Keystone B-3

Keystone B-3
Pix.gif Keystone B-3 Silhouette d’un avion militaire.
060421-F-1234P-004.jpg
Un B-3 au sol

Constructeur Drapeau : États-Unis Keystone Aircraft Corporation
Rôle Bombardier
Statut Retiré du service
Nombre construits 63
Équipage
5
Motorisation
Moteur Pratt & Whitney R-1690-3 Hornet
Nombre 2
Type 9 cylindres en étoile
Puissance unitaire 525 ch
Dimensions
Envergure 22,8 m
Longueur 14,9 m
Hauteur 4,8 m
Surface alaire 106,4 m2
Masses
À vide 5 875 kg
Avec armement 9 875 kg
Performances
Vitesse de croisière 158 km/h
Vitesse maximale 183 km/h
Plafond 3 870 m
Vitesse ascensionnelle 81 m/min
Rayon d’action 1 400 km
Charge alaire 55,42 kg/m2
Armement
Interne 3 mitrailleuses Browning 1919 (7,62 mm)
Externe 1 800 kg de bombes

Le Keystone B-3 est un bombardier développé aux États-Unis à la fin des années 1920. Il est utilisé par l'USAAC entre 1931 et 1937.

Sommaire

Historique

Notes et références

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