Kegel III Elida

DONNÉES GÉNÉRALES
Année du premier vol
(ou de design, si seul projet)		 1929
Pays Allemagne
Designer(s) ARNOLT, Emil & KEGEL, Max
Premier constructeur Kegel Flugzeugbau, Kassel (DE)
Type d'appareil Planeur
Fonction Performance

SPÉCIFICATIONS TECHNIQUES
Envergure 18.7 m
Longueur 7 m
Hauteur 1.21 m
Allongement17.5
Surface alaire20 m2
Profil aileGöttingen 549
Masse à vide186.2 kg
Masse maxi256.2 kg
Charge alaire12.8 kg/m2
Vitesse mini--
Vitesse maxi--
Finesse maxi
Taux de chute mini0.65 m/s
Nb sièges1
StructureBois et toile

[Tecnica del volo a vela, 1936]
[Vom Hangwind zur Thermik, Riedel]

AUTRES INFORMATIONS

Constructeur(s)
ConstructeurConstruits
Kegel Flugzeugbau, Kassel (DE)1
Nombre total de constructions1
Infos techniquesThe glider "Elida" is of the cantilever wing type, with a large aspect-ratio and a thin wing-section. The wing is in the usual manner built in three sections, with a rectangular middle portion and strongly tapered elliptical outer portions. The internal construction differs from the ordinary type of design, in order to attain greater stiffness of the wing, with its narrow thickness in proportion to span. The main spar, situated at the highest point of the wing-section, is almost square in the inner portion of the wing, and is stiffened by means of three strips of wood, thus forming in effect two box spars placed side by side. Behind the main spar a light
additional spar is situated at about f of the way along the wing-chord. As far as this additional spar the wing is covered on both sides with plywood. As a result of this method of construction the wing naturally became somewhat heavy, so that the gain expected from the unsupported type of wing with good aspect-ratio did not come to fulfilment. The specific wing weight of 6.9 kg. per sq. metre is as high as that of the "Kakadu."
The body, of egg-shaped section, bears some resemblance to that of the "Wien." The cross-section however is smaller and the nose more slender. The weight of the body is proportionately light, so that the great weight of the wiiiir is to some extent compensated for. The attachment and the form of the empennage conforms to the "Professor" type of construction, but the very short length of the rudder attachment appears to be rather too weak. The aircraft was disappointing in its flying performance, when one considers that, with an aspect-ratio of 1 to 17.5 and a wing-loading of 12.8 kg. per sq. m., its rate of descent must have been less than that of most of the other machines.
Evidently its controllability was prejudiced by the heavy wing and the consequent moment of inertia about the vertical and longtitudinal axes. On the other hand it might be beneficial with such a good aspect-ratio to arch the camber of the middle portion of the wing more strongly.
Histoire résuméePour participer au concours de la Rhön en 1929, la firme Kegel Flugzeugbau avait construit le planeur de grande performance Elida, pour le Niederhessischen Vereins für Luftfahrt e. V. (NVFL) [Union aéronautique de Basse Hesse], ainsi aussi que le biplace Herkules. Mais les performances ne furent pas au rendez-vous durant ce concours.
Liens personnalités Pas de personnalité associée.
Compléments docs

SOURCES DOCUMENTAIRES

Liens WEBPas de site référencé.
LivresKassel und die Luftfahrtindustrie seit 1923
par NAGEL, Rolf & BAUER, Thorsten (2015) [p. 87. Mention].
Tecnica del Volo a Vela
par BARTOCCI, E. & RIGHETTI, M. (1936) [p. 46-47. Note + photo + specs].
Vom Hangwind zur Thermik
par RIEDEL, Peter (1984) [p. 19. Plan 3 vues].
Autres sourcesTechnical report of the Rhön glider meeting 1929, par A. Lippisch, Wasserkuppe, Rhön, The British Gliding Association Journal vol. 1 n° 3, janvier 1931 p 66-82. Publié in "Zeitschrift fiir Flugtechnik und Motorluftschriffahrt," volume 21, No. 4, p. 92 ; editeur R. Oldenbourg, Munich. Texte + plan 3 vues + specs.

MODÈLES RÉDUITS

Pas de plan ou kit référencé.
Fiche n° 3796 [Dernière mise à jour : 2017-03-31]