== Counter-rotating engines == 

 If Henschel actually designed the Hs-129 to have engines that turned opposite to each other (which certainly seems to be the case from photos of the -129 that I've seen), making the right engine turn clockwise as seen from the cockpit and the left engine counter-clockwise would hardly have solved an airplane's torque problems.  First of all, unlike a single, a multi-engine airplane has no torque swing on takeoff.  Its torque problems arise during single-engine operation, if one engine fails, and this problem is exacerbated if the downward-moving prop blades on the good engine are outboard rather than inboard.  So Henschel configured the Hs-129 to have more dangerous single-engine torque no matter which engine failed.  A conventional piston twin is easier to handle single-engine if the good engine happens to be the one with its downward-swinging blades -inboard- of the enginetypically the left engine on U. S. twins.  (It has to do with the length of the moment arm between the aircraft centerline and the prop blade producing the most thrustwhich, in a twin operating on one engine in the necessarily nose-up/high-AoA configuration of an airplane trying to fly on half power is the downward-moving blade.)  I'm a multi-engine-rated commercial-licensed pilot and have thousands of hours flying dozens of types of piston- and jet-engine twins.