Sv43 xl

[rscheffer]

http://img22.imageshack.us/img22/3900/3whf.jpg (http://imageshack.us/photo/my-images/22/3whf.jpg/)



http://img12.imageshack.us/img12/4692/ltcz.jpg (http://imageshack.us/photo/my-images/12/ltcz.jpg/)


http://img842.imageshack.us/img842/6503/0v4m.jpg (http://imageshack.us/photo/my-images/842/0v4m.jpg/)
here are some pictures from my sv43
The hull was laminate by Andy from Berlin ,Germany
Building her up with 2x 5850 600 kv.
4x10 s5000 mah lipo's





http://img27.imageshack.us/img27/7673/rcs3.jpg (http://imageshack.us/photo/my-images/27/rcs3.jpg/)


http://img4.imageshack.us/img4/9596/927u.jpg (http://imageshack.us/photo/my-images/4/927u.jpg/)


http://img708.imageshack.us/img708/4126/qzv9.jpg (http://imageshack.us/photo/my-images/708/qzv9.jpg/)

[Alfa Spirit]

Very nice hull, what is the lenght? I don't understand your setup, 44000 RPM unload or 22000 RPM?

The struts are very short, For big boats like yours and mine, we need approx. 130mm for stability, speed, etc...

Flex are 1/4 steped down to 3/16

105061

Those stingers are very cool,you ccan adjust lenght they are very well build. On rhe picture it is 120mm long


http://imageshack.us/a/img191/2271/2oif.jpg


A push pull rudder mount is very clean and secure, rhose parts are not easy to find, same for the T center mount at the other side

105062

[steveo]

Will the prop roost hit the overhang of the boatit could possibly effect the boats ride by creating lift. Now this may effect smaller lighter boat more but just a thought.

[rscheffer]

Rpm will be 22000 (no load)
Boat length is 168 cm

This set up has been done before. http://rc-powerboat-forum.de/index.php?action=posts&site=1&fid=49&tid=15354
Length of te drives is 120 mm but can be made longer very easely by making longer aluminium distance blocks put infront of the strut holders.

Speed with x470 pros is aprox 90 kmh with a very goor driving time ,because this hull wants to be driven like a scale hull ca9 min total will be possible.
If i can get 4+ min on one 10 s pack each motor that can be an alternative , saving 3 kg on the boat.
Props i have to test are mbp 60 mm props 1.2 pitch.
Ps6514/3. Ps 7016 and the octura. X470

[Alfa Spirit]

Here is the link with complete building : http://www.offshore-rc.com/forum/index.php?showtopic=24687&hl=+sv +43 +lipoyo&page=1

25000 or 26000 RPM is better for this hull, 22200 RPM is to low


http://www.youtube.com/watch?v=54Crv84h77E

[rscheffer]

Thanks for the link, i mailed with Laurent several times .
Sadly his englisch is as poor as my French so google translater is our comon friend.
For me the speed laurents boat drives is oke. I have other semi scale big electric boats or racing purpose.
Buster 45 mono 3060-10 4,5 min full throttle setup 105 kmh
Rpb Skatercat twin 4035-800 skorpions this is a 6 min fullthrottle setup. In this vid my buster running extremly licht en skatercat from 16 min forward
http://www.youtube.com/watch?v=60U6GllQTBA&feature=youtube_gdata_player
Hpr 135 and mhz mystic 138 also twin 4035-800 skorpios
All 2x10s 5000 mah setups
The 600 kv tp's will pull the bigger props and draw lower currents like the gas versions driving the mtc twins inline.
My aim is ca 90 kmh like Laurent's sv , i favor driving time for top speed.
As mine will be ca3 kg lichter and that is inkl 10Ah per motor in stead of 8Ah Laurents has.
If i want more in can always put in the 750 kv tp's , thats an easy change.

[Alfa Spirit]

The boat on the video works very well. This is a 45", mono or twin? What is the setup and the hull?

I' m building a 50" Fountain twin setup: 4092- 930kV and 10s

105397105398

[rscheffer]

The buster mono is 45 inch, i laminate these hulls my selve.
Its a redesigned razer hull , with simular driving properties but now better looking,suiteble for brushless power and much stronger then the polyester hulls and epoxy hulls comming from MHZ ,H&M etc.
My hulls are made from epoxy glas and sandwich material also on request with carbon and carbon/keflar reinforcement.
They are also used for gas racing boats, where they run extremly well.

My setup is 3060 -10 lehner schulze 32-202 2x10s5000 hyperion weight 9kg
95%full throttle in oval trim gives
Stainless 55mm mbp prop. 97kmh 5,5 min
Stainless 60 mm mbp prop 105 kmh 4.5 min
X460. 106 kmh little less then 4,5 min

Very windy conditions and second time i got her on the water http://www.youtube.com/watch?v=2yih4pDawpM&feature=youtube_gdata_player

[Alfa Spirit]

Yoyo' s SV43 max speed is 97km/h . The bpat can go faster avd more powerful bthe esc are limited to 8S.
This hull need 2 x 10S or 2 x 12S, 26000 to 28000 RPM unload

[rscheffer]

.???????
He IS running 10s ..

bonjours Ã*!** tous

un coucou de France par lipoyo et de son bateau un sv 43 au couleur de lucas oil

setup du sv

moteur tp 600 de kv

contro hifei 300 amp

lipo part moteur 10 s en 8000

trans mtc

safran fabriquer par mini meca en france

support moteur mini meca

a+ et bonne photo



Anhänge:
PB240302_pic.jpg

104.368 Bytes 12 Downloads

[Alfa Spirit]

Ok, may be he changed his setup recently, I will ask him or may be he told you 10S , you won' t do the same mistake

[rscheffer]

Small update , still alot of small things to do.:olleyes:
http://img833.imageshack.us/img833/9828/0u29.jpg

http://img94.imageshack.us/img94/5659/j8fp.jpg

http://img94.imageshack.us/img94/5817/g6f6.jpg

[Alfa Spirit]

I like the medium SV43, what is the lenght? I build an other P1 a 1 meter RAPID twin setup : 2 x SCORPION 3026 1900kV on 6S ( 40000 RPM ) but I' m not happy with the clear coat

http://imageshack.us/a/img6/8538/jcn4.jpg

[rscheffer]

Length total is aprox 125 , botom is 115
These hulls defenetly need painting if you want an nice finish, but because Andy ( the laminator of these hulls) is an air brusher so most hulls are shipped painted already.

[Mathieu]

I agree I own a baby SV and the hull need to be painted to get a good looking.

Mathieu

[rscheffer]

The baby sv has a far better finish than the big one,but thats because it was not intended to be in mass produktion .
But a paint job and she looks stunning.
By the way i had my first run.
With The x470 props i had 94 kmh on the gps so 19500 logged with my sw300a controllers is defenetly enough to get her on speed.
Piek amps of 140 amp and on full speed only ca 70 amps so plenty of running time ca 8 to 10 min and stil 19 % remaining capacety
Curve handeling needs some work, and some adjusting/learning from my side (because i usualy run race
But sofar i am very happy.

Gr Ramon

[rscheffer]

Here is a movie .
Very windy conditions but having a good time :rockon2:
4x10s onboard. Propshop 7016/2 Speed.. plenty for ths conditions :bounce:
http://www.youtube.com/watch?v=7Uc-DmmSvME&feature=youtube_gdata_player

[Fella1340]

RS, great looking boat and a real fine job done. A small detail but ii love the flex tube braces.
Any chance of getting a photo com motors to transom. I am planning a build and its it details
Like that that really set off the other fine work. What type of carbon/core material Layup up are you
Using for.the mounts. I have seen a couple different versions of it but I have never found
it for sale. Are you using an shakable core material and laminating yourself?
Sorry for all the questions but when I see something I like I have to ask question's!
Are you happy with the TP motors performance? And finally, how do you like the long
Extension rudder for the application. It looks great just wondering how it is in the turns etc.
sorry.for.all the.question's again. There seem to be.few big mono builds and the closer I get
To.starting mine the more questions I have! Awesome boat! By the way you showed excellent
restraint having your build decisions questioned every step of the way. It goes to show that
Experience speaks as loud or louder then someone with a calculator crunching numbers and
commenting with little or no hands on experience. Good job.

[rscheffer]

My motor mounts are are home made as most other parts
I laminate 2 layers of glas to both sides of the multi layer plywood , you can use carbon but i mostly use plane glas and epoxy with black pigment mix in it. I call it carbon look.
Its relative light and stif but much cheaper than carbon plate.
My flex is mounted as flat/streight as possible to minimize friction to the teflon liner.
The bras tube holder is made from 8 mm epoxy plate .
For the long rudder, i will test this set up first and than compare it to a smaler rudder extentioner .
Wich will locate the rudder in front of the props, i have some good experience with that kind of setup before.
So we will see .
Experience wise i have been building al kin of boats for more than 15 years gas, electric, big and small, single ,twins .
Racing gas boats you learn alot.
Last year i sold my last gas boat, continuing only with the bigger brushless boats with 2x10s5000 setups

Buster mono 3060-10 lehner
Hpr135 scorpion 4035-800
Mystic 138 scorpion 4035-800
Rpb skater scorpion 4035-800
Sv43 xl and the baby still to build
I am not into the extreme setups but reliable and fast enough :bounce:

I also laminate compettive racing hulls ,the Buster mono 115 cm (brushless and gas )
And will start next summer wit a new 1 m hull project.
The lipo holders are laminated with carbon and glas with sandwich on the bottem so they are stiff strong and are big enough hold 8 x8000 mah lipo's .
For now my running time is 10 min with the 10 ah per motor so i am pleasedwith that.

Gr Ramon

[Fella1340]

I am planning on doing a long extension on my next build. Love the. Look! And I hope it works
the epoxy glass with pigment looks just like the real thing. I have ordered some twill weave 9oz
Glass cloth with pigment. Part of reinforcing the top deck, a layer of s glass then Kevlar forthe toughness
leaving the entire top deck and hatch cf free to help with rx signal and GPS. Hull will be a combo
layup as welll. Hull is very thin. This boat I want to make special but after seeing your results
I way use a similar technique in my next build. You had me fooled. I thought it was the lighting that
Wasnt. So good to clearly see the carbon. I can see using the sandwich plate technique and leaving the ply 1/16" smaller to accent with coloured epoxy. It may just work in my current build. Excellent
Job!

[Fella1340]

Hey Alfa, where did you find the push pull mount for the speed master rudder?
I am also interested in the T mounting bracket as well, you stated they were hard to
find and then forgot to enlighten us as to where you got them. I have seen the t bracket somewhere
Before but I can't remember. You've got the sources so can you help a fella out?

Rs, hows the tuning on the sv going. Is the long rudder going to be a winner or is shortening needed? Any changes made? I assume you are happy with the speed and amp draw as they seem good to me, perhaps you find things could improve. I am all ears!
I am running a single so I decided to try twin rudders with the 6" extension. My stinger will bring the prop out to 5". With the variety of monos you have built and modified I was hoping you could share your thoughts. Any ideas on how far they should be spaced apart for a chance at good handling? Do I need to rethink things altogether? Thanks, boat still looks great!

[Alfa Spirit]

Hello Fella,

For a center bracket you can make a deal with Modellbopirat to buy only the T bracket, that is what I did.

http://mbp-rc.de/MBP-7075Alu-157-127mm-lang_1

http://mbp-rc.de/bilder/produkte/gross/MBP4823_b2.png

An other option is Arrow Shark

http://www.arrowshark.com/standard-drive.php

http://imageshack.us/a/img163/8885/8mhg.jpg

You can try to install this : http://www.ebay.fr/itm/RUDDER-ARM-CNC-aluminium-rc-model-boat-5mm-complete-/121009273985?pt=UK_ToysGames_RadioControlled_JN&hash=item1c2cb6fc81

or

Those on a shaft http://www.ebay.fr/itm/Aluminum-servo-rudder-arm-linkage-clip-adaptor-x-2-for-RC-Boat-/271324601616?pt=Radio_Control_Parts_Accessories&hash=item3f2c34dd10

[Doby]

Nice to see one of these boats actually built and on the water...looks great!

[rscheffer]

I ran her 1,5 week ago.
On a bigger lake , trimmed the drives a bit more down to get it more stabble.
Testing 1x10s 5000 mah each motor 15 kg ready to run gives 4,5 min running time and 93,8 kmh with the x470
Running 2x10 s each motor 18 kg readyto run gives 9 plus min running time and 94,3 kmh propshop 6514/3

So i am pleased so far, trim tabs and diffent turnfins wil be testet in the future but the weather is not getting better over here temperature is around 6 degree celcius . So i won' t be running my boats that much for thr comming time.
It won't be long before we can expect some ice over here.

[Fella1340]

Thanks Alfa, that is enough contact info I would feel foolish if I couldn't find them!
Rs, keep us posted on how things are working out please! Seems to be running great.
I can't watch the video on this device so I will try something else later.

[rscheffer]

Her is a new video from last weekend small electric meeting.
Filmde by a quadrocopter .:rockon2:
Have been running 8.5 min at this pace and still22% left in my lipo's :thumbup1:
Enjoy
http://youtu.be/VflA7lvGfUg

[rscheffer]

New video from the same day, the full run.
http://www.youtube.com/watch?v=dS7zVzr9SHE&feature=youtube_gdata_player

[Alfa Spirit]

I have 2 large rudders push-pull for sale blade = 140mm bracket = 150mm with 2 water inlets, very high quality, let' s have a look


http://www.offshore-rc.com/forum/uploads/post-3842-0-05258800-1398962320_thumb.jpg

[rscheffer]

Hello alfa. Can you please delete you post and put it in the for sale department.
As it has nothing to do with my sv43 !

[Alfa Spirit]

Hey Alfa, where did you find the push pull mount for the speed master rudder?
I am also interested in the T mounting bracket as well, you stated they were hard to
find and then forgot to enlighten us as to where you got them. I have seen the t bracket somewhere
Before but I can't remember. !

Here is what you need

[rscheffer]

Then please post a pm to fella 1340 and don't juse my topic
I dont need a rudder mine wordk just fine

[Fella1340]

Sorry about that I was expecting him to tell me where he got them, how many months ago....
It's isn't relevant to me whatsoever. Alfa it's bad form to flood people's builds with all those pictures.
You know better and no I am not interested in anything you have, put it where it belongs, the sale forum!!

[Outerlimits SV43]

Hi, thanks for nice tread! Hopefully you could help me out and perhaps give me your advice regarding KV. I have the same boat as Lipoyo (SV 43) and planning for 2x TP 5850 but not sure what KV I schould go for. First I was thinking about the 990KV but I see Lipoyo running with 600KV!?
What do you think? What difference will it be (660KV VS 990KV)
Thank you in advance! :)

Best,
Per Arne
(Norway)