TFL Hobbies "Popeye" Hydro: P-Sport Hydro

[Doby]

What kind of issues are you having?

[flraptor07]

What kind of issues are you having?

Well I've only had it in the water one time and I'm pretty sure I know what direction to go. I have a turn fin alignment problem because the least little bit of left correction it tries to roll over. And I'm pretty sure I need to adjust the strut and or move some weight forward because it's too nose high. But what are your thoughts on the rolling over problem?

[Doby]

I had a similar issue with the original small turn fin...the slightest left rudder and she would spin out. When I replaced it with the UL-1 fin, the problem fixed itself by about 75%. Can you post some pics of the current fin alignment?

[flraptor07]

I had a similar issue with the original small turn fin...the slightest left rudder and she would spin out. When I replaced it with the UL-1 fin, the problem fixed itself by about 75%. Can you post some pics of the current fin alignment?

Here's some picsDSC02322.jpgDSC02294.jpgDSC02286.jpgDSC02291.jpg

[flraptor07]

I'm thinking I need to recurve the fin too, it might have a little too much curve in it and it's trying to hydrofoil

[Doby]

Hmmm...nothing seems odd...the amount of curvature seems similar to my UL-1 fin.

[flraptor07]

Hmmm...nothing seems odd...the amount of curvature seems similar to my UL-1 fin.

I got looking at it and you can't see it in the pics but it has a little twist in it as it curves. and I just checked it and it's about 1/8" out of parallel.

[ron1950]

all i know is no hydro with a turn fin on the right side likes to turn left......

[flraptor07]

all i know is no hydro with a turn fin on the right side likes to turn left......

Yes this is true but you should be able to make a little left correction without it immediately trying to turn turttle!

[tlandauer]

You made a beautiful turn fin! I think I asked you once and forgive me for asking the second time, bottom of the blade is flat---would that cause lift? I know it isn't much.
When you said alignment, do you mean that because of the angle which is built-in on the back of the sponson that prevents the turn fin to mount parallel? I find it was impossible to bend the thick Kintec bracket. I attempted to bend the UL-1 bracket without success as well, ended up shimming the bracket. Still don't know if the problem is solved since I have not had the time to run her yet.
I made a fin w/o the curve for a BBY Zephyr Hydro and got rid of the left-right-left dance.

[flraptor07]

You made a beautiful turn fin! I think I asked you once and forgive me for asking the second time, bottom of the blade is flat---would that cause lift? I know it isn't much.
When you said alignment, do you mean that because of the angle which is built-in on the back of the sponson that prevents the turn fin to mount parallel? I find it was impossible to bend the thick Kintec bracket. I attempted to bend the UL-1 bracket without success as well, ended up shimming the bracket. Still don't know if the problem is solved since I have not had the time to run her yet.
I made a fin w/o the curve for a BBY Zephyr Hydro and got rid of the left-right-left dance.

Yes I found that too, the back of the sponson is not square with the center line of the hull. I just shimmed my bracket to square it up, mine was out by a little more than a 1/8" in just the length of the fin. I also took a little of the curve out of the fin and I think I'm going to sharpen it all the way down around the bottom too. THANX!

[RandyatBBY]

True your turn fin and drop your strut. That will help. Also limit the travel on the rudder with your radio. good luck!

[flraptor07]

True your turn fin and drop your strut. That will help. Also limit the travel on the rudder with your radio. good luck!

Thanx Randy, I did notice something about the rudder, i think I'm getting deflection from the prop to the rudder because they're too close together with using that dual pickup rudderDSC02317.jpgDSC02297.jpgRIMG1221.jpg

[RandyatBBY]

Farther to the right will speed up the hooking to the right. Short of moving the rudder to the left or port side best will be to limit the travel. How heavy is the servo?

[flraptor07]

Farther to the right will speed up the hooking to the right. Short of moving the rudder to the left or port side best will be to limit the travel. How heavy is the servo?

Hooking to the right is not the problem, it's when you make the least little bit of left correction it tries to roll over (barrel roll). Are you talking about strength or weight? it's a Savox SW0231MG 208oz. torque and it weighs 66g.