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Statements

Subject Item
dbr:Akaflieg_Darmstadt_D-40
rdf:type
wikidata:Q11436 yago:Cognition100023271 yago:Concept105835747 yago:Idea105833840 yago:Type105840188 dbo:Aircraft yago:Category105838765 yago:Content105809192 yago:PsychologicalFeature100023100 yago:Kind105839024 schema:Product dbo:MeanOfTransportation owl:Thing yago:Abstraction100002137
rdfs:label
Akaflieg Darmstadt D-40
rdfs:comment
The Akaflieg Darmstadt D-40 is an experimental variable geometry single seat sailplane, fitted with almost full span, camber changing flaps for optimum aerodynamics in weak thermals and integrated into the wing so as to minimise flap tip drag. One flew successfully but the D-40, like other variable geometry sailplanes, was not commercialised.
dcterms:subject
dbc:1980s_German_sailplanes dbc:Akaflieg_Darmstadt_aircraft dbc:Aircraft_first_flown_in_1986
dbo:wikiPageID
34533093
dbo:wikiPageRevisionID
1050869868
dbo:wikiPageWikiLink
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owl:sameAs
wikidata:Q4700112 n19:4NB1D freebase:m.0j272yr n21:Akaflieg_Darmstadt_D-40
dbp:spanM
15
dbp:stallSpeedKts
35
dbp:wingAreaNote
flap retracted; 11.5 m2 extended
dbp:wingAreaSqm
9.5
n23:m
34.74
dbp:wingLoadingNote
minimum, flaps in, 52.63 kg/m2 maximum. Flaps out, 28.70 kg/m2 minimum, 43.48 kg/m2 maximum
dbp:wikiPageUsesTemplate
dbt:Short_description dbt:Reflist dbt:Cite_web dbt:Aircraft_specs dbt:Aircontent dbt:Infobox_aircraft_type dbt:Akaflieg_Darmstadt_aircraft
dbp:primeUnits%3F_
met
dbp:firstFlight
1986-08-15
dbp:nationalOrigin
dbr:Germany
dbp:crew
1
dbp:designer
K. J. Heer and D. Teves
dbp:manufacturer
dbr:Akaflieg_Darmstadt
dbp:ref
Jane's All the World's Aircraft 1987/8
dbp:type
Experimental high performance sailplane
dbo:abstract
The Akaflieg Darmstadt D-40 is an experimental variable geometry single seat sailplane, fitted with almost full span, camber changing flaps for optimum aerodynamics in weak thermals and integrated into the wing so as to minimise flap tip drag. One flew successfully but the D-40, like other variable geometry sailplanes, was not commercialised.
dbp:airfoil
Inner Wortmann 67 - VG - 170 ; at tips, Wortmann FX60 - 126
dbp:aspectRatio
23.7
dbp:emptyWeightKg
284
dbp:gLimits
+5.3/-2.6
dbp:grossWeightKg
374
dbp:grossWeightNote
Maximum 500 kg with water ballast
dbp:heightM
1.47
dbp:lengthM
6.75
dbp:maxSpeedKmh
295
dbp:maxSpeedNote
smooth air; rough air and aero-tow 190 km/h
dbp:numberBuilt
1
prov:wasDerivedFrom
wikipedia-en:Akaflieg_Darmstadt_D-40?oldid=1050869868&ns=0
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10358
dbo:numberBuilt
1
dbo:manufacturer
dbr:Akaflieg_Darmstadt
dbo:origin
dbr:Germany
dbo:type
dbr:Experimental_aircraft
foaf:isPrimaryTopicOf
wikipedia-en:Akaflieg_Darmstadt_D-40