Turbomeca Marboré I was an enlarged version of the Palas and
was first flown in 1951.
1951 Continental obtained a license to build the Marboré
II, designating their version the Model 352. The
U.S. military designated this engine the J69. The J69-9
produced from 660 to 880 lbs thrust.
Continental began adding transonic axial
compressor stages. These improved Model 356 engines
produces up to 1,920 lbs (8.5 kN) thrust.