A new private message reply from Spike Spencer.
Is your winch visually the same ? There should be a plate on the motor casing that gives the spec. If it is 90W and the same as this one, I doubt you would see any improvement. Unless your brushes have failed, motors like that either work, or they don’t work.
Regret I have not had use of this winch myself so unable to comment on its ability to haul Challenger sails in high winds. It would also depend on how the lines are reeved on your boat. If it is any help to you, I could do a measured pull test to calibrate what this winch actually does.
Original message by SteveW
Is the challenger mainsheet windlass still available?