ML BOATWORKS GSX 380 Q-Sport Build

[785boats]

The only motors I've sacrificed to the 'Smoke Gods' have been Leopards (three of them). The TP & the TFL SSS motors just keep on spinning.
I must agree about the HET motors though. I've only got one of them, but it is very powerful & efficient. But a bit more expensive.

[ray schrauwen]

I don't think my TP 4070 1250kv is working as it should since I got it but I did heat it up a few times too much so, its my own fault. Now I'm running a HET in my Whip 40 but, only got out to run it once and it's nice. I've finally fixed all driveline issues that caused the heat in the first place. It was a great motor and I might send it back to see if it can be fixed at all.

[T.S.Davis]

MHZ version of the watercooled Scorpion 4035? Sincw its 1260kv

That might be worth a try. Atomic sells something very similar in it's big RTR 6s cat. I've not experimented with that though.

[T.S.Davis]

I don't think my TP 4070 1250kv is

Ray, what kind of prop got it hot? Or do you think you had some binding?

One of our club members is running the next KV lower in a mono. We can turn a blade the size of Rhode Island. Might get to 100 degrees on a warm day. Mid 50 mph maybe. Super stable.

[nichismo]

Morning Mike.....Well I guess that pretty much answers my question....

I will have to say that I am having somewhat the same proboems with my 1527 1.5Y in the Elams 1/8 scale. Motor will come back at 140 to 150 and the esc at about 130. To me this is still to hot. I can only imagine the motor is actually getting hotter than that since it takes time to get the sub hatch out etc. Almost wondering if this might not be a better package to go with on a 10S setup in the 1/8 scale. But not sure I woud get the RPM out of it even witha 750kv Leporard.

What do you think?

Mike

if anyone remembers, the first motor I bought for my T5 was a 5698, and even though I sold it, ive been more and more interested lately in 56mm motors potentially for 1/8 hydros. The size was a huge issue for me at first, but now it seems like a minor hurdle to say the least.... the 2028 seems to perform pretty darn well from the few cases ive seen, and ive really been curious what a TP 5670 would do... probably too much power with that particular motor, but with an 8s setup and say, perhaps 700kv, itd be interesting to see?

[ray schrauwen]

I think it was hurt early on with binding in driveline. Stuffing tube would shift and after I hit Zola in 2014 I ran another heat after not noticing the stuffing tube was crushed and binding badly! I went from 455 down to a M447 and still the heat is there.

Ray, what kind of prop got it hot? Or do you think you had some binding?

One of our club members is running the next KV lower in a mono. We can turn a blade the size of Rhode Island. Might get to 100 degrees on a warm day. Mid 50 mph maybe. Super stable.

[cybercrxt]

Any more progress? I would love to see some pics! Mike

[Speed810]

Hey Mike....

Well with the holidays, Deer hunting and re-modeling a bedroom for my granddaughter it took up most of my November....LOL So not really a lot of work accomplished. But actually from the last set of picks...I did accomplish quite a bit...:) The center section top decking is in place, cut the fiberglass cowling to fit. Built up both sponsons and epoxied those to the center section. They fit like a glove...alignment was perfect.

Actually installed some of the bottom stringers on both sponsons, so they are ready to sheet and then install the foam and top sponson decking. Still need to give a coat of epoxy to the interior of the center section and will probably lay some light glass cloth in and around the motor and battery compartments. Don't really think a heavy carbon fiber is needed.

Trying to keep this boat a bit lighter than my 1/8 scale build....LOL

This boat actually goes together really quickly...so not in huge rush. There will be ice on the water soon...:)

Later

Mike

[nichismo]

man I really want to build one of these

[Speed810]

Progress underway

Well took a break on my P-Sport boat. Waiting on more sticks and hardware.

So got back to work on the Q boat. Added some 1/8" sticks in the sponsons for more glue area and completed the skins on the bottom of the sponsons. Took a little longer, but I like to epoxy all the skins on instead of using CA.

Next will be doing some interior fiberglass work and epoxy sealing the interior. Hardware should be here shortly so I can start mounting things and get a weight idea.

[Shooter]

Boat looks great. It's interesting to see all the sponson venting designs. The ML you have opens up the front and allows the air to essentially flow right through (like the whip 40). The whip20 blocks the air in front and opens up the outlet to reduce pressure underneath. The pearl P sport follows the same philosophy but opens up the exit even more with the angled bleeds to reduce even more pressure.

[nichismo]

Any updates Mike?

God I have to be honest, at first, when compared to the first GP sport ML kits, I wasn't too fond of the overall aesthetics of the hull....

GSX380_02_1.jpg

But its grown on me so friggin much! I cant stop looking at photos of it! I just love it, it just looks so sleek, streamlined, and quick even when its not moving, out of the water!

I need to just buckle down and order one already!

[Speed810]

Work on the 380 has finally picked up

Hey all.....

Finally have got back to work on the 380!! I know about time right....

Well all the hardware is mounted, motor mount and rails have been glassed and epoxied. Installed the Virginia Craftsman turn fin, filled the sponsons with expanding foam and epoxied the decks in place. Servo is mounted and water lines were routed.

Nic....Your right----after installing the decks and seeing the lines on this boat, it just looks fast even sitting on the work bench. Next I need to install the stuffing tube and compete the sealing of the interior. After that it will be ready for sealing, prime and paint.

I started test fitting the batteries, ESC, extra cap bank and battery connection plate. Also began some preliminary balance tests and it looks like its going to be right where it should be with plenty of room either way to move the batteries forward or back to zero it in.

So more to come as I move forward....

[b0atnutz3]

Can I ask what size batteries are they?

[cybercrxt]

Looking GREAT!!!! The GSX310, 31" hull cowling molds are now done, and the kits are as well! Mike

GSX310 cowling: