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realised that the span, strength and very low weight of this wing allowed for a self-launching engine to be carried in the glider without an unacceptable penalty when soaring in weak conditions. The DG-400 was created as a result. It first flew in May 1981.
228:, which is a relatively large unit with electric starter and electric retraction. This powerful installation, with a user-friendly engine control unit, made the DG-400 easier to operate than other self-launching gliders.
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constitute a single unit that extends into the airflow (in more recent self-launchers the engine usually stays inside the fuselage). The type may be flown either with 15 metre or 17 metre wingtips.
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The DG-400 uses the wings and most systems of the DG-202. It has a modified fuselage with a slightly enlarged tailcone and carbon fibre reinforcements to accommodate the
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The DG-400 was not aimed at competitions, but rather at leisure flying. Nevertheless, several World
Gliding Records have been achieved flying this type.
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between 1981 and 1992. It was the first self-launching motorglider with retractable engine and propeller to be produced in large numbers.
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50 L (13 US gal; 11 imp gal) with optional tanks in lieu of water ballast
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had fallen enough in the late 1970s to allow its use in the wing spars of high-performance
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two-stroke retractable pylon mounted air-cooled piston engine, 32 kW (43 hp)
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2-bladed
Hoffman fixed pitch propeller, 1.29 m (4 ft 3 in) diameter
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3.90 m/s (768 ft/min) at 80 km/h (43 kn; 50 mph)
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130 km/h (70 kn; 81 mph) on winch launch
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270 km/h (170 mph, 150 kn) in smooth air
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20 L (5.3 US gal; 4.4 imp gal)
212:. Glaser-Dirks introduced a carbon wing variant of the
533:. London: Jane's Information Group. pp. 620–621.
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190 km/h (100 kn; 120 mph) in rough air
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root:Wortmann FX-67-K-170-17; tip
Wortmann FX-60-K-126
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190 km/h (100 kn; 120 mph) on aero-tow
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90 L (24 US gal; 20 imp gal)
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400 km (250 mi, 220 nmi) level flight
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750 km (400 nmi; 470 mi) cruise/soar
382:130 km/h (81 mph, 70 kn) economical
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484:45 at 110 km/h (59 kn; 68 mph)
393:140 km/h (76 kn; 87 mph) max
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231:As was typical for the time, the engine,
69:Learn how and when to remove this message
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32:This article includes a list of general
531:Jane's All the World's Aircraft 1988-89
502:43.5 kg/m (8.9 lb/sq ft)
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407:63 km/h (39 mph, 34 kn)
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16:German single-seat motor glider, 1981
290:10.57 m (113.8 sq ft)
18:
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38:it lacks sufficient corresponding
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284:1.4 m (4 ft 7 in)
278:17 m (55 ft 9 in)
188:is a single-seat self-launching
89:
23:
687:Single-engined tractor aircraft
609:Glaser-Dirks and DG Flugzeugbau
272:7 m (23 ft 0 in)
246:Specifications (17 metre wings)
529:John W.R. Taylor, ed. (1988).
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1:
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496:0.5 m/s (98 ft/min)
472:5,000 m (16,000 ft)
712:Aircraft first flown in 1981
568:DG400 pictures & details
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511:0.0714 kW/kg (0.0433 hp/lb)
320:460 kg (1,014 lb)
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216:about this time. Designer
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314:305 kg (672 lb)
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682:DG Flugzeugbau aircraft
677:1980s German sailplanes
573:German Gliding Magazine
257:General characteristics
53:more precise citations.
558:DG-Flugzeugbau website
192:that was produced by
692:Mid-engined aircraft
482:Maximum glide ratio:
563:Sailplane Directory
318:Max takeoff weight:
186:Glaser-Dirks DG-400
177:Glaser-Dirks DG-200
98:General information
412:Never exceed speed
707:Mid-wing aircraft
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157:Introduction date
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470:Service ceiling:
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40:inline citations
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114:National origin
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107:18 metre class
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500:Wing loading:
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494:Rate of sink:
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218:Wilhelm Dirks
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59:December 2012
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405:Stall speed:
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295:Aspect ratio
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206:carbon-fibre
204:The cost of
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194:Glaser-Dirks
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165:First flight
144:Number built
128:Glaser-Dirks
123:Manufacturer
65:
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37:
373:Performance
365:Propellers:
355:Powerplant:
200:Development
190:motorglider
51:introducing
671:Categories
516:References
507:Power/mass
288:Wing area:
34:references
476:g limits:
359:Rotax 505
276:Wingspan:
251:Data from
233:propeller
109:sailplane
611:aircraft
168:May 1981
134:Designer
656:DG-1000
304:Airfoil
282:Height:
270:Length:
210:gliders
152:History
117:Germany
47:improve
651:DG-800
646:DG-600
641:DG-500
636:DG-400
631:DG-300
626:DG-200
621:DG-100
537:
445:Range:
226:engine
214:DG-200
84:DG-400
36:, but
478:+6 -4
264:Crew:
237:pylon
535:ISBN
357:1 ×
299:27.3
184:The
160:1981
103:Type
147:290
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601:e
594:t
587:v
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