(See Wright and Martin-Wright). Wright V8 aviation engines under Hispano-Suiza and some marine variant. In fact the name "Hisso" was a kind of nickname for "Hispano-Suiza" but only referring to those manufactured by Wright.

-The Hisso engines, like the one installed on the Ryan Brougham monoplane, was the E-2 engine model.

“Ryan Brougham with Hisso engine”

-The Hisso E-2 gave 200 hp, while the E, dropped to 180 hp. When the first A was made, the power was only 150 hp. There was one that gave 300 hp. The Hisso engines were based on the Hispano-Suiza V8 and in the case of the H-3 it was adapted with a suitable transmission for marine use, as we see below.

“H-3 for marine use”

-In the latter, the entire cylinder silhouette was maintained. They changed the oil sump, the exhaust and accessories, which were not so lightened.

From Appendix 6: In the Wright Wright-Martin period, Hispano Suiza engines were made under license and they were denominated with the nickname of "Hisso", a contraction of the original Hispano-Suiza name. These engines were adapted to American manufacturing methods.

-The Hispano Suiza Model A with 150 hp shown below is a Wright Martin. Later, more powerful versions were made.

“Wright-Martin -HS V8A-”

-At the Aerospace Museum of California we can see the Hisso V8 showed below. At the time of this book's first edition no clear illustration was available.

“Hisso at the Aerospace Museum of California”

-And also a somewhat cropped photograph of the other side of the same engine.

“Hisso by Wright-Martin”

From Appendix 9: Hisso is the nickname for the Hispano-Suiza engines in the United States. Referring specifically to Wright-Martin and Simplex.

-But the author has recently discovered that they have taken advantage of the large WWI surplus amount of these V8 engines, giving them other destinations. They were specifically used in sports cars like the "Midgets".

“Hispano-Suiza V8 with short exhaust pipes”

-The Hispano-Suiza V8 had two separate blocks of four cylinders.

-They were not symmetrical but had the exhaust on the outside and the admission on the inside.

“Hisso V8 engine parts”

-We see the central V-bank, three cylinder blocks and the sump or oil pan of the normal V8.

-For the new use in Midgets car races, a special bench was made for a single block of cylinders.

"The special bench, designed for one block"

-The blocks are installed front side backwards unlike normal aviation engines, so that in front we have the magneto(s) and the vertical shaft to drive the camshaft.

“With the V8-engine's left hand block”

-The propeller output is for the mechanical transmission to drive the vehicle.

-Using the left block, the exhausts will go to the right-hand side of the car.

"Appearance of a car with a left hand block."

-When the right-hand cylinder block is used, the exhausts appear on the left side.

Appearance of a car with Right block

"Preparing the Right Hand block, see water pipes"

“Half-Hisso, prepaired”

-This engine already has clutch and gearbox, as well as ignition magneto.

"Modern car with old engine"

-Of course, there are Midgets with other types of engines, more modern.

-But it is amazing to see that many of them still continue with this type of engine that gave power and many favorable profiles, with the vibration subject against. They were prolific until at least 1950.

-The author has mentioned this type of engine here because it is made on the basis of a famous, well-known and great aviation engine: the Hispano Suiza V8.