25:
236:, and employs the HQ 21/II, a relatively thick profile (ca. 17.5%). This wing is 'blown' on the underside by 900 small holes to achieve a controlled transition from laminar to turbulent flow without additional drag. However, these holes are prone to clogging due to dirt, moisture and wing surface polishing, which makes them less effective over time. As with any racing glider, the thickness of the wing makes it relatively sensitive to performance degradation due to contamination by insect impacts or rain drops.
99:
239:
It is agile and a good climber, but slightly underperforms compared to its competitors in cruising flight, especially at higher speeds. The later DG-303 version with a new wing profile and winglets was developed that delivers higher performance at low to medium speeds plus increased aileron response.
250:
The operational limits were reduced in April 2007 after a defect was detected in the main spar which affects an unknown number of gliders. Consequently, the maximum speed and maximum manoeuvring speed was reduced to 135kts and 95kts respectively, maximum takeoff weight was restricted to 450kg, and
243:
The DG-300 has typical DG features, which improve comfort and safety if at a performance cost. It has the large cockpit typical of DG giving excellent comfort, especially in high-altitude flight where the full-length canopy allows the feet to be warmed by sunlight. The view from the cockpit is
251:
aerobatic flight was prohibited - even for the Acro variants. These restrictions are removed if both spars are inspected and it is confirmed that the defect is not present. However, if the defect is found, repair is impossible and the restrictions continue to apply.
566:
54:
319:
Intended for club use, with fixed undercarriage. Underwing blowholes are replaced with turbulator tape. Retractable undercarriage can be retrofitted.
216:. A total of 511 of all versions were built since production started in 1983. Representative contemporary types from competing manufacturers are the
658:
559:
76:
648:
643:
552:
233:
534:
37:
524:
247:
After the bankruptcy of Glaser-Dirks the newly founded DG Flugzeugbau GmbH took over the servicing of these gliders.
47:
41:
33:
397:
58:
653:
261:
201:
622:
475:
217:
144:
617:
470:
221:
612:
607:
602:
592:
587:
209:
205:
539:
197:
193:
128:
340:
465:
544:
487:
291:
Self-trimming spring system for the elevator, with trigger release on the control stick.
575:
332:
213:
149:
124:
98:
637:
325:
Strengthened fully-aerobatic variant (restricted from aerobatic flight since 2007).
506:
DG Flugzeugbau
Technical Note 359/24. EASA Airworthiness Directive 2007-0100-E.
336:
240:
A fully aerobatic version (the Acro) was also sold, stressed for +7/-5g.
108:
406:
529:
104:
300:
Large canopy with low sill giving excellent in-flight visibility.
514:
548:
335:; available in standard, club, and acro versions, built by the
276:
Conventional T-tail with fixed stabiliser and moving elevator.
232:
The DG-300 has a flapless wing with triple taper based on the
18:
519:
525:
Richard
Johnson, A FTE of the DG-300, Soaring, August 1985
279:
Retractable, sprung undercarriage in a sealed gear box.
297:
Water ballast bags in the wings for 130 or 190 litres.
244:
superb, adding to the pleasure and safety of flight.
460:
Aircraft of comparable role, configuration, and era
178:
173:
165:
155:
143:
135:
120:
115:
91:
282:Large 5"x5" hub main wheel, 200x50 mm tail wheel.
46:but its sources remain unclear because it lacks
331:With an improved aerofoil section and optional
294:Schempp-Hirth air brakes on upper wing surface.
560:
8:
264:rovings, wing shell of GRP / foam sandwich.
567:
553:
545:
88:
438:270 km/h (167 mph, 145 kn)
77:Learn how and when to remove this message
499:
369:130 kg (287 lb) water ballast
7:
393:10.3 m (110.5 sq ft)
381:15.00 m (49 ft 2 in)
375:6.80 m (22 ft 8 in)
14:
387:1.39 m (4 ft 6 in)
97:
23:
576:Glaser-Dirks and DG Flugzeugbau
450:0.59 m/s (115 ft/min)
16:German single-seat glider, 1983
288:Automatic control connections.
1:
212:'s Slovenian partner company
204:. The DG-300 was designed by
196:single-seat high-performance
150:Glaser-Dirks Flugzeugbau GmbH
659:Aircraft first flown in 1983
348:Specifications (DG-303 Elan)
285:Parallelogram control stick.
270:Rudder: GRP / foam sandwich.
234:Hansjörg Streifeneder Falcon
535:Main spar defect discussion
423:500 kg (1,102 lb)
313:Initial production version.
675:
583:
417:238 kg (525 lb)
411:Horst & Quast HQ21/II
96:
210:Glaser-Dirks Flugzeugbau
202:glass-reinforced plastic
32:This article includes a
649:DG Flugzeugbau aircraft
644:1970s German sailplanes
354:General characteristics
61:more precise citations.
515:DG Flugzeugbau website
476:Rolladen-Schneider LS4
228:Design and development
218:Rolladen-Schneider LS4
540:Technical Note 359-24
471:Schempp-Hirth Discus
442:Maximum glide ratio:
273:Fuselage: GRP shell.
267:Elevator: GRP shell.
222:Schempp-Hirth Discus
208:and manufactured by
530:Sailplane Directory
190:Glaser-Dirks DG-300
116:General information
343:until end of 2006.
34:list of references
631:
630:
466:Schleicher ASW 19
186:
185:
87:
86:
79:
666:
569:
562:
555:
546:
507:
504:
431:
356:
322:DG-300 Elan Acro
316:DG-300 Club Elan
107:Air Force Base,
101:
89:
82:
75:
71:
68:
62:
57:this article by
48:inline citations
27:
26:
19:
674:
673:
669:
668:
667:
665:
664:
663:
654:T-tail aircraft
634:
633:
632:
627:
579:
573:
511:
510:
505:
501:
496:
488:List of gliders
457:
427:
352:
350:
307:
260:Wings: spar of
257:
230:
161:
136:National origin
111:
83:
72:
66:
63:
52:
38:related reading
28:
24:
17:
12:
11:
5:
672:
670:
662:
661:
656:
651:
646:
636:
635:
629:
628:
626:
625:
620:
615:
610:
605:
600:
595:
590:
584:
581:
580:
574:
572:
571:
564:
557:
549:
543:
542:
537:
532:
527:
522:
517:
509:
508:
498:
497:
495:
492:
491:
490:
479:
478:
473:
468:
456:
453:
452:
451:
445:
439:
436:Maximum speed:
425:
424:
418:
412:
403:
394:
388:
382:
376:
370:
364:
349:
346:
345:
344:
329:
326:
323:
320:
317:
314:
311:
306:
303:
302:
301:
298:
295:
292:
289:
286:
283:
280:
277:
274:
271:
268:
265:
256:
255:Major features
253:
229:
226:
214:Elan (company)
194:Standard Class
184:
183:
180:
176:
175:
171:
170:
167:
163:
162:
159:
157:
153:
152:
147:
141:
140:
137:
133:
132:
129:Standard-class
122:
118:
117:
113:
112:
102:
94:
93:
85:
84:
42:external links
31:
29:
22:
15:
13:
10:
9:
6:
4:
3:
2:
671:
660:
657:
655:
652:
650:
647:
645:
642:
641:
639:
624:
621:
619:
616:
614:
611:
609:
606:
604:
601:
599:
596:
594:
591:
589:
586:
585:
582:
577:
570:
565:
563:
558:
556:
551:
550:
547:
541:
538:
536:
533:
531:
528:
526:
523:
521:
518:
516:
513:
512:
503:
500:
493:
489:
486:
485:
484:
483:
482:Related lists
477:
474:
472:
469:
467:
464:
463:
462:
461:
454:
449:
448:Rate of sink:
446:
443:
440:
437:
434:
433:
432:
430:
422:
421:Gross weight:
419:
416:
415:Empty weight:
413:
410:
408:
404:
401:
399:
395:
392:
389:
386:
383:
380:
377:
374:
371:
368:
365:
362:
359:
358:
357:
355:
347:
342:
338:
334:
330:
327:
324:
321:
318:
315:
312:
309:
308:
304:
299:
296:
293:
290:
287:
284:
281:
278:
275:
272:
269:
266:
263:
259:
258:
254:
252:
248:
245:
241:
237:
235:
227:
225:
223:
219:
215:
211:
207:
206:Wilhelm Dirks
203:
199:
195:
191:
181:
177:
172:
168:
164:
160:Wilhelm Dirks
158:
154:
151:
148:
146:
142:
138:
134:
130:
126:
123:
119:
114:
110:
106:
100:
95:
90:
81:
78:
70:
67:November 2022
60:
56:
50:
49:
43:
39:
35:
30:
21:
20:
597:
502:
481:
480:
459:
458:
447:
441:
435:
428:
426:
420:
414:
405:
398:Aspect ratio
396:
390:
384:
378:
372:
366:
360:
353:
351:
249:
246:
242:
238:
231:
189:
187:
179:First flight
166:Number built
145:Manufacturer
127:(previously
103:A DG-300 at
73:
64:
53:Please help
45:
429:Performance
328:DG-303 Elan
310:DG-300 Elan
200:built from
131:) sailplane
59:introducing
638:Categories
520:AMS-Flight
391:Wing area:
341:AMS-Flight
125:Club-class
379:Wingspan:
367:Capacity:
337:Slovenian
578:aircraft
455:See also
339:company
333:winglets
305:Variants
220:and the
156:Designer
109:Portugal
623:DG-1000
494:Sources
407:Airfoil
385:Height:
373:Length:
174:History
139:Germany
55:improve
618:DG-800
613:DG-600
608:DG-500
603:DG-400
598:DG-300
593:DG-200
588:DG-100
198:glider
105:Sintra
92:DG-300
361:Crew:
192:is a
40:, or
402:21.9
188:The
182:1983
121:Type
363:One
262:GRP
169:511
640::
444:42
224:.
44:,
36:,
568:e
561:t
554:v
409::
400::
80:)
74:(
69:)
65:(
51:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
