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    This page documents a history of a specific aircraft. The details provided vary from aircraft to aircraft and are dependent on the research and amount of data uploaded to the Aerial Visuals database.

    Airframe Family: Beech 18 Expeditor / AT-7 / AT-11 / C-45 / JRB / SNB
    Latest Model:C18S
    Last Military Serial:42-2509 USAAF
    Construction Number:4185
    Last Civil Registration:N79MB
    Compressed ID:Beech C18S sn 42-2509 USAAF cn 4185...
    Latest Owner or Location:Charles M. Somers, Hillsboro, OR

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    Dates

    Event

    November 1942

    Constructed as an AT-7.

    Circa 1942

    Taken on Strength/Charge with the United States Army Air Force with s/n 42-2509.

    Taken on Strength/Charge with the United States Navy with BuNo FR880.
    Transferred under Lend Lease. Initially incorrectly marked as FT880.

    From 1944 to 1945

    Transferred to NAS Anacostia, Washington, DC.

    1945

    Transferred to NAS Patuxent River, MD.

    1946

    Taken on Strength/Charge with the United States Army Air Force with s/n 42-2509 as a AT-7.

    22 July 1946

    To Civil Aeronautics Administration, Washington DC with new c/r NC20.

    October 1946

    Converted to a C18S.
    The work was carried out my Temco.

    From 1948 to 1954

    To Civil Aeronautics Administration, Washington, DC with new c/r N20.

    25 February 1954

    To US Department of Agriculture with new c/r N20D.

    19 March 1956

    Certificate of airworthiness for N79MB (C18S, 4185) issued.

    28 December 1959

    To Pacific Coast Engine (and) Parts Inc keeping c/r N20D.

    25 March 1961

    To Royal W. Kelsey/Eureka Airplane Club Inc, San Jose CA keeping c/r N20D.

    From 14 November 1964 to 1972

    To Opal P. Averitt, Ontario CA keeping c/r N20D.

    15 April 1972

    Spotted at Chino, CA.

    From 30 May 1972 to 1979

    To James E. Shepherd, El Monte CA keeping c/r N20D.

    19 April 1979

    To Jim Goodwin keeping c/r N20D.

    From Unknown to 1988

    To Custom Welding (and) Fabricating Inc, Mooringsport LA keeping c/r N20D.

    From 20 December 1988 to 1995

    To Jerry C. Janes (and) Associates Inc, Rockford IL keeping c/r N20D.

    26 May 1999

    To 140 Cessna Ltd/Mike Brown, Carson City, NV with new c/r N79MB.

    30 May 2015


    Photographer: Mike Henniger
    Notes: Photographed at Ione Show and Shine at the Eagles Nest air strip.

    30 May 2015


    Photographer: Mike Henniger
    Notes: Photographed at Ione Show and Shine at the Eagles Nest air strip.

    30 May 2015


    Photographer: Mike Henniger
    Notes: Photographed at Ione Show and Shine at the Eagles Nest air strip.

    30 May 2015


    Photographer: Mike Henniger
    Notes: Photographed at Ione Show and Shine at the Eagles Nest air strip.

    Contracted to Airmotive Specialties/David Teeters, Salinas Municipal Airport (SNS), Salinas, CA for work on the airframe.
    View the Location Dossier

    16 April 2016


    Photographer: Mike Henniger
    Notes: Photographed at Airmotive Specialties in Salinas, CA, while in for an annual inspection.

    1 January 2019

    Certificate of airworthiness for N79MB (C18S, 4185) issued.

    6 February 2025

    To Charles M. Somers, Hillsboro, OR keeping c/r N79MB.


    Credits
    Data for airframe dossiers come from various sources. The following were used to compile this dossier...

    Print Sources
    Beech 18: A Civil and Military History by R. K. Parmerter

    Internet Sources
    Aviation History Site by Geoff Goodall
    Federal Aviation Administration in the United States of America

    Individual Contributors
    Mike Henniger

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