Originally Posted by
rc_speed
Hello,
I bought my first boat, a UL-1, and am going to race it at the local club. I have changed the prop to the aquacraft recommended L38X55. I am using Zippy flightmax 30C 5000 lipos. Everything else is stock.
On the test and tune day, I flipped it one time. Now I see a couple of hairline cracks at the seams. I would include a picture, but I don't think you would be able to see the cracks in it. The cracks don't seem big and they don't appear to be deep. However, when I finished running for the day (4 runs), i pulled the plug out of the back and dumped out about 1/8 cup of water. Is this normal?
No...you should have NO water in the hull at the end of the day. If it's not leaking in those cracks, it could be leaking around the stuffing tube where it enters the hull....mine did.
What is the best way to seal the cracks? I bought some marine epoxy. I thought I would mix it up and then spread a LIGHT coat along all the seams of the boat.
I have great luck running thin CA glue into those hairline cracks.
Now for my other question.
I bought a replacement aluminum turnfin that is thicker than the stock one, but is straight. I did this on the recommendation of a fast guy at the club.
I tried the straight fin and didn't like it, went back to the stock one.
He said the stock prop can bend under the forces of use.
This should not be a problem unless you thin it down too much.
Can somebody explain to me how to tune the turn fin?
That is down by adjusting it up or down per the instructions in the manual. I just leave mine all the way down.
thank you,
tim
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