Seaducer Model 60/80

[Fluid]

Jim, will you have this ready to run at Jim's on the 5th?



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[electric]

Jim, will you have this ready to run at Jim's on the 5th?



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Now a deadline to meet? LOL Hmmm. Let's see, it will be close. I need to order a drive shaft today(I have one for my Backlash that I could count down if needed for next week). I also need to figure out the battery situation which I can check tonight. So it's possible. I do have what I need to run 8s if needed, but I want to set it up for 10s.

I might need to borrow an appropriate prop from someone to test it out.

Prop recommendation for the castle 2028, running 10s is needed? Something conservative to start out.

[Fluid]

X460.



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[electric]

Thought I would show the last round of work. I discovered the rudder was missing the brass connector for the water line. Then after some searching through some bags I figured out there was some type of plastic connector and it was broken off in the rudder! Took awhile to get the plastic part out of the rudder, but I finally was able to drill it out and get it fixed.
That pink motor is a typical 580 sized motor that you would get in an RTR. Last picture shows it with all the batteries installed. I am running 10s2p. 37volts of fun!
You will also see I added some caps and also you will see the power tap (blue and white wires) for the receiver power. By the way, the first time I did it I forgot to put in the voltage regulator between the batts and the receiver. I put 22volts into the receiver and promptly blew up the receiver, servo and esc. The receiver blew up like a firecracker. Bone head move of the day for sure.

[electric]

A few more pics... You can see the power supply for the radio. This BEC is tapped into the battery connectors and reduces the voltage. It can handle up to 60 volts and works quite well.

[electric]

Here is the maiden run. Just a quick 2 lap run and then bring the boat in and check it out. Everything was nice and cool to the touch and it ran 63mph. A LOT of room to prop up. If you get a "white" screen, just click on the bottom right button to enlarge it to full size and it will work for you.

https://www.facebook.com/photo.php?v=786168804736564

I had to really dial down the rudder after this run. The boat handles extremely well and turns hard and fast. I do have some chine walk that you can see on the back stretch. I am going to raise the strut 1/16" and see if that settles the boat down a bit, but really ran great for the fist time in the water. I can see why this hull is raced by many people because it really does handle well.

You will also see in the very last frame of the video I hook the boat hard. The reason is I was coming in too fast to the shore because the boat has so much mass that it does not stop quickly. That was quick way to take the speed off before I hit the shore.

[electric]

I am having an odd handling issue with this boat. I have put a larger turn fin on it and that has solved any spin outs on the turns in heavier chop. The next issue is that when the boat hits some chop on the straights it tends to plant the hull in the water and do a 360 degree spin right side up. Quite a stunt. It usually is still top side up and facing the other direction. I know this can happen if you hit a "hole" in the water or something, but I am left scratching my head as to how I minimize or adjust the boat for this issue as it happens just when I am running alone on smooth water with only my wake to contend with. Some thoughts are:
1. Maybe the COG needs to be pushed back some more(I can do a this a bit more)
2. Maybe the boat is too heavy (I could look into going from 2p setup to a 1p)
3. Longer rudder.
4. Servo/Radio issue??

The problem is I am unclear on what causes this type of issue to happen, so not sure what is the best course to resolve it?

[Grazacind]

That sounds very like the old seadunker issues.Lol. I sorted mine out with a bit of work on the bottom to make sure they were exactly the same on both sides and pulled about half the hook out. I had no turn fins on mine and rarely spun out only in really rough conditions. They are a lot heavier as an FE boat and as such don't need so much hook to hold onto the water. Try putting more weight on the transom and the bottom my strut was 11mm above the keel. Have fun mate they are such pretty boat to drive when they going great.
Cheers
Andrew

[electric]

That sounds very like the old seadunker issues.Lol. I sorted mine out with a bit of work on the bottom to make sure they were exactly the same on both sides and pulled about half the hook out. I had no turn fins on mine and rarely spun out only in really rough conditions. They are a lot heavier as an FE boat and as such don't need so much hook to hold onto the water. Try putting more weight on the transom and the bottom my strut was 11mm above the keel. Have fun mate they are such pretty boat to drive when they going great.
Cheers
Andrew

Thanks Andrew, I will shift the weight back a bit and see where my strut is and give it a try, before I start messing with the hook.

[Grazacind]

Good plan. They do like a high strut. I got my servo under the side where you hump pack is. This helped me get the batts all the way back for saw or 50mm from the back for oval.

[electric]

Got the Seaducer out today and on the first test I got about 68mph, but the boat was barely in the water and lots of handling challenges. Luckily there were about 10 gas guys out from the club and they know this boat pretty well. We raised the strut some more, and got the strut leveled out with the COG pushed back and a turn fin change. I also dialed down the rudder motion quite a bit at their suggestion. This second time out it ran really well. I lost about 4mph, but gained a lot more reliability and handling. She is ready to race next week. Good outcome today.

[electric]

In memory of my Seaducer. You will see a video composite of a couple of races run this weekend, but hang on for the last slow-mo at the end. You will see the end. RIP seaducer. Not recovered from the depths of Crosby pond.....

http://www.youtube.com/watch?v=vw0lLhyTVUs

[oscarel]

Oh no! Well the fe30 I lost is in good company. Sorry for the loss.

[electric]

Oh no! Well the fe30 I lost is in good company. Sorry for the loss.

I remember that day Oscar, and I thought of you when I saw my boat go down yesterday. Hey go look at the HOTMBC facebook, and you will see lot's of race video's.

[Fluid]

Jim, all of the HOTMBC feels for you, it is always a sad day when someone loses a boat. Most of us who have raced for awhile have too. Now on to deciding what hull you will build for round two...



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