American passenger transport aircraft of the World War II era From Wikipedia, the free encyclopedia
The Lockheed Model 18 Lodestar is an American passenger transport aircraft of the World War II era, developed as part of the Model 10 Electra family, specifically from the Lockheed Model 14 Super Electra.
Quick Facts Model 18 Lodestar C-56 / C-57 / C-60 / R5O, General information ...
Model 18 Lodestar C-56 / C-57 / C-60 / R5O
Lockheed Lodestar flying skydivers at Goderich, 1977
Sales of the 10–14 passenger Lockheed Model 14 Super Electra, which first flew in 1937, had proved disappointing, despite the aircraft's excellent performance, as it was more expensive to operate than the larger Douglas DC-3, already in widespread use.[2] In order to improve the type's economics, Lockheed decided to stretch the aircraft's fuselage by 5feet 6inches (1.68m), allowing an extra two rows of seats to be fitted.[3]
The prototype for the revised airliner, designated Model 18 by Lockheed, was converted from the fourth Model 14, one of a batch which had been returned to the manufacturer by Northwest Airlines after a series of crashes. The modified aircraft first flew in this form on 21 September 1939, another two prototypes being converted from Model 14s, with the first newly built Model 18 flying on 2 February 1940.[4]
A total of 625 Lodestars of all variants were built.
Lockheed LodestarLockheed Model 18 Lodestar over Houston, 1947 or 1948
The Lodestar received its Type certificate on 30 March 1940, allowing it to enter service with the first customer, Mid-Continent Airlines that month.[5] As hoped, the extra seats greatly improved the Model 18's economics, reducing its seat-mile costs to a similar level to that of the DC-3, while retaining superior performance. Despite this, sales to US domestic customers were relatively slow as most US airlines were already committed to the DC-3, with only 31 Lodestars going to US airlines.[6] Overseas sales were a little better, with the biggest airline customers being South African Airways (21), New Zealand National Airways Corporation (13), Trans-Canada Air Lines (12) and BOAC (9); another 29 were bought by the Royal Netherlands East Indies Army Air Force. Various Pratt & Whitney and Wright Cyclone powerplants were installed.
When the United States started to build up its military air strength in 1940–41, many American-operated Lodestars were impressed as the C-56. This was followed by the construction of many new-build Lodestars which were flown by the U.S. Army Air Forces as the C-60 and by the U.S. Navy and U.S. Marine Corps as the R5O. Lend-lease aircraft were used by the RNZAF as transports.
One was purchased in 1942 to serve as Brazilian President Getúlio Vargas' personal aircraft. This aircraft was specially designed for that purpose and had 11 seats.
Howard 250 Lodestar conversion fitted with tri-gear. At Opa Locka Airport near Miami in 1981
After the war many Lodestars were overhauled and returned to civilian service, mostly as executive transports such as Dallas Aero Service's DAS Dalaero conversion, Bill Lear's Learstar (produced by PacAero), and Howard Aero's Howard 250.[7][8] A few of the latter were converted to tricycle landing gear.
While the surviving New Zealand NZNAC aircraft were sold back overseas in 1951/52, six more were later imported and converted for aerial topdressing.
Navy version of the C-60 powered by 1,200hp (895kW) Wright R-1820-40 engines. Similar to the R5O-4 but had 14-seats; 38 aircraft built and three former NEIAF aircraft.[13]
R5O-6
Navy version of the C-60A for the US Marine Corps, equipped with 18 paratroop seats; 35 built.[13]
In January 1943, Lockheed Lodestar Mk.II EW986,[27] c/n 2154, in the service of the Royal Air Force, overshot and crashed 3km south of Heliopolis, Egypt. At least 12 crew members and passengers died in the crash.[27] A cause of the accident was not determined. Among those killed were Air Vice-Marshal Wilfred Ashton McClaughry, CB, DSO, MC, DFC and Lady Rosalinde Tedder née MacLardy, wife of Marshal of the Royal Air Force Arthur William Tedder, 1st Baron Tedder, GCB.[27]
In 1949, a Lockheed Lodestar in airline service in Australia crashed immediately after takeoff. All 21 occupants died in the crash or the ensuing conflagration. The cause of the accident was determined to be that the center of gravity was behind the rear limit. It is also likely the elevator trim tab was set for landing rather than takeoff.[28]
On 22 March 1958, Mike Todd's private plane Lucky Liz, named after his wife Elizabeth Taylor, crashed near Grants, New Mexico. The plane, a twin-engine Lockheed Lodestar, suffered engine failure while being flown overloaded, in icing conditions at too-high an altitude for the loading. The plane went out of control and crashed, killing all four on board.[citation needed]
On 4 September 1962, a Lockheed 18-56-24 Lodestar operated by the Ashland Oil and Refining Company crashed near Lake Milton, Ohio. The flight was in-route to Ashland Regional Airport (KDWU) from Buffalo Airport, NY. Eleven passengers and two crew-members were killed. Investigation determined the crash a result of a malfunction of the electric elevator trim tab, which caused the loss of the plane's right wing during flight.[30]
On 21 August 1983, a Lockheed L-18 LEARStar operated by Landry Aviation, Inc. crashed near Silvana, Washington. The flight was a planned parachute drop carrying two pilots and 22 parachutists. Nine parachutists and two crew-members were killed while 13 were able to parachute to safety after the pilots lost control and entered a vertical descent from 12,500 feet. Investigation determined the crash a result of a failure of the operator and pilot-in-command to assure proper load distribution during the parachute drop.[31]
c/n 18-2006 – L18-56 on static display at the Finnish Aviation Museum in Helsinki.[40] It was previously registered as OH-VKU, N9955F, N9965F, and F-ARTF.[41]
New Zealand
c/n 18-2020 – C-60 on static display at the Museum of Transport & Technology, Auckland. It was built for United Airlines in October 1940 and registered as NC25630. It was impressed into United States Army Air Forces with the serial number 42-53504. In September 1941 it was transferred to the Royal Air Force as AX756. Next, it was operated as G-AGCN by the British Overseas Airways Corporation in East Africa. After serving with the Spanish Air Force, it was sold back to the United States where it was registered as N9933F. Sold again to FieldAir in either 1957 or 1958 it was converted to an aerial topdresser and given the registration ZK-BVE. It was damaged in a wheels up landing in 1969.[42][43][44]
c/n 18-2152 – C-60 under restoration with the Gisborne Aviation Preservation Society in Gisborne. It was previously operated by the Royal Air Force as EW984 and Spanish Air Force. Sold to civilian ownership, it was first registered in the United States as N9930F in 1955. It was converted to an aerial topdresser by Fieldair in 1957 and registered as ZK-BUV. It was a gate guardian at Gisborne Airport from 1973 to 1998.[45][46][44]
Germano da Silva, Carlos Ari César (2008). "Serra da Cantareira". O rastro da bruxa: história da aviação comercial brasileira no século XX através dos seus acidentes 1928-1996 (in Portuguese) (2ed.). Porto Alegre: EDIPUCRS. pp.37–41. ISBN978-85-7430-760-2.
Germano da Silva, Carlos Ari César (2008). "Uma desgraça nunca vem só". O rastro da bruxa: história da aviação comercial brasileira no século XX através dos seus acidentes 1928-1996 (in Portuguese) (2ed.). Porto Alegre: EDIPUCRS. pp.49–53. ISBN978-85-7430-760-2.
Germano da Silva, Carlos Ari César (2008). "Alternativa derradeira". O rastro da bruxa: história da aviação comercial brasileira no século XX através dos seus acidentes 1928-1996 (in Portuguese) (2ed.). Porto Alegre: EDIPUCRS. pp.66–68. ISBN978-85-7430-760-2.
Germano da Silva, Carlos Ari César (2008). "Mais um Lodestar". O rastro da bruxa: história da aviação comercial brasileira no século XX através dos seus acidentes 1928-1996 (in Portuguese) (2ed.). Porto Alegre: EDIPUCRS. pp.69–72. ISBN978-85-7430-760-2.
"Lockheed Lodestar - N31G". 1940 Air Terminal Museum. Houston Aeronautical Heritage Society. Archived from the original on 1 February 2017. Retrieved 12 December 2016.
"FAA REGISTRY [N41CW]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 4 April 2017. Retrieved 4 April 2017.
"FAA REGISTRY [N60JT]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 20 December 2016. Retrieved 13 December 2016.
"FAA REGISTRY [N1940S]". Federal Aviation Administration. U.S. Department of Transportation. Archived from the original on 3 March 2017. Retrieved 3 March 2017.
Andrade, John. U.S. Military Aircraft Designations and Serial, since 1909. Hersham, Surrey, UK: Midland Counties Publications, 1979. ISBN0-904597-22-9.
Francillon, René J. (1982). Lockheed Aircraft since 1913. London: Putnam & Company. ISBN0-370-30329-6..
Stanaway, John C. Vega Ventura: The Operational Story of Lockheed's Lucky Star. Atglen, PA: Schiffer Publishing, 2000. ISBN0-7643-0087-3.
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