innovations such as fiberglass, covered with canvas rudder of very low mass, mounting hooks starter bearing elements in the cabin, fuselage frames. This leaves a vacuum forming the laminate shells, using the free formation of foremnikach. Thanks to such solutions, the mass serial glider prototype is less than about 20 kg. and from pre-prototype of 25 kg. and ranges from 215 kg. The production technology also enables the use of an alternative domestic textile fabric instead of STR Interglass German company. The simplified approach enables the employment of technology in the production of low-skilled workers, which at that time the difficulties in the labor market was not without significance.
After the start of a series of information (the first 12 copies), the production of the glider was transferred to subsidiaries in Wroclaw And decided to restore full production capacity plant of amber items yet. The first five copies of a series of information about factory numbers B-1495 (SP-3298) to B-1499 (SP-3302) was completed in December 1984. (The first of them flew Stanislaw Zientek). By submitting Aeroklubowi PRL 10 gliders, expected at the first opinions and experiences with their eksploatacii. Next 6 gliders purchased, Switzerland, and inquiries were received from Germany, Austria, Australia, Turkey and East Germany. Intensive exploitation of minor ailments revealed: too frail frame limo causes cracking of the glazing, so from the third series of gliders improved as the stiffer structure. Landing in the adventitious revealed a weak point in a glider: płózka residual metal under the front of hull damage caused in the place of installation of stronger pressures on the podparciu? Murder? during landing. Users homemade zaradzili ago, dismantling płózkę introducing concentrated force, which resulted in the distribution of pressure over a larger area. Also changed the suspension lower rudder and a change in mocowaiu tail height. In the meantime, were conducted glider and fatigue tests, which allowed the extension of service life originally from 1500 to 3000 hours, and then in 1993 from 6000 flight hours. Conducted further tests were to cause fatigue to give the target service life 10,000 hours of flight augured Junior longevity as a popular glider to fly cheap. In the opinion of users is a very good glider, whose operation is a pleasure, also from the technical and maintenance. By the end of 1996, produced 215 copies of the glider, of which 161 were exported to six continents. In 1990, Brazil has purchased a license Junior.
DESCRIPTION TECHNICAL
Single-glider club with glass-epoxy laminate in the system grzbietopłata of T-type tail unit and a fixed undercarriage.
During the operation there were many different paintings done egzeplarzy after accident repairs.
SPECIFICATIONS AND PERFORMANCE
| Span: | 15 m | |
| Length: | 6.69 m | |
| Height: | 1.57 m | |
| Wing area: | 12.51 m 2 | |
| load area: | 30.40 kg / m 2 | |
| Elongation: | 18 | |
| wing Height: | 3 ° | |
| chord przykadłubowa: | 1.115 m | |
| average aerodynamic chord: | 0.88 m | |
| Span tail height: | 2.75 m | |
| Tail Area: | 1.55 m 2 | |
| Maximum weight: | 200-240 kg | |
| Payload weight: | 140 kg | |
| weight max. in flight: | 380 kg | |
| Minimum speed: | 61 km / h | |
| minimum descent: | 0 , 60 m / s | |
| at speed: | 72 km / h | |
| Max. Excellence: | 35 | |
| at speed: | 78 km / h | |
| speed limit: | 220 km / h | |
| Towing Speed \u200b\u200bLimit: | 140 km / h | |
| limit load factors: | 5.3 + / -2.65 g |
