Hispano-Suiza piston aero-engines

Letter system The Service technique de l'aéronautique (STAé) used a common designation system for the vast majority of engines produced in France, which signified the major attributes of the particular engines:- • Manufacturer - In this case Hispano-Suiza • 12 - the number of cylinders in any configuration (V, straight, W, horizontally opposed, radial, etc.). • Y - the family letter in capitals (note: in at least two instances the family designator consisted of two letters in capitals e.g. 14AA and 14AB), advancing alphabetically. (note:Hispano-Suiza avoided W to avoid confusion with W / Broad-arrow engines) • a – sub variant indicator, (which could also indicate the rotation of the engine, where otherwise identical engines with opposite hand rotation were built, e.g. 12Ndr anti-clockwise and 12Nfr clockwise). • r – attribute indicators, denoting various attributes that the engine might have, (r = reduction gearing, i = fuel injection, s = supercharged, etc.) • 1 - sub-sub variants were denoted by using a number after the letters, (e.g. 12Xhrs and 12Xhrs1), usually indicating differences in ancillary equipment. Thus the 12Xgrs was of the X family, with reduction gearing and supercharger, whereas the 12Xhrs was identical but rotated in the opposite direction. Number system The STAé introduced a numbered attribute indicator from the late 1930s, thus; 12Y-26, 12Y-27 – left and right rotation versions of the same engine. Basic versions of each engine had even numbers and opposite rotation version were odd numbered. ==List of H-S piston aero-engines==

Data from:''Moteurs d'Aviation Hispano-Suiza'' ''Livre d'Or de la Société Française Hispano-Suiza'' Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Jun 28 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Jan 28 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Nov 29 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Dec 30 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Jun 30 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Nov 31 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Apr 32 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Oct 32 Hispano-Suiza:Revue et Bulletin Technique de la Société Française Hispano-Suiza Jan-Jun 35 Le moteur-canon V8 Hispano-Suiza HISPANO-SUIZA:LES MOTEURS DE TOUS LES RECORDS Aviafrance ;5Q: ;6M: :6Mb :6Mbr ;6P: :6Pa ;8A :8Aa :8Ab ;8B :8Ba :8Bb :8Bc :8Bd :8Be :8Bec ;8C :8Cb ;8F :8Fa :8Fb :8Fe ;9Q :9Qa :9Qb :9Qc :9Qd :9Qdr ;9T :Produced under licence from Clerget, derived from the Clerget 9C, diesel radial engine. ;9V :9Vr :9Vb :9Vbr :9Vbrs :9Vbs :9Vd :9V-10 :9V-11 :9V-16 :9V-17 ;12B: (1945) ;12F: :12Fd ;12G: (Type 50) :12Ga :12Gb ;12H: (Type 51) :12Ha :12Hb :12Hbr :12Hbxr ;12J: (Type 52) :12Ja :12Jb ;12K: :Kb :Kbrs ;12L: :Lb :Lbr :Lbxr ;12M:(Type 57) :12Mb/500 :12Mb/500r :12Mc/500 :12Mcr/500 :12Md :12Mdr :12Mdsh ;12N: (Type 61) :12Nb/650 :12Nbr/650 :12Nbrs/650 :12Nc :12cNr: :12Ndr :12Ner :12Nfr :12Ngr :12Ns :12Nsr :12Ns Special :12Nsr Special ;12X : (Type 72) :12Xbr :12Xbrs :12Xbrg :12Xbr :12Xbrs :12Xbrs1 :12Xdrs :12Xfrs :12Xgrs :12Xgrs1 :12Xhrs :12Xhrs1 :12Xirs :12Xjrs :(Type 76) with calibre Hispano-Suiza HS.404 cannon between cylinder banks, firing through propeller shaft. :12Xcrs :12Xers :12Xirs :12Xjrs :12Xirs1 :12Xjrs1 :12X-13 ;12Y:(Type 73) :12Ybr :12Ybrg :12Ybrs1 :12Ygrs :12Ydr :12Ydrs :12Ydrs1 :12Ydrs2 :12Yfrs :12Yfrs1 :12Yfrs2 :12Y-21 :12Y-25 :12Y-26 :12Y-27 :12Y-28 :12Y-29 :12Y-38 :12Y-39 :(Type 77) with 20 mm Hispano-Suiza HS.404 cannon between cylinder banks, firing through propeller shaft. :12Ybrs :12Ycrs :12Y-28 :12Y-29 :12Y-30 :12Y-31 :12Y-32 :12Y-33 :12Y-36 :12Y-37 :12Y-41 :12Y-45 :12Y-47 :12Y 49 :12Y-50 :12Y-51 ;12Z: (Type 89) :12Z-1 :12Z-17 :12Z-89 ;14AA:(Type 79) :14AA-00 :14AA-01 :14AA-02 :14AA-03 :14AA-04 :14AA-05 :14AA-06 :14AA-07 ;14AB :14AB-12 :14AB-13 ;14H :14Ha-7a :14Hbs :14Hbrs ;14U :Produced under licence from Clerget, derived from the Clerget 14F, diesel radial engine. ;Hispano Suiza 400hp V-16 ;Hispano Suiza 600hp V-16 ;18R ;18S :18Sb :18Sbr ;24Y: (Types 82 and 90) ;24Z (Type 95) ;36Y ;48H ;48Z: ;Whirlwind: ;Abadal 12Y:(HS 8 with a third inverted vertical bank) at 2,500 rpm, with reduction gear, weighing . ==Hispano-Suiza in-house Type designations==

Data from: The Hispano-Suiza Type numbers were used for all Hispano-Suiza products, including cars trucks and engines: Types 21, 22 and 23 are known to have been cars. ;Type 31: Prototype, (bxs ), with mixed cooling (11 fins) and initial production 8A, (bxs ), with 8 cooling fins, 1,450 rpm, . ;Type 34: 8Aa, 1800 rpm, 4.7:1 compression, , 100% water-cooling. ;Type 34-S: (S for surcomprimé) 8Ab, 1800 rpm, 5.3:1 compression, , 100% water-cooling. ;Type 35: 8B, 2,000 rpm, , geared. ;Type 35-S: (S for surcomprimé) 8B, 2,000 rpm, , high compression, geared. ;Type 36: 8B with Lewis gun ;Type 38: 8BeC, Type 36 with a modified SAMC Model 37 cannon ;Type 39: Coupled engines ;Type 40: (8E ?) ;Type 41: (8A ?) ;Type 42: 8Fb, (bxs ), , at 1,800 rpm. ;Type 42VS: 8Fe ;Type 43: cannon equipped project ;Type 44: A later, little used, moteur-canon version. ;Type 45: cannon ;Type 50: 12G ;Type 51: 12H ;Type 52: 12J ;Type 57: 12M ;Type 61: 12N ;Type 72: 12X ;Type 73: 12Y ;Type 76: 12X with cannon ;Type 77: 12Y with cannon ;Type 79: 14AA ;Type 82: 24Y ;Type 89: 12Z ;Type 90: 24Y ;Type 95: 24Z ;Type 96: 48Z ==Specifications==

Data from: This table gives the major attributes of each engine model, where known. ==Applications and chronology==