Black Jack 26 Twin

[mudl]

Hello

i want you to show may Black Jack 26 Twin.

Hull is laminated with blue Texalium.
Two powertrimms with Ball Bearings
Two engines Kontronik Kira 500-36 with Air and Watercooling
Two escs YGE 120 Navy
2x Lipos 3s1p 3200 Kokam H5 30C

It is very fast.Speed with x442 Andy Brown is 98,5 kmh.
Here you find also pictures

http://www.pbs-passau.de/boote_black_jack_26_mudl.htm

and a smal Video with a Powerstart

http://www.mb-forum.at/video_anfahrt_4.AVI

bye
mudl

[mudl]

and some other pictures

[RCprince]

I showed them this Black jack a few months ago, Dude your boat is sick...nice... http://forums.offshoreelectrics.com/showthread.php?t=3873 so it's yours...do you have a longer videos

[RCprince]

Who makes the rudder, If I may ask?

[mudl]

Hi

sorry i have at time no longer video.
The ruder is made by a guy whos named Catpower.
He is a specialist in making Boat parts.
actually he has an HPR Rotschi Cat with length 2,33 meters and powerd with two lehners 3080 an 2 Packs of 12s4P Lipopacks

[RCprince]

oh yes swissboats

[rockwerks]

That is sick! totally nutz, I love it LOL

[Spot Me 2]

WOW, just WOW!!!!

[krusty]

Very nice!!! what's top speed?

[mudl]

Top Speed is 98,5 kmh#
or 58,7 mph

[krusty]

Congratulations 58.7 mph is an amazing speed but it matches well with your amazing boat! I am just putting my boat back together and I am hoping to break 50 mph.

[mudl]

Hello

here is a new Video from my blackjack 26 at the electric Powerboat meeting in
Ebensee

http://nl.youtube.com/watch?v=XEkZSm_u6kU

I hope you enjoy it.

Bye
mudl

[krusty]

Very cool Thanks Krusty :flammes-09:

[OJ racer]

You should put bullet nuts on the shafts. With that kinda speed, and drag reduction helps. I bet it would break sixty.

[mudl]

Hello

new top speed is 61,2 mph

bye

mudl

[krusty]

Congratulations on your new speed, that is outstanding!! :rockon2: put my boat back together I only ever managed to get 47 mph. I then blew it up again and have now put everything back to stock, still runs between 39-44 mph depending on which prop I throw on. But it no longer blows up. :banana:

[Brushless55]

That is wrong and perfect at the same time! I love it!

[j.m.]

Once you find some glassy water and play with the struts, maybe throw on a set of sharpened and balanced copper beryllium props you might hit 70.

[animigan]

And I hear you'll hit 80mph if you take the stickers off. Even I know that and I've been RC boating for only two weeks now...

[mudl]

Hello

after one year not driving the BJ 26 i rebuild the boat.
Yeasterday i was driving !!!!

Here are the results:bounce:

www.mb-forum.at/video_black_jack_26_118.wmv

enjoy the video :thumbup1:

greetings from germany :tiphat:

mudl

[krusty]

Congratulations on hitting 74 miles an hour that was insane :banana: :banana: you have your boat running like a dream.

[NitroVal]

Wow, 74mph is insane out of a 26" hull..

[bab]

WOW nice job :thumbup1:

[bwells]

excellent job but I thought we were told the BJ hull is not capable of those speeds! In your last video, you did 3 different props but I only caught the last 2, the 642 and 442. The 442 did 5 mph better than the 642. This reminds me of my big boat that came with a 22 pitch prop and the 4.3 v6 would turn 4200 RPM and do 44 mph but would not get me out of the water on a single until 200 feet( 6 feet , 200lb). I thought that I need to prop down and take the hit on top end to get the hole shot. Slapped on a 19 pitch and got the pull needed and the motor now turns 4700 RPM and does 48 MPH, A win win situation. Thanks for your testing and I,m going to try a 4 series pitch on my BJ26 and increase diameter as needed. Excellent job on that boat and a nice looking lake!

[Brushless55]

Awesome! :w00t:

Great Job!

[jlr3rd1]

i was wandering ,why did you remove the drivers Canopy ???

[Eggy]

Nice job, didnt think that the BJ26 hull was good for more than mid 60's, but guess i was wrong :P


i was wandering ,why did you remove the drivers Canopy ???

I bet you that the Canopy's have been cracked when he was flipping the boat. I blew over at mid 40's and cracked one canopy, later the same week i blew over again and the second was gone.

[jlr3rd1]

ok true :) i didnt know if it was due to weight or drag? but bet you are right

[mudl]

Hello

thanks for the gratulations.
Cannopy's are broken by a turn over.
I will try to reduce the weight of the boat to drive much faster.At the moment the boat is at 3200 gramms ready to run.And i think its to much.Maybe i can beat 80 mph

mudl

[wirenut67]

I LOVE THIS FRIGGIN BOAT!

I am in the process of building a BJ26, and think I am now going to twins. This thing is awesome!

Thanks for posting it and giving me some new ideas!


Mike

[Eggy]

What kind of water intakes are you using? Cant see any on the pics.
Also replace the RX battery pack with a Castle Bec, only what will shed of around 100g.

[kookie_guy]

What kind of water intakes are you using? Cant see any on the pics.


post #2, the last picture of the bottom of the hull. You can see the 2 pickup tubes near the transom. He has them mounted to the bottom of the boat.

[wirenut67]

Ok forgive such a noob question. The shafts come out of a part called the strut correct? What brand of struts are on this boat? I have a bj26 I am rebuilding and have decided to go for twins....eh why not right?

How does this type of strut work with a stuffing tube? How does it exit the hull?

I know you guys are probably cracking up at my lack of a clue, but hey how else am I gonna learn this stuff! hahahaha

This thing is an inspiration.


Mike

[mtk]

hahahaha I no alot about our boat but I still get confused 2 ok yes it is a strut but what Power system will you use

[mtk]

this means moter esc drive wire or flex shaft

[kookie_guy]

Ok forgive such a noob question. The shafts come out of a part called the strut correct? What brand of struts are on this boat? I have a bj26 I am rebuilding and have decided to go for twins....eh why not right?

How does this type of strut work with a stuffing tube? How does it exit the hull?

I know you guys are probably cracking up at my lack of a clue, but hey how else am I gonna learn this stuff! hahahaha

This thing is an inspiration.


Mike

that my friend, is a stinger strut.

http://www.offshoreelectrics.com/proddetail.php?prod=ros-stinger-str

[wirenut67]

Thanks Guys!

I have no idea what motor to use. But I sure like those two struts. reasonable price as well.

Do you guys have any motor and esc suggestions that are close to what he used on that twin he built?

The more I look at it the more I WANT ONE!

how does the stuffing tube work with this kind of strut? Does anyone have a picture of how the stuffing tube and strut come together, or does the shaft just come through where the strut bolts tot he stern?

Guys seriously I am sorry for all the dumb questions, I am just wanting to learn all I can!

Thanks for the help guys!


Mike

[tiqueman]

Holy :censored: Mudl, that is insanely awesome! Fantastic job and twice as fast as mine... thats not right.:drool:

Scott

[mtk]

out of stock

[mudl]

Hello

this are my motors

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6527&Product_Name=Turnigy_B36-56-04_2600kv_Inrunner

and this are my struts

http://www.hopf-modelltechnik.de/PRO-LINE-Bi-Color-Powertrimm-Flexwelle-32-mm-links

http://www.hopf-modelltechnik.de/PRO-LINE-Bi-Color-Powertrimm-Flexwelle-32-mm-rechts

My take off for the watercooling is at the bottom of the cat.This are only two little holes.It works great.i make it on every of my boats

greetings
mudl

[RCprince]

wow, 25 dollar motors, lol...your putting fractures in a lot of preconceived theories of buying expensive equipment.

[tiqueman]

Hello

this are my motors

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6527&Product_Name=Turnigy_B36-56-04_2600kv_Inrunner


Not at all what I was expecting to hear.... :buttrock:

[Brushless55]

Hello

this are my motors

http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6527&Product_Name=Turnigy_B36-56-04_2600kv_Inrunner

greetings
mudl

That's amazing from such cheap motors!
maybe I will pull my stock Venom motors and try these out.. :thumbup1:

[rockwerks]

electronics dont have to be expensive to be good, we have 50.00 esc's that perform better than the 240.00 units also.

[mudl]

Hello

now i made some new testdrives.
I reduced the complet weight of the boat about 10 %.
Speed was the same. :crying:
Today i chagenged from 4s lipo to 5s Lipo

New Topspeed is 79,3 mph :bounce:

Next Drive i hope the BJ 26 runs over 80 mph


greetings
mudl

[Eggy]

Nice, any vids or pics?

What modifications are done to reduce the weight since the last run.

[NitroVal]

+1 on the vids. Those are some effing insane speeds.
Are you still running x442 props and the 2600kV motors?

[Brushless55]

That's sick man! :w00t:

[mudl]

Hello

for reducing the weight i take Rockamp Lipos 4400 mah and a smaler batterypack for the resistor.
Now Setup is 5s SLS Lipos 6000 mah same Motors and the X442 Octuras

greetings
mudl

[mudl]

Here ist the video with reduced weight
Speed 73 mph

http://www.pbs-passau.de/video_black_jack_26_117.wmv

:thumbup1:

[wraith]

I just bought a bj26 and finally got it to the water and i have to say i was kinda disappointed with the performance of the thing out of the box. I havnt gotten to run it yet with the lipos but with 4500 stick packs its not too fast. This thing however is a friggen monster! It has def inspired me to keep it and see what i can do with it.

[G-UNIT]

That boat is fantastic! Someday in my dreams maybe i'll get there.
When i hit the lotto.

[Jeff Wohlt]

Looks like Turnigy motors may not be bad afterall. So you smoke one...no big loss at $25.00

[wraith]

im obviously new at this so dont laugh TOO much but would it be a bad idea to run two stock motors and esc's? jus curious

[mudl]

Hello

i think the original motors and escs works very well with 4 s lipos and Props about
42-45 mm.I think that you need only a singel pack 4 s Lipos for both motors.(i drive in my BJ 26 also only one pack for two engines)

greetings

mudl

[wraith]

thanks a lot! Your boat is bad a$$

[mudl]

Hello

i want to sell my BJ 26 because i want to build a complete new one.

If somebody is intrestet

http://forums.offshoreelectrics.com/showthread.php?t=11412

greetings
mudl