Grand Banks 32 Sedan - Page 2

Xsbank · 03-24-2018, 05:55 PM

The number of blades has no bearing on whether or not the engine is "over-propped." Pitch and diameter only have that effect. The more blades, the smoother but the less efficient, unless you have one of those scimitar bladed wheels like they used to put on nuclear submarines, not too likely. I had a four-bladed wheel on my '32 (595) and she was underpropped when I got her, Osborne Propeller changed the pitch and stopped some "singing" that I had. Three or 4 blades is fine, just get it balanced and trued and consult others for the WOT RPM you need, I've forgotten.

Bob Cofer · 03-24-2018, 08:26 PM

A 24x15 would be just about right for Ebbtide. We can reach 2500 rpm at WOT. 2800 rpm is spec according to the late Mr. Smith.

Nomad Willy · 03-24-2018, 10:02 PM

Schmidty,
Three blades are better unless you have so much power that a three blade becomes overloaded from insufficent blade area. Not likely w a 120 FL. Maybe though if you had a 3-1 gear.

The four blade prop in this situation will have too much blade area and require a very low pitch. The low pitch dosn't move much water but provides a high surface area that adds too much drag.

A smaller dia 4 blade could be smoother giving greater prop clearance and reducing the hydraulic pounding on the bottom of the boat. Otherwise a four blade has no decernable amount of reduced vibration. The smaller dia. 4 blade will be less efficient.

Bob I thought 2500 was WOT (properly loaded) in gear.
2800 would likely be out of gear w no load.

Nomad Willy · 03-24-2018, 10:10 PM

Xsbank,
The load on a prop is dependent on pitch X dia but blade area has a large effect also. So the basic variables are pitch, dia and blade area. With the same blades a 4 blade has much greater area than a 3 blade.

Reel Grace · 03-25-2018, 07:16 AM

I was in a 32 GB on Ft Myers Beach a few weeks ago. Very nice boat. It's listed for sale on Yachtworld art $99K. Im 6'2" and I had no problem in the salon and cabin. Easy to get in and out of the berth also with teak grab bars above the berth.

mplangley · 04-08-2018, 12:42 AM

I think part of the issue of getting around the Grand Banks 32 'engine room' is where all the peripherals (battery boxes, water heater etc) are located. If these things are not in the way or if they can be moved such that they are not in the way I think you'll find you have fairly good access to the engine. I keep a couple of rubber pads on hand to make it a bit more comfortable and also you can add a movable step right over the transmission area to help get in and out of the engine.

Port Tack · 08-23-2021, 01:55 PM

Quote:

Originally Posted by Reel Grace

I was in a 32 GB on Ft Myers Beach a few weeks ago. Very nice boat. It's listed for sale on Yachtworld art $99K. Im 6'2" and I had no problem in the salon and cabin. Easy to get in and out of the berth also with teak grab bars above the berth.

I find the GB 32 to be one of the sharpest of the GB fleet but without an exit next to the helm it makes it kind of out of the question.

Sailor of Fortune · 08-23-2021, 02:32 PM

Quote:

Originally Posted by Port Tack

I find the GB 32 to be one of the sharpest of the GB fleet but without an exit next to the helm it makes it kind of out of the question.

simple to ad a steering station on back deck. Way handier than trying to exit side door and moor

Frosty · 08-23-2021, 06:37 PM

Quote:

Originally Posted by Sailor of Fortune

simple to ad a steering station on back deck. Way handier than trying to exit side door and moor

You have caught my interest with that. The GB 32 was always one of my favorite boats but I, too, took it off the list (I think) due to no helm door and often being single-handed. (Why couldn't they just have put a skinny/short door!).

But I didn't know you could easily add another helm with the "chain" (or whatever you officially call that) steering (chains run around the side and then go up to helms). I know you can't speak to specific details necessarily, but is it in general easily doable with that type of system?

That would be very interesting.

Or, now that I think about it, are you envisioning a jog lever on an autopilot for steering? I had thought of that, and liked the idea, but then saw a number of people saying it wasn't quick/good enough for docking (I don't have any more detail than that). I'd be happy to find out differently (I seem to always like various sedan cruisers with no helm door

)

markpierce · 08-23-2021, 07:02 PM

My 5'7" height frequently hits my head on a 42-foot GB's deck doors. Blessed are my port and starboard deck-level pilothouse Dutch doors.

Sailor of Fortune · 08-23-2021, 07:10 PM

Quote:

Originally Posted by Frosty

You have caught my interest with that. The GB 32 was always one of my favorite boats but I, too, took it off the list (I think) due to no helm door and often being single-handed. (Why couldn't they just have put a skinny/short door!).

But I didn't know you could easily add another helm with the "chain" (or whatever you officially call that) steering (chains run around the side and then go up to helms). I know you can't speak to specific details necessarily, but is it in general easily doable with that type of system?

That would be very interesting.

Or, now that I think about it, are you envisioning a jog lever on an autopilot for steering? I had thought of that, and liked the idea, but then saw a number of people saying it wasn't quick/good enough for docking (I don't have any more detail than that). I'd be happy to find out differently (I seem to always like various sedan cruisers with no helm door

)

easier to add another station if hydraulic steerin but not much harder with chain/sprocket setup. Throttle and gear shift are simple. If you have a bow thruster, easy to add another toggle on "outside station" Whether elec or hydraulic. GB 32 is a nice size boat and worthy of exploring this option

Frosty · 08-23-2021, 09:35 PM

Thanks for the extra info

I do like the 32 a lot.

R. Bush · 08-23-2021, 10:59 PM

Quote:

Originally Posted by Sailor of Fortune

easier to add another station if hydraulic steerin but not much harder with chain/sprocket setup. Throttle and gear shift are simple. If you have a bow thruster, easy to add another toggle on "outside station" Whether elec or hydraulic. GB 32 is a nice size boat and worthy of exploring this option

You have caught my interest too. I am a single handed sailor, and have written off a lot of boats I otherwise like because of the lack of deck access for docking from the helm station. By the time you have added that third helm station doesn't friction start to become an issue? When you want to change throttle setting or shift gears you are now pushing on three sets of cables and two other shift mechanisms. I would love to hear from someone who has done this about how happy they are with the result.

If it is easily doable it would put some boats like the Prairie 300 and Mainship 34 back on my shopping list.