2352 Planing speed.

[RandyBC]

Can somebody tell me how fast the 2352 typically rigged needs to go to stay up on plane?

 

[Monterey10]

Re: 2352 Planing speed.

I can't give you an exact speed, but if you're running a 4 bladed prop, it will allow for a slower planning speed. The 4 blade won't loose it's grip on the water as fast as the three bladed prop will

 

[RandyBC]

Re: 2352 Planing speed.

Hey Craig.

It is a 3 bladed prop. I'm not sure what pitch yet as I haven't removed it from the shaft yet.

Randy

 

[emoney]

Re: 2352 Planing speed.

Randy, there were 3 motor options on that particular boat. You should probably have this thread moved to the particular forum, I'm imagining "Mercury I/O" in this case, and then update it with exactly which motor you have. Then, describe the hull in terms of weight and weight carrying for those not familiar with it, and then you'll probably start getting more precise to your situation answers. You can ask a Moderator to move it.

Great boat, btw. i love my little Trophy 1802. Even though it's worthless information to you, I'm running a 19pitch 3 blade aluminum with a 120hp Force and it wants to drop off plane around 22mph-ish. Of course, it's almost the polar opposite of your 23 1/2 foot version, but hey, I'm bored at work.

 

[Monterey10]

Re: 2352 Planing speed.

Randy, My 2352 came with a 15 X 14. At half throttle, the engine was at maximum RPM. Mmmmm. Then I realized that the boat had been used exclusively for trolling. With the engine at idle, the 15X14 trolled at a nice speed for Salmon. This prop gives me 2 mpg. The engine is clearly over revving, so, I beleive I can get better mileage.

I spoke with a number of Trophy 2352 owners on THT forum. They suggested the 15X 16 4 blade prop. Unfortunately, with work and all, I haven't be able to try it yet. The THT members said this was a heavy boat for a single, thus the need for the 4 blade prop. It makes sense. You can never really achieve high speeds on the Ocean where I live. So, you need a prop for crunching through the slopp at 1/3 throttle.

 

[RandyBC]

Re: 2352 Planing speed.

Thanks for the helpful responses fellas. I unfortunately haven't had a chance to run this boat yet and won't until the spring or summer . I think the prop is probably 15X17X3 but I'm not sure about that either since the boat is at our summer place 1000kms away.

I'll have to look at 4 blade props as you suggest Craig. From what I've read so for, the benefit of 4 blade becomes more apparent at the 23ft mark. Until I know how the 3 blade works on my boat, I won't have an appreciation of the 4 blade. My original post was really to find out at what rpm this boat will require to climb onto plane and stay there. I'm wondering how fast I'm likely going to run this boat and what the fuel consumption is going to be. I'm used to sailing (wind is free). I must say that I was shocked by how much fuel these boats consume. I'm not hurting for cash, but still.........sheesh, $100/hr at WOT makes one pay attention.

 

[Monterey10]

Re: 2352 Planing speed.

Most of my boat have always gotten 3 mpg. If the big ol 2352 can do that, I'm happy.

 

[seabeagle]

Re: 2352 Planing speed.

I've compiled a lot of numbers for our 2007 2352WA with a 5.0l MPI 260 hp Alpha1. We also weigh in at 6235 lbs with a little less than 1/2 tank of gas and no passengers. As far as the lowest planing speed, it's tough to keep on plane under 3500 rpm or 25 mph.

14.5 X 17 - 3 blade Mercury
Upwind

4400 rpm
34.8 mph
1.8 mpg
19.0 gph
20% slip

3800 rpm
28.2 mph
2.1 mpg
13.6 gph
25% slip

Downwind

4550 rpm
35.6 mph
1.8 mpg
19.6 gph
21% slip

3850 rpm
30.1 mph
2.2 mpg
13.8 gph
21% slip

Downriver

5000 rpm
40 mph
1.8 mpg
20.6 gph
19% slip


14.5 X 19 -4 blade Turning Point
4000 rpm
36 mph
2.1 mpg
19% slip

3800 rpm
34mph
2.3 mpg
19% slip


14.5 X 17 - 4 Blade Turning Point
Upriver

4850 rpm
37 mph
1.7 mpg
23% slip

3900 rpm
26.3 mph
2.0 mpg
32% slip

Downriver

3725 rpm
29.5 mph
2.5 mpg
12.0 gph
20% slip

3600 rpm
28 mph
2.4 mpg
11.4 gph
22% slip


15 X 16 -4 blade Quicksilver
Upwind

4950 rpm
34.7 mph
1.7 mpg
25% slip

4775 rpm
34 mph
1.7 mpg
20.1 gph
24% slip

3700 rpm
25.5 mph
2.1 mpg
11.8 gph
26% slip

Downwind

3900 rpm
27.6 mph
2.2 mpg
24% slip

4900 rpm
34.5 mph
1.7 mpg
20.3 gph
25% slip

3850 rpm
27.5 mph
2.1 mpg
12.9 gph
24 slip


15 X 16 - 3 blade Quicksilver
5050 rpm
38 mph
1.8 mpg
20% slip

4050 rpm
30.9 mph
2.3 mpg
18% slip

Upwind

5000 rpm
37.4 mph
1.8 mpg
21.3 gph
20% slip

4000 rpm
29.5 mph
2.2 mpg
21% slip

Downwind

5075 rpm
38.1 mph
1.8 mpg
21.5 gph
20% slip

3975 rpm
29.1 mph
2.3 mpg
22% slip


16 X 16 3 blade Quicksilver
Upwind

4950 rpm
36.2 mph
1.7 mpg
20.6 gph
22% slip

3750 rpm
26.3 mph
2.2 mpg
12.6 gph
25% slip

Downwind

5025 rpm
37 mph
1.8 mpg
21.0 gph
21% slip

3800 rpm
26.6 mph
2.2 mpg
11.9 gph
25% slip


15 X 16 3 blade Quicksilver
Downwind

5050 rpm
37.5 mph
1.8 mpg
21.2 gph
25% slip

5100 rpm
38.6 mph
1.8 mpg
21.2 gph
24% slip

4000 rpm
30 mph
2.3 mpg
13.3 gph
25% slip


Upwind

4975 rpm
35.6 mph
1.7 mpg
21.0 gph
28% slip

4000 rpm
29.5 mph
2.2 mpg
13.5 gph
26% slip

 

[RandyBC]

Re: 2352 Planing speed.

Wow, great info! That is exactly what I was looking for.

 

[Monterey10]

Re: 2352 Planing speed.

Yes, Good info. As mentioned, my older 5.7 with a rebuilt 2 barrel carb, running a 15X14 3 blade was getting exactly 2 mpg per Floscan. As mentioned, I could only use 1/2 throttle. It will be interesting to see what the old 5.7 can do with the correct prop.