Any multi-engine
pilot can tell instantly which side has the failed engine. Very simple:
"Idle engine, idle foot." If your right engine is losing power, it will
take left rudder to maintain straight flight.
You
should believe the flight manuals which come with the engine and
airframe. I was learning to fly the DC-3, and the owner said "Increase
power to 32" and reduce rpms to 1800." "The flight manuale says don't do
this Sir." "Just listen to how quiet this thing is!" he replied. Thirty
seconds later the owner's son came up and said "Your left engine is on
fire!" By golly he was right. By the time we got the fire out half the
cowling had melted off. It had swallowed a valve and raw fuel was being
dumped right into the exhaust. (We were on final approach so the booster
pumps were on.)
"I sure wish I could blame you for this, but I can't," said the owner.