All, Non-scientist amateur looking for an answer. I understand that planetary rotation aid is vital to maintain a magnetic dynamo. Venus' slow reverse rotation is often used as an explanation for its odd low magnetic field. Assume there is a moon or a double planet that is tidally locked, therefore no rotation, but is in a very rapid orbit, say 20 to 40 hours. Would the orbital rotation do anything to stimulate the dynamo or would it likely die due to lack of spin? For example, the Earth will eventually becoming tidally locked to the moon and the dual system will orbit one another. Would this mutual spinning orbit, but no individual rotation, do anything to maintain the dynamo? Can you maintain a dynamo when mutally tidally locked, either the planet or the moon? Thanks.