Douglas C-1 - Aeroplane - avia.wikisort.org

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The Douglas C-1 was a cargo/transport aircraft produced by the Douglas Aircraft Corporation for the United States Army Air Service starting in 1925.

C-1

Role	Transport Type of aircraft
National origin	United States
Manufacturer	Douglas Aircraft Company
First flight	2 May 1925
Introduction	1925
Primary user	United States Army Air Service
Number built	26

Design and development

Douglas received an order for nine single-engined transport aircraft in 1925, the first aircraft flying from Douglas's Santa Monica, California factory on 2 May 1925.[1] The C-1 was the first aircraft assigned in the new C- category. The aircraft design was based on several earlier and similar designs developed by Douglas in the early 1920s (including the Douglas World Cruisers used in the first round-the-world flight in 1924). The C-1 featured an enclosed passenger compartment capable of carrying six passengers or about 2,500 lb (1,100 kg) of cargo. A trap door was placed in the lower fuselage to allow large and/or heavy cargo (particularly aircraft engines) to be lifted directly into the cargo compartment. An auxiliary door for passengers and light cargo was included on the right side of the center fuselage.

Operational history

The C-1 biplane was powered by the Liberty L-12 engine and carried a crew of two in an open cockpit. A C-1 was flown in the 1926 Ford National Reliability Air Tour.[2]

Seventeen additional aircraft were ordered in 1926 and 1927 for the United States Army Air Corps as C-1Cs and were slightly larger than the original C-1s.

Several C-1s were used in test programs—as an engine testbed, as a prototype air ambulance and as refueling aircraft for early air-to-air refueling experiments. Two of these aircraft were used as "tankers" in the 1929 record endurance flight of the Fokker C-2 Question Mark.

Variants

C-1: Single-engined cargo/passenger transport aircraft, powered by a 435 hp (324 kW) Liberty V-1650-1 piston engine, accommodation for two crew and six to eight passengers.
C-1A: One C-1 used to test a variety of engines and cowlings, it was also used for number of experiments with ski landing gear.
C-1C: Single-engined cargo/passenger transport aircraft, fitted with a metal cabin floor, modified landing gear, it had a higher gross landing weight and increased dimensions, plus a new balanced rudder; 17 built

Operators

United States

United States Army Air Service
United States Army Air Corps

Specifications (Douglas C-1)

Data from McDonnell Douglas aircraft since 1920 : Volume I[3]

General characteristics

Crew: 2
Capacity: 6 or 8 pax / 2,500 lb (1,100 kg) payload
Length: 35 ft 4 in (10.77 m)
Wingspan: 56 ft 7 in (17.25 m)
Height: 14 ft (4.3 m)
Wing area: 805 sq ft (74.8 m²)
Airfoil: Clark Y [4]
Empty weight: 3,836 lb (1,740 kg)
Gross weight: 6,443 lb (2,922 kg)
Powerplant: 1 × Liberty V-1650-1 V-12 water-cooled piston engine, 435 hp (324 kW)
Propellers: 2-bladed fixed-pitch propeller

Performance

Maximum speed: 116 mph (187 km/h, 101 kn) at sea level
Cruise speed: 85 mph (137 km/h, 74 kn)
Range: 385 mi (620 km, 335 nmi)
Service ceiling: 14,850 ft (4,530 m)
Rate of climb: 645 ft/min (3.28 m/s)
Wing loading: 8 lb/sq ft (39 kg/m²)
Power/mass: 0.0676 hp/lb (0.1111 kW/kg)

References

Notes

Francillon 1979, p. 96.
Forden 2003, p. 24.
Francillon, René J. (1988). McDonnell Douglas aircraft since 1920 : Volume I. London: Naval Institute Press. pp. 82–84. ISBN 0870214284.
Lednicer, David. "The Incomplete Guide to Airfoil Usage". m-selig.ae.illinois.edu. Retrieved 16 April 2019.

Bibliography

Forden, Lesley. The Ford Air Tours: 1925-1931. New Brighton Minnesota: Aviation Foundation of America, 2003, First edition 1972. No ISBN.
Francillon, René J. McDonnell Douglas Aircraft since 1920. London: Putnam, 1979. ISBN 0-370-00050-1.

External links

Wikimedia Commons has media related to Douglas C-1.

The National Museum of the United States Air Force has articles on the C-1, C-1A, C-1B (never built), and C-1C, and also on the use of the C-1 as an air ambulance.

v t e Douglas military aircraft
Fighters	XFD XP-48 P-70 F3D Skyknight F4D Skyray F5D Skylancer XF6D Missileer
Ground attack	XA-2 A-20 A-24 A-26 Invader A-33 A-1 Skyraider A-3 Skywarrior A-4 Skyhawk/A-4AR Fightinghawk/A-4SU Super Skyhawk AC-47 "Spooky" DT T2D XT3D TBD Devastator SBD Dauntless BD XBTD Destroyer XTB2D Skypirate AD Skyraider XA2D Skyshark A3D Skywarrior A4D Skyhawk
Bombers	YB-7 YB-11 B-18 Bolo XB-19 XB-22 B-23 Dragon B-26 Invader XB-31 XB-42 Mixmaster XB-43 Jetmaster B-66 Destroyer Model 423 Model 1211-J DB-1 DB-2 DB-7 DB-8 DB-19 DB-73 Boston I/II/III/IV/V Digby I Havoc I/II DXD1
Observation	O-2 OD O2D O-31 O-35 O-38 O-43 YO-44 O-46 O-53 YOA-5
Patrol	PD P2D P3D
Reconnaissance	F-3
Transports	C-1 C-21 C-32 C-33 YC-34 C-38 C-39 C-41 C-41A C-42 C-47 Skytrain (Dakota I/III/IV) C-48 C-49 C-50 C-51 C-52 C-53 Skytrooper C-54 Skymaster C-58 UC-67 C-68 C-74 Globemaster C-84 C-110 XC-112/YC-112 XC-114 YC-116 C-117 C-117D C-118 C-124 Globemaster II YC-129 C-132 C-133 Cargomaster C-9 (Nightingale/Skytrain II) C-24 RD R2D R3D R4D-1/-3/-5/-6/-7 R4D-8 R5D JD R6D CC-129 LXD1 PD.808 Skymaster I
Gliders	XCG-17
Training aircraft	BT-1 BT-2 XT-30
Experimental	World Cruiser D-558-1 Skystreak D-558-2 Skyrocket X-3 Stiletto

v t e United States military transport aircraft designations, Army/Air Force and Tri-Service systems
Army/Air Force sequence (1925-1962)	C-1 C-2 C-3 C-4 C-5 C-6 C-7 C-8 C-9 C-10 C-11 C-12 C-13¹ C-14 C-15 C-16 C-17 C-18 C-19 C-20 C-21 C-22 C-23 C-24 C-25 C-26 C-27 C-28 C-29 C-30 C-31 C-32 C-33 C-34 C-35 C-36 C-37 C-38 C-39 C-40 C-41 A C-42 C-43 C-44 C-45 C-46 C-47 F T AC-47 C-48 C-49 C-50 C-51 C-52 C-53 C-54 C-55 C-56 C-57 C-58 C-59 C-60 C-61 C-62 C-63 C-64 C-65 C-66 C-67 C-68 C-69 C-70 B C-71 C-72 C-73 C-74 C-75 C-76 C-77 B-D C-78 C-79 C-80 C-81 C-82 C-83 A B C-84 C-85 C-86 C-87 C-88 C-89 C-90 C-91 C-92 C-93 C-94 C-95 C-96 C-97 KC-97 C-98 C-99 C-100 C-101 C-102 C-103 C-104 C-105 C-106 C-107 C-108 C-109 C-110 C-111 C-112 C-113 C-114 C-115 C-116 C-117 D C-118 C-119 AC-119 C-120 C-121 F C-122 C-123 A C-124 C-125 C-126 C-127² C-127 (I) C-127 (II) C-128 C-129 C-130 J AC-130 DC-130 EC-130/H HC-130 KC-130 LC-130 MC-130 WC-130 C-131 C-132 C-133 C-134 C-135 KC-135 C-136 C-137² YC-137 (I) YC-137 (II) C-137 C-138¹ C-139¹ C-140 C-141 C-142
Tri-service sequence (1962-present)	C-1 C-2 C-3 C-4 C-5 C-6 C-7² C-7/B RC-7 C-8 C-9 C-10² C-10 KC-10 C-11 C-12 RC-12 C-13¹ C-14 C-15 C-16¹ C-17 C-18 C-19 C-20A-D F-H C-21 C-22 C-23 C-24 C-25 C-26 C-27 J C-28 C-29 C-30¹ C-31 C-32 C-33 C-34¹ C-35 C-36³ C-37A B C-38 C-39¹ C-40 C-41 C-42¹ C-43¹ C-44¹ C-45 C-46
Revived original sequence (2005-present)	C-143 C-144 C-145 C-146 C-147
Non-sequential designations	C-767 C-880
Related designations	CT-39 CT-43 CV-2 CV-7
¹ Not assigned • ² Assigned to multiple types • ³ Unconfirmed

На других языках

[de] Douglas C-1

Die Douglas C-1 war ein Transportflugzeug des US-amerikanischen Herstellers Douglas Aircraft Company aus den 1920er Jahren. Die C-1 war das erste Flugzeug in dem von 1925 bis 1962 gültigen Bezeichnungssystem für militärische Transportflugzeuge. Die mit der XC-142 eigentlich beendete Sequenz wird jedoch seit 2005 weiter fortgesetzt.

- [en] Douglas C-1

[fr] Douglas C-1

Le Douglas C-1 est un appareil de transport de troupes (6 à 8) et de fret produit par la Douglas Aircraft Company pour l'USAAC à partir de 1925 et issu des Douglas World Cruiser et de la série des O-2/M.

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