Lockheed Altair: Difference between revisions
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MilborneOne (talk | contribs) Presume it was the American version of the book that was used which is 1987 not 1978 |
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==Development and design== |
==Development and design== |
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Lockheed designed an alternative wing fitted with a retractable undercarriage for the Lockheed Sirius as a result of a request from [[Charles Lindbergh]], although Lindbergh in the end chose to buy a standard Sirius. The first Altair, converted from a Sirius, flew in September 1930.<ref name="Francillon 78 p101">Francillon |
Lockheed designed an alternative wing fitted with a retractable undercarriage for the Lockheed Sirius as a result of a request from [[Charles Lindbergh]], although Lindbergh in the end chose to buy a standard Sirius. The first Altair, converted from a Sirius, flew in September 1930.<ref name="Francillon 78 p101">Francillon 1987, p. 101.</ref> Like the Sirius, the Altair was a single-engined, low-winged monoplane of wooden construction. The undercarriage, which was operated by use of a hand crank, retracted inwards. |
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Four Altairs following the prototype were converted Siriuses, with another six Altairs built from scratch: three by Lockheed, two by the [[Detroit Aircraft Corporation]], and one by [[AiRover]]. The AiRover Altair, dubbed ''The Flying Testbed'', was powered by a [[Menasco Motors Company|Menasco]] Unitwin engine, which used two engines to drive a single shaft.<ref name="Pearce">{{cite web|last1=Pearce|first1=William|title=Menasco 2-544 Unitwin Aircraft Engine|url=https://oldmachinepress.com/2013/12/23/menasco-2-544-unitwin/|website=oldmachinepress.com|accessdate=25 May 2016}}</ref> The Unitwin was used in the [[Vega Starliner]], which never went into production. |
Four Altairs following the prototype were converted Siriuses, with another six Altairs built from scratch: three by Lockheed, two by the [[Detroit Aircraft Corporation]], and one by [[AiRover]]. The AiRover Altair, dubbed ''The Flying Testbed'', was powered by a [[Menasco Motors Company|Menasco]] Unitwin engine, which used two engines to drive a single shaft.<ref name="Pearce">{{cite web|last1=Pearce|first1=William|title=Menasco 2-544 Unitwin Aircraft Engine|url=https://oldmachinepress.com/2013/12/23/menasco-2-544-unitwin/|website=oldmachinepress.com|accessdate=25 May 2016}}</ref> The Unitwin was used in the [[Vega Starliner]], which never went into production. |
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The prototype Altair was purchased by the [[United States Army Air Corps]] and designated '''Y1C-25''', with a second Altair, fitted with a metal construction fuselage was also purchased by the Army as the '''Y1C-23''' and used as a staff transport, as was a single similar aircraft operated by the [[United States Navy|US Navy]] as the '''XRO-1'''.<ref name="Francillon 78 p101-106">Francillon 1978, pp. 101–106.</ref> |
The prototype Altair was purchased by the [[United States Army Air Corps]] and designated '''Y1C-25''', with a second Altair, fitted with a metal construction fuselage was also purchased by the Army as the '''Y1C-23''' and used as a staff transport, as was a single similar aircraft operated by the [[United States Navy|US Navy]] as the '''XRO-1'''.<ref name="Francillon 78 p101-106">Francillon 1978, pp. 101–106.</ref> |
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Altairs were used to carry out a number of record-breaking long-range flights. One aircraft, named ''[[Lady Southern Cross]]'' was used by Australian [[aviator]] [[Charles Kingsford Smith]] to carry out the first flight between Australia and the United States between October 20 and November 4, 1934. Kingsford Smith was killed in the early hours of November 8, 1935, flying ''Lady Southern Cross'' during an attempt on the record for flying between England and Australia.<ref name="Francillon 78 p103-4">Francillon |
Altairs were used to carry out a number of record-breaking long-range flights. One aircraft, named ''[[Lady Southern Cross]]'' was used by Australian [[aviator]] [[Charles Kingsford Smith]] to carry out the first flight between Australia and the United States between October 20 and November 4, 1934. Kingsford Smith was killed in the early hours of November 8, 1935, flying ''Lady Southern Cross'' during an attempt on the record for flying between England and Australia.<ref name="Francillon 78 p103-4">Francillon 1987, pp. 103–104.</ref> |
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Two Altairs were used by the Japanese newspaper ''[[Mainichi Shimbun]]'' as high-speed passenger and cargo aircraft, one remaining in use until 1944.<ref name="Francillon 78 p105-6">Francillon |
Two Altairs were used by the Japanese newspaper ''[[Mainichi Shimbun]]'' as high-speed passenger and cargo aircraft, one remaining in use until 1944.<ref name="Francillon 78 p105-6">Francillon 1987, pp. 105–106.</ref> |
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==Variants== |
==Variants== |
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|plane or copter?=plane |
|plane or copter?=plane |
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|jet or prop?=prop |
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|ref=Lockheed Aircraft since 1913<ref name="Francillon 78 p106">Francillon |
|ref=Lockheed Aircraft since 1913<ref name="Francillon 78 p106">Francillon 1987, p. 106.</ref> |
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===Bibliography=== |
===Bibliography=== |
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* Francillon, René J. ''Lockheed Aircraft since 1913''. London: Putnam, 1982. ISBN 0-370-30329-6. |
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* Francillon, René J. ''Lockheed Aircraft since 1913''. Annapolis, Maryland: Naval Institute Press, 1987. ISBN 0-87021-897-2. |
* Francillon, René J. ''Lockheed Aircraft since 1913''. Annapolis, Maryland: Naval Institute Press, 1987. ISBN 0-87021-897-2. |
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Revision as of 09:12, 30 April 2017
Altair | |
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File:Lockheed Altair.2.jpg | |
The Lady Southern Cross, converted from an older Sirius and bearing her pre-delivery name ANZAC. | |
Role | Civilian sport |
National origin | United States of America |
Manufacturer | Lockheed Aircraft Limited |
First flight | September 1930 |
Number built | 11 |
Developed from | Lockheed Sirius |
The Lockheed Altair was a single-engined sport aircraft of the 1930s. It was a development of the Lockheed Sirius with a retractable undercarriage, and was the first Lockheed aircraft and one of the first aircraft designs with a fully retractable undercarriage.
Development and design
Lockheed designed an alternative wing fitted with a retractable undercarriage for the Lockheed Sirius as a result of a request from Charles Lindbergh, although Lindbergh in the end chose to buy a standard Sirius. The first Altair, converted from a Sirius, flew in September 1930.[1] Like the Sirius, the Altair was a single-engined, low-winged monoplane of wooden construction. The undercarriage, which was operated by use of a hand crank, retracted inwards.
Four Altairs following the prototype were converted Siriuses, with another six Altairs built from scratch: three by Lockheed, two by the Detroit Aircraft Corporation, and one by AiRover. The AiRover Altair, dubbed The Flying Testbed, was powered by a Menasco Unitwin engine, which used two engines to drive a single shaft.[2] The Unitwin was used in the Vega Starliner, which never went into production.
Operational history
The prototype Altair was purchased by the United States Army Air Corps and designated Y1C-25, with a second Altair, fitted with a metal construction fuselage was also purchased by the Army as the Y1C-23 and used as a staff transport, as was a single similar aircraft operated by the US Navy as the XRO-1.[3]
Altairs were used to carry out a number of record-breaking long-range flights. One aircraft, named Lady Southern Cross was used by Australian aviator Charles Kingsford Smith to carry out the first flight between Australia and the United States between October 20 and November 4, 1934. Kingsford Smith was killed in the early hours of November 8, 1935, flying Lady Southern Cross during an attempt on the record for flying between England and Australia.[4]
Two Altairs were used by the Japanese newspaper Mainichi Shimbun as high-speed passenger and cargo aircraft, one remaining in use until 1944.[5]
Variants
- 8D Altair
- Two-seat long-range high-performance sports aircraft, fitted with a retractable undercarriage, powered by a 500 hp (373 kW) Pratt & Whitney SR-1340E Wasp radial piston engine; One prototype, four converted Sirius aircraft, six production aircraft.
- Sirius 8 Special
- One aircraft built for the Australian aviator Charles Kingsford Smith, it was converted into an Altair 8D aircraft, later named the Lady Southern Cross.
- DL-2A
- Two Altair 8Ds built by the Detroit Aircraft Corporation.
- Y1C-23
- The second Altair 8D was purchased by the US Army Air Corps, it was used as a staff transport aircraft. Later redesignated C-23.
- Y1C-25
- The Altair 8D prototype was purchased by the US Army Air Corps, powered by a 450 hp (336 kW) Pratt & Whitney R-1340-17 Wasp radial piston engine.
- XRO-1
- One Altair DL-2A acquired by the U.S. Navy, it was used as staff transport aircraft.
Operators
Specifications (Y-1-23)
Data from Lockheed Aircraft since 1913[6]
General characteristics
- Crew: 1
Performance
- Climb to 7,000 ft (2,140 m): 9.4 min
See also
Related development
Related lists
- List of Lockheed aircraft
- List of military aircraft of the United States
- List of military aircraft of the United States (naval)
References
Notes
Bibliography
- Francillon, René J. Lockheed Aircraft since 1913. Annapolis, Maryland: Naval Institute Press, 1987. ISBN 0-87021-897-2.