There are two engines from J. Szablosky from 1935, the JS-3 and the JS-4.

“Szablowski JS-3”

-Two different sources of information give the JS-3 two power ratings: one of 9 HP and the other of 15 HP at 22,00 rpm.

-Looking at the photograph, the reduction gear is above and between the two cylinders, that is, the gears are in the center of the crankshaft. Or so it seems.

-The JS-4 is a four-cylinder engine. At the moment there are no further details available.

From Appendix 12: Below we show images of an engine developed at Lviv Polytechnic University by J. Szabloski, known by the reference JS-3 of 12 kW (16 hp)

“JS-3 engine on a Puo-du-Ciel” (PiP-SP)

“With the JS-3 engine installed” (PiP-SP)