[SwampyBottoms]

38 hp vanguard 60" b series set at 20 deg pitch turning 3590 rpms on a 1872 with pods and I get 5 mph in clean water and 3.8 with the bottom dragging the mud.

 

[froghunter]

post em up!!

im gathering info my fan build.

 

[kriscad]

We get 6-8 mph - depends how much beer we have.

 

[Texas Two Guns]

38 hp vanguard 60" b series set at 20 deg pitch turning 3590 rpms on a 1872 with pods and I get 5 mph in clean water and 3.8 with the bottom dragging the mud.

Post a picture too so we can see how heavy your rig is.

 

[SwampyBottoms]

If I knew how I would. We were at the state shoot last weekend. The only fan there

 

[g-devil]

38 hp vanguard 60" b series set at 20 deg pitch turning 3590 rpms on a 1872 with pods and I get 5 mph in clean water and 3.8 with the bottom dragging the mud.

how many blades u running? any reduction?

 

[SwampyBottoms]

Three blades and yes a reduction

 

[g-devil]

just wondering . i have a 35hp briggs ,arrowprop reduction, 4blade 60" b series prop at 10 deg. 3600rpm. aint sure how fast i should probably check. lol

 

[markland]

2080 SD Mod-V with 29hp Kawasaki DFI, belt drive, 50in IVO 3bl set at max pitch turning 3540rpms and last time I checked with GPS and 2 people, no load in boat was 7.8mph wide open. Will push my boat in 8-10in of water and 6in with soft bottom.

 

[mudfish]

My 23 B&S 3 blade 42 inch prop would do 5 MPH on a 1860 Tanko.

 

[warrior-p]

It will be very difficult to beat Marklands number in a fan boat. All the fan boats I have built and fished in range between 7-8 mph. The fan can not break over the wall of water it is pushing to achieve anymore speed unlike an airboat that powers thru the wall and pops upon top.

 

[markland]

It will be very difficult to beat Marklands number in a fan boat. All the fan boats I have built and fished in range between 7-8 mph. The fan can not break over the wall of water it is pushing to achieve anymore speed unlike an airboat that powers thru the wall and pops upon top.

I agree my boat has a 4in V in the front and cuts thru the water better, I believe that is why it get's the top speed it does even though it is a very heavy boat, well that and the stiffness and width of the IVO blades I believe are very efficient for the size also as far as pushing air without residual drag and turbulence and loss of efficiency.
When I have a load of people in the boat and the front is down in the water more I loose alot of speed out of my fan becuase it starts pushing more water then cutting thru.

 

[Texas Two Guns]

Wow, I thought I heard Sanford was getting like 11mph in clean water. He told me it would get so fast he'd have to reverse it and slow down a little to fish. That was with out a reducer, I think.

 

[SwampyBottoms]

I agree I'm just trying to help out the next person building one. I had no idea how fast it was suppose to go.

 

[Beaver]

Wow, I thought I heard Sanford was getting like 11mph in clean water. He told me it would get so fast he'd have to reverse it and slow down a little to fish. That was with out a reducer, I think.

11 MPH is way to fast to fish. A crisp walk is 5mph and thats way to fast imo.

 

[Bob_Esper]

wonder how fast those gyro fans push, i know they push hard, just not how fast

 

[warrior-p]

11 MPH is way to fast to fish. A crisp walk is 5mph and thats way to fast imo.

He is not getting 11mph on a standard 38hp or less hp with reduction or without fan motor.

 

[Texas Two Guns]

I'm just saying.........It was built by FannMan, so maybe he'll chime in.

Beaver your right, but sometimes I want to run not walk.

 

[mudfish]

11 MPH is way to fast to fish. A crisp walk is 5mph and thats way to fast imo.

LOL do not get a airboat!!

 

[afflicted]

LOL do not get a airboat!!

True! Carbureted ain't that bad but FI will book it. Mine idles at bout 950-1000 rpm. It ain't too bad tho