“British Deperdussin Seagull”的意思、由来-开放百科全书

In early 1912, Frederick Koolhoven was hired by Deperdussin and joined the staff of Louis Bechereau, the designer of the various Deperdussin monocoque aircraft. By the summer of 1912, he had been promoted and sent to England to oversee the design and development of the British Deperdussin Company aircraft.^[1]

The Seagull was a tractor monoplane with a monocoque fuselage construction. Instead of using wires and turnbuckles to brace the wings, which was the common practice of the time, the Seagull's wings were braced with a truss that traveled under the fuselage from wingtip to wingtip. The designers claimed that this arrangement was no heavier than the typical wire bracing and it offered better rigidity to the wings^[2]

The wings were covered in a fabric that was designed to contain any damage caused by bullet holes. The fabric was reinforced by bunches of strong threads run through the material at right angles to form squares. If damage was done to a square, the threads would prevent the damage from leaving the square.^[2]

Lateral control was achieved with wing warping and a movable rudder attached to the trailing edge of the vertical fin. A movable elevator attached to the trailing edge of the horizontal stabilizer was used for pitch control.

The landing gear consisted of a short, wide main float with two teardrop shaped floats attached to the tips of the wing truss. The tail float was aerodynamically shaped to provide lift to offset the weight of the float.^[2]

Operational history

The Seagull was developed as a competitor for an Admiralty requirement for a reconnaissance seaplane. The Admiralty ordered two, but the poor performance of the prototype led to the cancellation of the order. This, combined with the War Office's ban on monoplanes, spelled the end for the further development of the Seagull.^[3]

Specifications (Seagull)

imp|genhide=|crew=|capacity=|length m=8.4|length ft=|length in=|length note=|span m=14|span ft=|span in=|span note=|upper span m=|upper span ft=|upper span in=|upper span note=|mid span m=|mid span ft=|mid span in=|mid span note=|lower span m=|lower span ft=|lower span in=|lower span note=|swept m=|swept ft=|swept in=|swept note=|dia m=|dia ft=|dia in=|dia note=|width m=|width ft=|width in=|width note=|height m=|height ft=|height in=|height note=|wing area sqm=|wing area sqft=330|wing area note=|swept area sqm=|swept area sqft=|swept area note=|volume m3=|volume ft3=|volume note=|aspect ratio=|airfoil=|empty weight kg=|empty weight lb=|empty weight note=|gross weight kg=|gross weight lb=|gross weight note=|max takeoff weight kg=|max takeoff weight lb=|max takeoff weight note=|fuel capacity=|lift kg=|lift lb=|lift note=|more general=|eng1 number=1|eng1 name=Anzani 10-cylinder|eng1 type=air cooled radial|eng1 kw=|eng1 hp=100|eng1 shp=|eng1 kn=|eng1 lbf=|eng1 note=|power original=|thrust original=|eng1 kn-ab=|eng1 lbf-ab=|eng2 number=|eng2 name=|eng2 type=|eng2 kw=|eng2 hp=|eng2 shp=|eng2 kn=|eng2 lbf=|eng2 note=|eng2 kn-ab=|eng2 lbf-ab=|eng3 number=|eng3 name=|eng3 type=|eng3 kw=|eng3 hp=|eng3 shp=|eng3 kn=|eng3 lbf=|eng3 note=|eng3 kn-ab=|eng3 lbf-ab=|more power=|prop blade number=|prop name=|prop dia m=|prop dia ft=|prop dia in=|prop dia note=|rot number=|rot dia m=|rot dia ft=|rot dia in=|rot area sqm=|rot area sqft=|rot area note=|perfhide=|max speed kmh=|max speed mph=63|max speed kts=|max speed note=|max speed mach=|cruise speed kmh=|cruise speed mph=|cruise speed kts=|cruise speed note=|stall speed kmh=|stall speed mph=|stall speed kts=|stall speed note=|never exceed speed kmh=|never exceed speed mph=|never exceed speed kts=|never exceed speed note=|minimum control speed kmh=|minimum control speed mph=|minimum control speed kts=|minimum control speed note=|range km=|range miles=|range nmi=|range note=|combat range km=|combat range miles=|combat range nmi=|combat range note=|ferry range km=|ferry range miles=|ferry range nmi=|ferry range note=|endurance=|ceiling m=|ceiling ft=|ceiling note=|g limits=|roll rate=|glide ratio=|climb rate ms=|climb rate ftmin=|climb rate note=|time to altitude=|sink rate ms=|sink rate ftmin=|sink rate note=|lift to drag=|wing loading kg/m2=|wing loading lb/sqft=|wing loading note=|disk loading kg/m2=|disk loading lb/sqft=|disk loading note=|fuel consumption kg/km=|fuel consumption lb/mi=|power/mass=|thrust/weight=|more performance=|armament=|guns=|bombs=|rockets=|missiles=|hardpoints=|hardpoint capacity=|hardpoint rockets=|hardpoint missiles=|hardpoint bombs=|hardpoint other=|avionics=}}

Design and development

Operational history

Specifications (Seagull)

See also

References