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.

Designations

Letter system

The Service technique de l'aÃÂ©ronautique (STAÃÂ©) 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 Ã¢ÂÂ 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 Ã¢ÂÂ 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 STAÃÂ© introduced a numbered attribute indicator from the late 1930s, thus;

12Y-26, 12Y-27 Ã¢ÂÂ 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 SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Jun 28

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Jan 28

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Nov 29

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Dec 30

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Jun 30

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Nov 31

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Apr 32

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Oct 32

Hispano-Suiza:Revue et Bulletin Technique de la SociÃÂ©tÃÂ© FranÃÂ§aise Hispano-Suiza Jan-Jun 35

Le moteur-canon V8 Hispano-Suiza

HISPANO-SUIZA:LES MOTEURS DE TOUS LES RECORDS

Aviafrance

5Q:

6M:

6P:

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:

12G: (Type 50)

12H: (Type 51)

12J: (Type 52)

12K:

12L:

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

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 35: 8B, 2,000 rpm, , 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.