Naval Aircraft Factory XOSN
| {{Infobox Aircraft Begin
|name =XOSN-1 |image = Ray_Wagner_Collection_Photo_(15466612604).jpg |caption = }}{{Infobox Aircraft Type |type =Observation floatplane |manufacturer =Naval Aircraft Factory |designer = |first flight = May 1938 |introduced = |retired = |primary user =United States Navy |more users = |produced = |number built = 1 |unit cost = |developed from= |variants with their own articles = |developed into = }} |
The Naval Aircraft Factory XOSN was an American biplane observation floatplane developed by the Naval Aircraft Factory for the United States Navy during the late 1930s.
Design and development
In 1936, the Navy asked all interested aircraft manufacturers to submit bids for a new observation-scout aircraft, capable of operating from either water or land, but primarily intended for service on battleships and cruisers for gunnery spotting.{{cite book |last1=Adcock |first1=Al |title=OS2U Kingfisher in action |series=Aircraft In Action |volume=119 |year=1991 |publisher=Squadron/Signal Publications |location=Carrollton, TX |isbn=0-89747-270-5|pages=4}}
Three companies – Stearman Aircraft, Vought and the Naval Aircraft Factory - submitted aircraft to meet the requirements. The Naval Aircraft Factory design, assigned the designation XOSN-1,{{cite book |last1=Johnson |first1=E.R. |title=United States Naval Aviation 1919-1941. Aircraft, Airships and Ships Between the Wars |year=2011 |publisher=McFarland & Company, Inc. |location=Jefferson, North Carolina, and London |isbn=978-0-7864-4550-9|pages=134}} was a two-seat biplane of mixed metal and fabric construction, with the pilot and observer seated in tandem in a fully enclosed cockpit. Innovations included automatic leading-edge slats on the upper wing and an I-strut bracing system that eliminated the need for interplane bracing wires. Provisions were made for either float or wheeled landing gear of a conventional taildragger type.
Operational history
The XOSN-1 was delivered for official trials in May 1938 and evaluated along with the other entrants. After Vought's monoplane XOS2U-1 was selected for production, the XOSN-1 was assigned to the Naval Academy at Annapolis where it was used as a trainer until mid-1944.
Operators
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Specifications (XOSN-1)
{{Aircraft specs
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|crew=2 (pilot and observer)
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|wing area sqft=376
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|empty weight lb=3771
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|gross weight lb=5516
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|eng1 number=1
|eng1 name=Pratt & Whitney R-1340
|eng1 type=radial engine
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|eng1 hp=550
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|max speed mph=160
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|max speed note=at {{convert|6000|ft}}
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|range miles=925
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|ceiling ft=14900
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|guns=1× fixed, forward firing .30 in machine gun; 1× flexibly mounted .30 in machine gun in the rear cockpit
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See also
{{Portal|Aviation}}
{{Aircontent
|related=
|similar aircraft=
- Beriev Be-2
- Berliner-Joyce OJ
- Curtiss SOC Seagull
- Fairey Seafox
- Mitsubishi F1M
- Stearman XOSS
- Vought O5U
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}}
References
;Citations
{{reflist}}
{{Naval Aircraft Factory aircraft}}
{{USN observation aircraft}}
Category:1930s United States military reconnaissance aircraft
Category:Single-engined tractor aircraft
Category:Aircraft first flown in 1938