198:
After the repair of some minor damage sustained on the Polon's first, brief flight on 28 August 1923, Błażyński managed three flights in the
Contest, under low wind conditions. The last and best lasted 98 s (49 s according to another source). He took off again after an encouraging wind set in but
199:
found a spectator in his flight path, tried but failed to avoid him and ended inverted in the broken Polon. Neither he nor the spectator were seriously hurt, though the Polon never flew again.
111:
which managed a 186 s flight and the Polon was its only serious competitor, with an early 98 s flight before being written off in a spectator-related accident.
107:
between 30 August and 13 September 1923. The contest was not a great success, limited by novice designers and pilots and a poor site. The clear winner was the
104:
87:
Contest, held in the late summer of 1923. It was of advanced aerodynamical design, showed promise but was wrecked before the best winds arrived.
427:
342:
317:
422:
190:, its mainwheels close to the fuselage bottom and sides on a cross-axle with shock absorbers mounted within the fuselage.
122:
103:
in the late summer of 1920, generated considerable interest in Poland leading to the First Polish Glider
Contest, held at
252:
115:
134:
172:
146:
391:
130:
84:
27:
152:
The Polon had a rectangular section fuselage built around four longerons. The forward part was
338:
313:
309:
302:
161:
114:
Compared with the Akar the Polon was lighter and aerodynamically cleaner. It also had a high
180:
125:(16.7). This wing, essentially rectangular in plan apart from rounded tips and widened
337:(2nd revised ed.). Königswinter: EQIP Werbung & Verlag GmbH. pp. 26–30.
416:
138:
187:
179:
very small, essentially just a mounting for a large area, roughly semi-circular,
156:-covered and the rear fabric-covered, with a wire-braced ply and fabric-covered
100:
176:
157:
108:
361:
142:
126:
165:
153:
119:
96:
168:
81:
42:
118:
compared with most 1923 gliders apart from that of the
149:
between the spars and the lower fuselage longerons.
301:
8:
279:
295:
293:
291:
289:
287:
285:
283:
164:was triangular and mounted a generous
15:
386:
384:
382:
380:
378:
356:
354:
308:. London: Putnam Publishing. p.
7:
171:, leaving a gap below in which the
236:12.3 m (40 ft 4 in)
230:5.7 m (18 ft 8 in)
14:
248:12.5 m (135 sq ft)
242:1.7 m (5 ft 7 in)
210:J.Cynk (1971) except where noted.
80:was a competitor in the First
1:
186:The Polon had a narrow-track
99:glider contest, flown on the
428:Aircraft first flown in 1923
444:
392:"Błażyński "Polon", 1923"
304:Polish Aircraft 1893-1939
269:125 kg (276 lb)
18:
263:65 kg (143 lb)
129:, was built around twin
116:aspect ratio (12.1) wing
423:1920s Polish sailplanes
333:Simons, Martin (2006).
215:General characteristics
141:to the upper fuselage
91:Design and development
95:Reports of the first
335:Sailplanes 1920-1945
300:Cynk, Jerzy (1971).
194:Operational history
396:Samolotypolskie.pl
74:
73:
52:Alojzy Błażyński
435:
407:
406:
404:
402:
388:
373:
372:
370:
368:
358:
349:
348:
330:
324:
323:
307:
297:
217:
175:could work. The
139:shoulder mounted
123:Darmstadt Konsul
67:
39:
31:Type of aircraft
16:
443:
442:
438:
437:
436:
434:
433:
432:
413:
412:
411:
410:
400:
398:
390:
389:
376:
366:
364:
360:
359:
352:
345:
332:
331:
327:
320:
299:
298:
281:
276:
213:
205:
196:
181:balanced rudder
93:
78:Błażyński Polon
65:
60:28 August 1923
38:National origin
37:
32:
12:
11:
5:
441:
439:
431:
430:
425:
415:
414:
409:
408:
374:
350:
343:
325:
318:
278:
277:
275:
272:
271:
270:
264:
258:
249:
243:
237:
231:
225:
204:
203:Specifications
201:
195:
192:
135:fabric covered
92:
89:
72:
71:
68:
62:
61:
58:
54:
53:
50:
46:
45:
40:
34:
33:
30:
25:
21:
20:
13:
10:
9:
6:
4:
3:
2:
440:
429:
426:
424:
421:
420:
418:
397:
393:
387:
385:
383:
381:
379:
375:
363:
357:
355:
351:
346:
344:3-9806773-4-6
340:
336:
329:
326:
321:
319:0-370-00085-4
315:
311:
306:
305:
296:
294:
292:
290:
288:
286:
284:
280:
273:
268:
267:Gross weight:
265:
262:
261:Empty weight:
259:
256:
254:
250:
247:
244:
241:
238:
235:
232:
229:
226:
223:
220:
219:
218:
216:
211:
209:
202:
200:
193:
191:
189:
188:undercarriage
184:
182:
178:
174:
170:
167:
163:
159:
155:
150:
148:
144:
140:
136:
132:
128:
124:
121:
117:
112:
110:
106:
102:
98:
90:
88:
86:
83:
79:
69:
64:
63:
59:
57:First flight
56:
55:
51:
48:
47:
44:
41:
36:
35:
29:
26:
23:
22:
17:
399:. Retrieved
395:
365:. Retrieved
334:
328:
303:
266:
260:
253:Aspect ratio
251:
245:
239:
233:
227:
221:
214:
212:
207:
206:
197:
185:
151:
113:
94:
77:
75:
66:Number built
105:Czarna Góra
101:Wasserkuppe
417:Categories
274:References
246:Wing area:
147:lift wires
234:Wingspan:
208:Data from
177:tailplane
158:empennage
143:longerons
137:. It was
109:SL 1 Akar
49:Designer
173:elevator
127:ailerons
401:20 July
367:24 July
362:"Polon"
240:Height:
228:Length:
166:rhombic
154:plywood
145:, with
341:
316:
169:rudder
160:. The
120:German
97:German
85:Glider
82:Polish
43:Poland
28:glider
19:Polon
222:Crew:
131:spars
24:Role
403:2018
369:2018
339:ISBN
314:ISBN
257:12.1
133:and
76:The
310:668
224:One
162:fin
419::
394:.
377:^
353:^
312:.
282:^
183:.
70:1
405:.
371:.
347:.
322:.
255::
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.