Need the perfect pairing for?or foil to?holiday movie binges that include old-timey favorites such as It’s a Wonderful Life" Why not check out this 1953 U.S. Army film explaining what a fluid coupling, the backbone of automatic transmissions’ torque converters, is and how one works"

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While this video isn’t the work of the prolific Jamison Handy, whose near-hypnotic tutorials on topics as wide-ranging as suspensions, differentials, fuel systems, engine lubrication, cooling circuits, and manual transmissions have made their way onto YouTube, it is just as informative. In this clip, the U.S. Army shows us how a fluid coupling enables torque converters both to multiply engine torque and to dispense with clutches without stalling the engine when a vehicle comes to a stop. So grab an eggnog, and learn something.
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