I've sailed a psuedo-ON Class model race boat, 'Streaker Too', for umpteen years, and which was powered by the very nice, but fragile Jackson outboard. Originally it used a 380 sized brushed motor, but I upgraded it to a 550 later on, which worked even better, but got through final drive bevel gears like I go through Jaffa Cakes!
Spare bevels have been unobtainable for some time now, and so 'Streaker Too' has been aground, but is still in good shape hull wise. Recently I've bought an Aeronaught outboard, which is much larger than the Jackson, but is tall enough to fit the hull, but has no motive power installed and I'm thinking of going brushless.
The question is, which brushless motor would be the equivalent of the 550, using the same prop as the original?
I'm entirely ignorant about brushless motors apart from knowing the 'KV' number means revs/volt.