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Avro 504K Mk.II

For description of Type 504K MkII see Production Summary

For a description of the format and data included in Production Tables, see here.



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U.K. Built Type 504K Mk.IIs Delivered As Military

Production List Top Page Top 

Serial Range
C/n
Batch Qty
Conv.
Canc'd
Notes
U.K.
 Prototype built by A.V. Roe & Co. Ltd., Hamble, Hants, as a private venture in 1924 (but see note 1).
 J8029?      (1)    
Sweden
 3 aircraft supplied by A.V. Roe & Co. Ltd., Hamble, Hants, to the Swedish Navy Air Service (Svenska Flygvasende). Delivered 1924.
 8 - 10  R3/CL/16915, R3/CL/16949,    (3)    Redesignated Sk3 in 1926 and allocated new serials 074 - 076
   R3/CL/16932        
 
Total Production
 
(4)
 
 



UK Civil Registered Type 504K Mk.II Converted From Type 504N

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Original Military Serial
Initial Registration
Notes
 4 aircraft converted by A.V. Roe & Co. Ltd., Hamble, Hants, in 1936, from Military Type 504N. See Note 3.
 J8758  G-ADGB  To Zenith Airways, Camber.
 J9689  G-ADGC  To Zenith Airways, Camber.
 K1962  G-ADGM  To Aviation Commerce Ltd.
 H2962  G-ADGN  Originally a 504N converted from 504K. To Aviation Commerce Ltd.
Total Conversions   (4)



Non-U.K. Built Type 504K Mk.IIs Delivered As Military

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Serial Range
C/n
Batch Qty
Conv.
Canc'd
Notes
Mexico
 At least 30 aircraft ordered from the Talleres Nacionales de Construcciones Aeronáuticas (TNCA - National Aviation Workshops), Mexico City, Mexico, for the Mexican Air Force
 (Fuerza Aerea Mexicana). Deliverd 1924
     30      See Note 2.
 
Total Production
 30
 
 0
 



Non-UK Civil Registered Type 504K Mk.II

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Original Military Serial
Initial Registration
Notes
Mexico
 All the following aircraft are assumed to be conversions of the TNCA built Anáhuac, but actual provenance is unknown.
   XB-ACB  To G. Rentaria Mexico DF
   XB-ACC  To M. Saena Mexico DF
   XB-ACR  To Preston S. Tanner Mexico DF
   XB-ADG  To Miguel Monraz Guadalajara
   XB-AEL  To Alvaro Salazar (Indicated as Anahuac)
   XB-AEP  To E.Apellaniz & F. Juarez
   XB-AEQ  To Juan F. Azacarate
   XB-AFR  To Andrea Guardia
   XB-AFY  To J. William Morgan
   XB-AHL  To Angel Lojero
Sweden
Total   (1) 
 SE-ACC    Ex Swedish Navy Air Service. To Tage Wahrgren, Löberöd.
Total Conversions   (11)




Notes
  1. The original 504 Mk.II was a hybrid, featuring the fuselage af a Type 504K married to a Type 504N undercarriage and mainplanes and fitted with a 100 h.p. Gnome Monosoupape powerplant. George Jenks, in Aeromilitaria [2] speculates that the prototype 504 Mk.II may have become J8029. This was apparently a rebuild of 504K F9723 under Air Ministry Contract 667589/26, powered by a 100 h.p. Gnome Monosoupape and was on the charge of the Home Aircraft Depot Station Flight, Henlow, from October 1926 to March 1928.
     
  2. Known locally as the Avro Anáhuac. One photograph in [4] shows serial 13-A-105. One Anáhuac was donated to Guatemala on 15 June 1927, named Benito Juarez and another to Costa Rica on 18 July 1929, named Juan Santamaria.
     
  3. In 1935, four late-production Type 504N s were re-engined with 130 h.p. Clerget rotaries for joy-riding, thus making them the equivalent of the 504K Mk.II of ten years earlier, but these were distinguished by the later Frise ailerons and under-wing fuel tanks of the Type 504N .

Production References
  1. Avro Aircraft Since 1908, A.J. Jackson (Putnam, 1965 & 1990)
  2. Aeromilitaria, 1995/4 (Air-Britain Publications)
  3. Central American And Caribbean Air Forces, Daniel P Hagedorn (Air-Britain (Historians), 1993)
  4. http://www.avrosys.nu/aircraft/Skol/403sk3/403Sk3.htm
  5. Avro 504 in Sweden at http://www.svfplhist.com/

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