In 1945, preliminary design began on Allison's first turboprop engines. One was the T40 (Allison Model 500), which consisted of two T38 power sections driving co-axial contrarotating propellers ...

Most of the time, an aeronautical engine is only somewhat interesting without the context of the aircraft it's mounted inside. There are a few exceptions, of course. We need not name-drop the ...

A classic engine duel is beginning to take shape in a category often thought extinct at the dawn of the second century of commercial aviation: the untapped market sector. Not since the late 1960s - ...