Hispano-Suiza piston aero-engines

Hispano-Suiza piston aero-engines were predominantly piston engines produced by Hispano-Suiza in France, Spain, and under licence in the United Kingdom, the United States and Russia from the First World War through to the 1950s. Development of these engines started with the very successful V-8 engines which introduced many new features which ensured the success of the Hispano-Suiza line.

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:-
 * 1) Manufacturer - In this case Hispano-Suiza
 * 2) 12 - the number of cylinders in any configuration (V, straight, W, horizontally opposed, radial, etc.).
 * 3) 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)
 * 4) 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).
 * 5) r – attribute indicators, denoting various attributes that the engine might have, (r = reduction gearing, i = fuel injection, s = supercharged, etc.)
 * 6) 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 20 mm 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



(Type 89)
 * 12Z:
 * 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-16 120 x


 * Hispano Suiza 600hp V-16 140 x


 * 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) 350 - 400 hp at 2,500 rpm, with reduction gear, weighing 340 kg.

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 120 x), with mixed cooling (11 fins) and initial production 8A, (bxs 120 x), with 8 cooling fins, 1,450 rpm, 150 hp.


 * Type 34: 8Aa, 1800 rpm, 4.7:1 compression, 150 hp, 100% water-cooling.


 * Type 34-S: (S for surcomprimé) 8Ab, 1800 rpm, 5.3:1 compression, 180 hp, 100% water-cooling.


 * Type 35: 8B, 2,000 rpm, 200 hp, geared.


 * Type 35-S: (S for surcomprimé) 8B, 2,000 rpm, 220 hp, high compression, geared.


 * Type 36: 8B with Lewis gun


 * Type 38: 8BeC, Type 36 with a modified 37 mm SAMC Model 37 cannon


 * Type 39: Coupled 200 hp engines


 * Type 40: (8E ?)


 * Type 41: (8A ?)


 * Type 42: 8Fb, (bxs 140 x), 18.48 L, 300 hp at 1,800 rpm.


 * Type 42VS: 8Fe


 * Type 43: cannon equipped project


 * Type 44: A later, little used, moteur-canon version.


 * Type 45: 37 mm 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.