Northrop C-19 Alpha
{{short description|American transport aircraft}}
{{Infobox aircraft
|name = YC-19 Alpha
|image = Northrop Alpha (Y1C-19).jpg
|caption = Northrop Y1C-19
|type = Transport
|manufacturer = Northrop
|designer = John K. Northrop
|first_flight = 1930 (Northrop Alpha)
|introduction = 1931
|retired =
|status =
|primary_user = US Army Air Corps
|more_users =
|produced =
|unit cost =
|developed_from = Northrop Alpha
|variants =
|developed_into =
}}
The Northrop C-19 Alpha was a series of three aircraft purchased from Northrop by the US Army Air Corps in 1931. They were slightly modified versions of the civil Northrop Alpha Type 2.
Design and development
The YC-19 aircraft were Northrop Alpha 4s supplied for evaluation to the USAAC. No production orders were given. The major difference between the C-19s and the Alphas was that the civilian version carried a pilot and six passengers while the Army version carried a pilot and four passengers.
Operational history
One aircraft, the last of the three purchased, crashed between Richmond and Petersburg, Virginia on Sunday, March 19, 1933, killing its pilot and two passengers.{{Citation needed|date=September 2007}} The other aircraft were used for several more years until being sent to training schools as subjects for maintenance and repair classes.
Variants
;YC-19: one aircraft, previously an Alpha 4, serial number 31-516"United States Military Aircraft Since 1909" by F. G. Swanborough & Peter M. Bowers (Putnam New York, {{ISBN|0-85177-816-X}}) 1964, 596 pp.
;Y1C-19: two aircraft, serial numbers 31–517 to 31-518, Pratt & Whitney R-1340-11 engine"U.S. Army Aircraft 1908-1946" by James C. Fahey, 1946, 64pp.
Operators
- {{USA}}: US Army Air Corps
Specifications (Alpha landplane)
{{Aircraft specs
|ref=Janes all the Worlds Aircraft 1931{{cite book |title=Jane's All the World's Aircraft 1931 |editor1-last=Grey |editor1-first=C.G. |year=1931 |publisher=Sampson Low, Marston & company, ltd |location=London |page=303c}}
|prime units?=imp
|crew=1
|capacity=6 passengers
|length ft=28
|length in=4.5
|length note=
|span ft=41
|span in=10
|span note=
|height ft=9
|height in=0
|height note=
|wing area sqft=295
|wing area note=
|aspect ratio=
|airfoil=Clark Y{{cite web |last1=Lednicer |first1=David |title=The Incomplete Guide to Airfoil Usage |url=https://m-selig.ae.illinois.edu/ads/aircraft.html |website=m-selig.ae.illinois.edu |access-date=16 April 2019}}
|empty weight lb=2660
|empty weight note=
::::{{cvt|2900|lb|0}} Seaplane
|gross weight lb=4500
|gross weight note=
::::{{cvt|4700|lb|0}} Seaplane
|max takeoff weight lb=
|max takeoff weight note=
|fuel capacity=
|more general=
|eng1 number=1
|eng1 name=Pratt & Whitney R-1340 Wasp
|eng1 type=9-cylinder air-cooled radial piston engine
|eng1 hp=420
|eng1 note=
|prop blade number=2
|prop name=fixed-pitch propeller
|prop dia ft=
|prop dia in=
|prop dia note=
|max speed mph=170
|max speed note=
::::{{cvt|165|mph|kn km/h|0}} Seaplane
|cruise speed mph=145
|cruise speed note=
::::{{cvt|140|mph|kn km/h|0}} Seaplane
|stall speed mph=60
|stall speed note=
|never exceed speed mph=
|never exceed speed note=
|range miles=650
|range note=
|combat range miles=
|combat range note=
|ferry range miles=
|ferry range note=
|endurance=
|ceiling ft=19300
|ceiling note=
::::{{cvt|18000|ft|0}} Seaplane
- Absolute ceiling: {{cvt|21100|ft|0}}
::::{{cvt|20000|ft|0}} Seaplane
|climb rate ftmin=1400
|climb rate note=at sea level
::::{{cvt|650|ft/min|0}} at {{cvt|10000|ft|0}}
:::::{{cvt|1250|mph|kn km/h|0}} Seaplane at sea level
:::::{{cvt|550|ft/min|0}} Seaplane at {{cvt|10000|ft|0}}
|time to altitude=
|lift to drag=
|wing loading lb/sqft=15.25
|wing loading note=
::::{{cvt|15.9|lb/sqft|0}} Seaplane
|fuel consumption lb/mi=
|power/mass={{cvt|0.0935|hp/lb}}
::::{{cvt|0.0893|hp/lb}} Seaplane
|more performance=
|avionics=
}}
See also
{{aircontent|
|related=
|similar aircraft=
|lists=
|see also=
}}
References
{{commons category|Northrop C-19 Alpha}}
{{reflist}}
{{Northrop aircraft}}
{{USAF transports}}