Brushless conversion done, a few questions.

[kahnen]

crossion X is not what you use to seal a radio or anything like that. corrosion X is a lubricant. ONLY
the product you are thinking of is corossion BLOCK which is also a lubricant but also a penetrater and waterproofer.
that is what you use on a receiver or anything electronic

Oh, Thanks.

I'll check some corosion block out.

[Xzessperated]

Kahnen it has been great reading your thread and I can remember having that same feeling of both excitement and horror as I hit the throttle for the first time using LiPos and a brushless motor. In my case the boat stood up and rolled over at the same time landing upside down at my feet in the water. I thought what power these things have. I hope you go on to have a summer of fun with your boat. Good to see your little son is going with you.
I would seek some advice from a guy that knows about circuit boards before I sprayed anything on my esc. Some sprays conduct electricity and could smoke your controller if they shorted things out. I do not know the products you are talking about so I can not comment on those 2 products. The best way is to stop all water getting into the boat. Tape it up well and use some fuel tubing where the flex shaft enters the boat. I put some of the wifes sponge from her kitchen sink in the bottom of my hull to soak up any water that does enter the hull. It weighs next to nothing and stops water splashing about if you do get any in.
Paddy

[kahnen]

Got some video. A nice day, a nice run and no incidences.
This run went really well making me feel more confident in steping up my prop to now squeeze a bit more speed from it.

http://www.youtube.com/watch?v=8rY6xyYAsDw

[Quicksilver]

I've been sitting here thinking.........is that actually faster than the brushed setup? I really mean no offense, but I cant tell. Seems to be running really wet. Then again it's better than my villain that seems to want wings. Just wondering if you could get more speed by trimming up a bit, not like mine, but a bit. looks like it's nice and under control, as some people led us to believe was impossible with the villain.

good job though really :)

Got some questions, what is your shaft angle? and could I get another shot of the interior with the batteries in, ready to run. Can you tell I'm trying to copy you?

edit: another thought, I bet she'd go faster in a light chop.

[kahnen]

Your right Quicksilver, if its faster than before its not much but here is why I'm not worried.

I was using a 40mm prop on 14.8v and with the 700 I was up to a 45mm with 16.8v. I've been told the brushless motor can swing the 45mm so you can bet in further testing I'll be proping up to a 42mm, then the 45 if all goes well. After that I'll have to start playing with metal X6xx props. So I expect more out of it where with the 700 I think I was close to the limit.

Running wet- Its kinda hard to tell on the Youtube vid but the hull is airing out when the water roughens up from running a few laps. Also I'm running just 1 lipo pack which makes my options of CG harder since I have to put the battery across the hull instead of along the bottom straddling the motor with a 2 pack setup.

The shaft angle is neutral so it could be raised up a degree or two. Its something I'll have to play around with.

I'll try to get more interior shots within a couple of days.

[Quicksilver]

thanks, I'm wondering because with mine porpoising like it is, I need to figure out what I'm doing wrong. I still havent touched my villain yet this year, the shaft is still about negative 3 degrees or so. gotta fix that. You're still not using any turn fins or tabs right? If so I would say the villain does in fact have some potential...maybe even dare I say, for racing.

[Quicksilver]

Ok wow, 40 minutes later and I fixed the strut angle. It now is positive 3 degrees or so, but it goes to neutral. For any future villain modders, dont use the SV27 strut it has so little adjustment that anything over a few degrees requires modding the transom. This time I cheated and used some washers on the bottom screws.

[kahnen]

I am useing one turn fin on the right, no tabs though right now.

[Quicksilver]

That's good, I did some work today, I extended the rudder post and mocked up some turn fins. They might be too big but I figure you can always cut more off and they are very sharp. The rudder should work much better, the stand off is about 1 1/4" longer now.

If anyone has suggestions on the turn fins please tell me. :)

[kahnen]

Your extended rudder looks good.

I like your idea of attaching the turn fins from the side and just bending them to be 90 degrees to the bottom. Seems much easier then trying to find a good place to put the on the transom. Wish I would have thought to go that route Course be careful not to hit something and rip them out. definately reinforce the area with wood or fiberglass. How long are they? They might be to long, I used the dimensions of these:
http://www.offshoreelectrics.com/pro...d=ose-monofins
70mm long.

BTW I'll get those pics up tonight when I get home.

[kahnen]

Heres some inside pics, excuse the mess.

First one shows the battery holder for the lipo.
Next is the lipo going across the hull, this way limits me to only an inch or two forwards and back adjustment.
Last is when I run nimhs.

[Quicksilver]

thanks for the info. I'm still debating where to put the fins. My second idea is place them on the hull extensions(have no idea what to call those), either directly on the bottom or on the inside. They're 50mm long(just the exposed blade) and 30mm at maximum width. It was fun making them, basically just used some snips, a file, and sand paper. I also sanded off the blue anodized strut. I like it matching the rest of the hardware and I removed some of the flaws.

In respect to the inside of the hull, I think your motor might be farther forward than mine. I have to take some new pics......lost a hard drive.

[kahnen]

My motor is placed further forward than yours. I remember thinking that when you posted pics of yours.

With Nimhs I was using them to balance my CG aft. The boat without batteries was just about 30% balanced with the motor (700 motor) forward like that. Now when I run lipo, I wish it was setup like yours with the motor weight in the aft so I could use the lipo wieght in the front with more room to adjust to balance it.

[kahnen]

Well I got a chance to run it today with the 42mm prop and I was pleased with the speed I gained. I didn't have a camera person with me but I was gonna do it myself. Got the boat in the water, turned the camera on and started to go. Did a few laps for the camera, then turned it off to run the boat and enjoy it. After the run, I walked back to the truck and went to veiw the recording and guess what, I NEVER PRESSED THE RECORD BUTTON. So I didn't get any video, I plan on going tomorrow to run again so hopefully tomorrow. Add on more thing to the checklist, camera on, camera recording......

[kahnen]

Well heres the video of todays run with the 42mm prop.

http://www.youtube.com/watch?v=URH_QC25YqM