ProBoat's new 29" Mystic Brushless catamaran

[Make-a-Wake]

Got mine to run a bit better with a few more adjustments...........still porpoises a bit though......just not as bad.

One thing i have noticed is the use of some pretty cheap "wood" in the boat............or epoxy...................i have managed to rip both of the battery trays out by trying to remove my batteries..........why use such cheap stuff in an otherwise quality boat?

[ecoovert]

Battry tray coming out

Got mine to run a bit better with a few more adjustments...........still porpoises a bit though......just not as bad.

One thing i have noticed is the use of some pretty cheap "wood" in the boat............or epoxy...................i have managed to rip both of the battery trays out by trying to remove my batteries..........why use such cheap stuff in an otherwise quality boat?

If you are talking about the MG29 mine seems solid but I do know from the past with other boats that some are better epoxied than others of the same model. In the case of my Miss Geico I decided to order an extra hull just in case and this hull has more epoxy than my rtr. boat came with but so far it's still holding up. You only need to fiberglass it in or at least epoxy it and it should not give you any more trouble. By the way, what kind of adjustments did you make for the porpoising issue? My home made offset rudder bracket took care of it for me.

Good luck,

Eric

[awall]

IMAG0667.jpgIMAG0671.jpgIMAG0670.jpgIMAG0668.jpgSpent whole morning on the boat:

Sanded and blue printed hull

Replaced all connectors to gold 5.5mm (motor and esc)

Replaced zip tie on esc with velcro strap

Zip tied all water cooling lines at fittings

Stuffed two 12" foam noodle pieces up the forward sponsons

Slightly shortened water lines to motor to keep from pushing against the lid

Shaped, balanced and balanced new X642 prop

Added small racing decals (still have alittle graphic work to do)

Figured CG and added velcro to flimsy battery trays (I want to stiffen these up in the future)

I can't believe I have had the boat this long nd haven't got it out on the water yet. Think it all started with the painting. All well, I do that with most of my models.

[tiqueman]

You did a nice job. Can't wait to see it on the water.

[awall]

Me too!!! Probaly will take her out tomorrow. I did configure the jumper with 5.5mm connectors but might not need it ....will just hook batteries together without it.

[ecoovert]

[ATTACH=CONFIG]62582[/ATTACH][ATTACH=CONFIG]62583[/ATTACH][ATTACH=CONFIG]62584[/ATTACH][ATTACH=CONFIG]62585[/ATTACH]Spent whole morning on the boat:

Sanded and blue printed hull

Replaced all connectors to gold 5.5mm (motor and esc)

Replaced zip tie on esc with velcro strap

Zip tied all water cooling lines at fittings

Stuffed two 12" foam noodle pieces up the forward sponsons

Slightly shortened water lines to motor to keep from pushing against the lid

Shaped, balanced and balanced new X642 prop

Added small racing decals (still have alittle graphic work to do)

Figured CG and added velcro to flimsy battery trays (I want to stiffen these up in the future)

I can't believe I have had the boat this long nd haven't got it out on the water yet. Think it all started with the painting. All well, I do that with most of my models.

I know how you feel. My boat has been ready with it's new 4082 motor for weeks but I havn't been able to get to the lake and may not be able to for quite some time. I went from the stock motor to a 4074 motor with 180 amp seaking esc.... I have ran it with the 4074 setup several times and wow! That thing is fast and stable with the offset rudder. Now I have even more of a beast of a motor, several sharpened and ballanced props up to an x645, Everything ready to run 2200kv. on 6s along with an offset rudder setup I made myself. I am just akin to get this beast on the water.

[tiqueman]

Eco, I would highly recommend not running a 2200kv motor on 6s. And if you decide you have to, small prop for one short pass. That's over 48000 rpm

[ecoovert]

Awsome paint job! I have done some nice paint jobs on rc trucks but working with a simple can of spray paint on a $40 clear body is easy next to having to sand the hull and gel coat everything once you are done on a $195 hull. Do you ever do this for others?

[Diesel6401]

Eco, I would highly recommend not running a 2200kv motor on 6s. And if you decide you have to, small prop for one short pass. That's over 48000 rpm

+1!

Please refer to this thread on the subject: http://forums.offshoreelectrics.com/...ession-with-6s

[awall]

Maiden was great on stock prop. I love this boat. I flipped her once and the flimsy battery tray pulled out on the left side. Didn't have the hatch taped and everything inside was bone dry after fishing it out.

The trays in this boat are disappointing. I went ahead and removed the right tray with very little effort. I read somewhere that someone had this problem too.... but stated his had just a few drops of epoxy here and there down the length of the tray. Mine was glued on both sides down the whole length. The trays are to thin as you can here then crack and flex when you mount the lipos. My other issue is that, IMO...the trays need to extend to the very back (second step). To get the CG at at stock location (7 inches from 3rd step, or 9 inches from second step) the lipos sit half way off the rear of the trays and are bout an inch or two from the transom. I have added some foam up front but in any case I rather not have any amount of the lipo pack not being supported.

I'm thinking about fabbing new trays from little thicker ply and running a block of foam down its backbone under the tray. Maybe adding alittle epoxy between foam and bottom of boat. Before I glue them in I'll tke the oppertunity to add veclo straps. There is enough room to go radical and put them in in their sides. This would make it easier to load and unload. Might have to think that through.

The small piece of wood the retaines the servo with two screws was cupping pretty bad so I will be doing something different there too.

I hope to do this without adding any more weight.
IMAG0672.jpgIMAG0673.jpg

[awall]

Also noticed sunlight shining through the fiberglss resin on the inside edge of the left sponson. I sanded the sponsons and it got alittle thin here for my liking. I layered 5 minute epoxy in these edges on both sides while the trays were out.

[Make-a-Wake]

Looks nice........................what is the "jumper" for? You just connect one pos. lead from a batt to the neg lead of the other batt for series.

[awall]

Yeah..no jumper needed...just went wild when soldering. The lipo leads are long enough to connect.

[awall]

Well... I've went back to touch up the sponson edges and painted them a bright orange. Might be a good color if I'm laying dead in the water during the race. HIGH VISABILITY!!!

I ended up cracking the tip off one side of my X642 prop as I ws pitching it ever so slightly. DANG IT! Anyway...I have since rounded the tips and pitched into the rounds. Maybe this will work out still. Probably will still re-order another one.

[desmobob]

My buddy and I had a weekend of mixed water conditions for our Mystics. Saturday was choppy and we spent very little time running wide open and lots of time in the recovery kayak. Today, it was almost dead flat and we had a lot more fun. I finally remembered to bring the GPS along and my stock Mystic with an Octura x640 was running 40.6 MPH. We were having a good time and I didn't take the time to try my other props [stock prop, Prather 215 (same as stock?), and Octura x642].

My buddy had some issues with his RTR Mystic... when he put in his two 2S1P 5000mah 40C Turnigy packs and turned on his ESC switch, the beeping of the battery confirmation and ESC arming was barely audible; at first, we didn't hear it at all. When he took off and got to the far side of the bay, his boat went dead in the water. After about a minute, it responded again and he ran the rest of the pack out with no incident. On the next set of batteries, it also quit mid-run in the same spot and again responded after a minute or so.

He's using the supplied ProBoat Tx and Spektrum marine receiver and has the long side of the antenna up in the antenna tube and the short end running forward in the hull. Since the incident happened in the same spot --at the farthest distance we had been running the boats-- he thought he may have run out of radio range. But my boat with its cheap HobbyKing Tx and single antenna receiver (with a shorter antenna than his, no less) had no problem in the same spot.

What might cause the barely audible beeping when the ESC is powered up? Could the issue with the boat going dead in the water be related? Curious....

Take it easy,
desmobob