Assertion: glider's engine | /r/CapableOf | drive counter-rotating propellers
Facets:
Source sentences:
text: The prototype P-38, flown in January 1939, was powered by twin Allison liquid-cooled engines driving counter-rotating propellers, which negated the torque developed by high-performance aircraft.
text: The prototype P-38, flown in January 1939, was powered by twin Allison liquid-cooled engines driving counter-rotating propellers, which negated the torque developed by high-performance aircraft.