Aerospace Engines A to Z
Aerospace Engines A to Z

Updated: 06-Oct-2021

The Hart Engine Co. was based in Leeds. The engineer of the company, Mr. Redrup (see Redrup), built a 10-cylinder, 50 hp rotary engine, around 1910. (possibly with two rows of 5 cylinders),

-Later they built a 7-cylinder that gave 150 hp. A 9-cylinder 156 hp radial was built at Vickers Ltd.

-It is mentioned that there was another 9-cylinder rotary of similar power, 150 hp.

From Appendix 7: A 150 hp Hart engine was mounted on a Vickers FB.12, replacing another one of another brand that failed. This aircraft model installed several different engines.

Vickers with Hart radial engine
“Vickers with Hart radial engine” (PiP-fmr)

Engines of HART

Model: 10 cyl.

Arquitecture: 10-cylinder Rotary
Cooling: Air
Total Displacement:
Bore / Stroke:
Power: 50 HP
Weight:

Other details:
Model: 150 HP

Arquitecture: 7-cylinder Radial
Cooling:
Total Displacement:
Bore / Stroke:
Power: 150 HP
Weight:

Other details:
Model: 9 Cyl.

Arquitecture: 9-cylinder Radial
Cooling:
Total Displacement:
Bore / Stroke:
Power: 156 HP
Weight:

Other details:

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