Commander 227

[Commander227]

Commander 227

Do you have any idea how much electricity you can generate with the Sevcon PMAC 48 volt controller setup?

I was unable to find the Curtis WD-45 throttle you mentioned. I found a WP-45 but it only works up to 30 volts.

Have you given any thought to where you will locate the batteries?

Will you use a folding prop or a fixed prop to maximise regenerating capability?

So when you have completed your repower I would like very much to fly up to see your setup. Would you be willing to show it off to me?

I really do not yet have a handle on the regen capabilities. There are so many variables such as prop slippage, prop size and come in speed. I think I'll just have to play with the programming once the system is installed. A few sites selling similar systems claim to be able to regen while at anchor in a current. I don't think I would want it to come online and start inducing drag until I was near hull speed, but I'll have easy charging in my slip.

My mistake... it is the WP-45. Keep in mind it is not using the full line voltage, just the 10.5v controller circuit voltage. Anyway I'm off the WP-45. The Harbor 20 uses a Motorguide electric motor set up and has a very neat key switch and throttle in a nice recessed pan that will mount flush. It is 5-0-5 K ohms, it does not have any feel or neutral detent, but I've found it to work great the few times I've sailed a harbor 20. I just ordered the pictured set up from Schock.

Batteries will be kept as low and close to the C/G as possible. I had to place a couple of sand bags in my anchor rode compartment this summer to balance the 9.9 O.B. Before haul out I pulled the O.B. and the sand bags and the boat still rode bow high and took almost 100# to level out the boat. Being the I.B. motor will sit about 6' aft of the C/G, I know I'll need at least 2 batts well forward. I will not build the battery boxes until all systems are in place and I can float the boat to get the balance right.

A folding prop will not work with the relief cut into the keel and rudder. I am debating on 2 blade vs. 3 blade. If I use a 2 blade I can mark the shaft and pin it inline with the keel when racing, but it sure is nice to have that 3 blade bite when you are accelerating or stopping. I'm on vacation next week and have Dave Garr's "Propeller Handbook" for my beach reading.

I'd love to show it off if it works and I don't end up pulling it all back out and hauling it to the scrap yard.