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rck

Member Since 16 Feb 2008
Offline Last Active May 22 2012 03:37 PM
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Posts I've Made

In Topic: Maxprop

08 June 2011 - 04:55 PM


Actually, with a Max prop, the reverse is true.... the prop has the same thrust and torque in reverse as it does in forward, since the leading edge of each blade rotates to remain the leading edge whether in forward or reverse. Panic stops are a Max prop's strongest point; our 22" coupled with an aqua drive and a Perkins 4-236 has no problem hauling our 50,000 pounds from 7.3 at 1600 rpm to full stop in little more than a couple of boat lengths. It's like having a massive set of air brakes, and one of my favorite parts of the whole install.


Which is why I stated max prop set the standard for reverse performance.  I said ungeared folding props were iffy in reverse....


Ah, I get it now.  OK.

In Topic: John Deere 4045

08 June 2011 - 04:52 PM

It's been quite a while since I installed mine, and I don't have the manual in front of me, but I do recall that DDW is completely correct in that the Aquadrive require a t least 1/2 to 1 degree of misalignment. I'd not hesitate to use the system again; the only thing I could see to improve it would be to epoxy coat it from the factory, instead of the cheap laquer they use. (Maybe they've changed it by now). I epoxied mine before install.

In Topic: Maxprop

08 June 2011 - 04:41 PM

Actually, with a Max prop, the reverse is true.... the prop has the same thrust and torque in reverse as it does in forward, since the leading edge of each blade rotates to remain the leading edge whether in forward or reverse. Panic stops are a Max prop's strongest point; our 22" coupled with an aqua drive and a Perkins 4-236 has no problem hauling our 50,000 pounds from 7.3 at 1600 rpm to full stop in little more than a couple of boat lengths. It's like having a massive set of air brakes, and one of my favorite parts of the whole install.

In Topic: Drool

24 May 2011 - 10:38 AM

ND, we have a Groco Model KH which seems fine... coming up on 5 years of summertime liveaboard use with no real issues... I just keep it clean with a little vinegar and a lot of fresh water once a week or so (we carry over 300 gallons of fresh water, so there's enough to go around). It's not as good as the old Skipper, in terms of the size and bore of the castings, but it's probably close to the best manual head left except for the Lavac, and of course the Baby Blake, which I wish I had bought when I encountered a lightly used 1 for $3000 20 years ago. Ah well.

In Topic: A new(ish) Womboat

24 May 2011 - 10:23 AM

Very very nice, Wombat... but what happened to the old steelie? To a good home, I hope?