Aerospace Engines A to Z
Aerospace Engines A to Z

Updated: 04-Feb-2020

"Brownback Motor Laboratories" in New York was the  license dealer for building Anzani engines in the US. They also manufactured aluminum OX-5 parts for Curtiss-Wright.

-It is known that Brownback built its own engines known by the name of "Tiger". They were made between 1928 and 1939.

-The Tiger Junior 50 was a horizontally opposed, four-cylinder, two-stroke engine. It had dual ignition and gear. It delivered 50 hp at 1,600 propeller rpm.

-The Tiger 100 was a 6 cylinder, two-row, radial engine, and was somewhat heavy for its power: 90 hp to 278 lbs.

Airplane with Tiger 100
"Airplane with Tiger 100"

-The first engine was fitted on the Taylor-Cub prototype, which later became the famous Piper-Cub.

-It is known that there existed a 3-cylinder Brownback "Bumble Bee" radial, which gave 20 hp. They were built at the Brownback Motor Laboratories. It had a derivative, D-3.

-The other engine was the Tiger C400. But actually it was the Tiger 100. One reference is the model and the other the power that was intended for it.

-We include new graphic illustrations for the Brownback engines, which were also manufactured by the Light Manufacturing and Foundry Co.

-The Tiger was a six-cylinder radial, from which they derived the C-400, the Tiger 100 and Tiger 125.

Brownback Tiger, rear view
"Brownback Tiger, rear view"

Brownback C-400
"Brownback C-400"

Brownback Tiger 100
“Brownback Tiger Model 100”

Brownback Tiger Model 125
"Brownback Tiger Model 125"

4-cylinder Tiger Junior 50
"4-cylinder Tiger Junior 50"

Tiger Kitten 20
"Tiger Kitten 20"

Brownback Kitten Model 30
"Brownback Kitten Model 30"

Bloque y un cilindro del Bumble Bee
"Bloque y un cilindro del Bumble Bee"

From appendix 10: Manufactured by Light Manufacturing & Foundry Co.

-When collecting documentation of this brand at the MAE, I would assume that the Tiger 100 and the C400 are the same, or a very similar derivative as the illustrations that I used in the main text are confusing the present ones.

-Both engines give 100 hp. The next picture belongs to an Brownback ad where this 6-cylinder radial engine is announced as model C-400.

Brownback - C-400
"C-400"

Engines of BROWNBACK

Model: Bumble Bee

Bumble Bee block and cylinder

"Bumble Bee block and cylinder"

Model: Tiger 125

Brownback Tiger 125

"Brownback Tiger 125"

Model: Tiger C-400

Brownback C-400

"Brownback C-400"

Model: Tiger Junior, 50 HP, 4 cils. boxer

Brownback 4-cylinder engine

"Brownback 4-cylinder engine"

Model: Tiger Kitten 20

Brownback Tiger Kitten 20

"Brownback Tiger Kitten 20"

Model: Tiger Kitten 30

Brownback Kitten 30

"Brownback Kitten 30"

Model: Tiger, 100, radial de 90/100 HP

Brownback Tiger 100

"Brownback Tiger 100"

The author of this edition of Aeroengines AtoZ, through Aeroteca, collaborated on Version 2 of this video, which is presented here.

To understand the operation of the connecting rods, the 1929 Continental R 670 single-cylinder engine was chosen.

A demonstration of Version 3, improved at the author's suggestion, is also available on YouTube at a later date. This version shows bronze valve guides, improved valve spring movement, and the split crankshaft counterweights and front bearing balls also move.

The design is from Juan Soler, Sant Cugat, Barcelona

Below we show a flash of version 3

Counting also with the coloboration of JMC of Enginys Mecanics in Mataro, Barcelona