Initially engines were built by the Aircraft Engine Corp. in Oakland. Later, towards 1929, the Comet Engine Corp was founded.
-The Comet 7D, a seven-cylinder, 130 hp radial was followed by the 7E model that gave 165 hp.
-They also made an engine with six inverted cylinders in line that was cooled by both liquid and air. (Mixed cooling)
"Mixed cooled Comet"
-The cylinder, although surrounded by liquid, had fins on its outside for heat radiation. It gave a power of 138 hp at 2,350 rpm.
Engines of COMET (Aircraft Engine Corp)
Model: 6 cils. en linea inv., 138 HP
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
