Mono~E~Mono: Building a pair of *Bling Rockets*...

[keithbradley]

My son and I have been working on our new Bling Rockets for the last couple nights. We just received them from fightercatracing.com . He is learning everything, from how to read a tape measure (which turns into a sidebar math discussion), to laying carbon fiber, drilling holes, learning why the COG is important on a boat, assembling, ect. Things tend to go a lot slower this way, for example we spent last night assembling our motor mounts and motors, finding and marking 30% for desired starting COG, and putting our gear in the boats to figure out where we want to mount it.

Tonight we layed carbon fiber/kevlar in the bottom of the hulls. I must say Elijah did pretty well. I cut his peice a bit small so at the right angle you can see the end of the cloth on the sides, but we will either be painting that small area black or adding some black tape or something to hide it before we're done. All in all, its the best CF work I've seen from a 10 year old (Is it fair that its the only CF work I've seen from a 10 y/o?)

I'll post pics soon (have to use my wife's camera, someone broke mine )

Power setups planned are as follows:

Elijah's Rocket:

- Motor: 1600kv 1500watt outrunner

- Esc: Swordfish 120A

- Batteries: (2) 3000mah 6 cell nihm, in series

- Prop: 40mm plastic



Keith's Rocket:

- Motor: 2200kv 1500watt outrunner

- Esc: Scorpion water-cooled commander 120

- Batteries: Single 5000mah 4s

- Prop: Prather s215

[Brushless55]

:popcorn2:

[JPriami]

sounds like a great father & son thing to do. Cant wait till my little one is old enough to enjoy this stuff with me

[keithbradley]

http://i624.photobucket.com/albums/tt328/keithbradley/100_4530.jpg

[keithbradley]

Here's a pic of Elijah's CF/Kevlar job...not too shabby. He did all the sanding, taping, resin application, ect. We will spray some black in the front and upper sides to make it all blend in and look classy.
http://i624.photobucket.com/albums/tt328/keithbradley/100_4526.jpg


Here are a couple pics of my bling rocket. Carbon fiber/Kevlar from the same roll. Only difference is mine is 2 layers and E's is 1. 1 would probably have been fine but I didnt like how my first layer looked so I went ahead and did a second. This is the first time Ive ever done "wet-on-wet" carbon fiber layers. Hopefully there are no ill effects once it has completely set (bubbles, ect.)

http://i624.photobucket.com/albums/tt328/keithbradley/100_4529.jpg http://i624.photobucket.com/albums/tt328/keithbradley/100_4527.jpg

[keithbradley]

Oh, I almost forgot...In an effort to make this thread more entertaining, planned speed for these boats will be around 130mph.:wink:

:icon_bs:

[LarrysDrifter]

130mph. Now that's moving! I'll be sure to tell everyone about your speed goal so you get a 4 page thread in a couple days.
Looks good, Keith. I've been thinking about getting one of these hulls. Good luck to you and your boy. I'll be watching your builds.

[keithbradley]

Progress pics...


http://i624.photobucket.com/albums/tt328/keithbradley/100_4551.jpg http://i624.photobucket.com/albums/tt328/keithbradley/100_4550.jpg http://i624.photobucket.com/albums/tt328/keithbradley/100_4548.jpg http://i624.photobucket.com/albums/tt328/keithbradley/100_4552.jpg

[Make-a-Wake]

Very nice build with your son! They will be great fun.*

*how come Elijah gets the nimhs.....hmmm....???

[Brushless55]

looking good man!

[keithbradley]

:help:

Anybody got an opinion on the rudder placement on these? I always thought the leading edge of the rudder should be out about as far as the prop, but these rudders dont come off the transom that far. Im wondering how it will effect handling...

I have considered extending the mounts, but I dont really know for sure that I need to yet:confused2:

[ray schrauwen]

Nice build thread! Very cool you are doing it with your son!!

Maybe you could make an extension to the rudder bracket.

It might get twitchy in the corners with rudder to far forward, try it out.

[millzee]

[QUOTE=keithbradley;292291]Progress pics...


Look's great, I look forward to getting some experience before my son's are old enough to do the same.:thumbup1:

[Jpope]

good looking build, i want to see a vid of these chasing each others roster tail!! awsome father/son project!!

[LarrysDrifter]

:help:

Anybody got an opinion on the rudder placement on these? I always thought the leading edge of the rudder should be out about as far as the prop, but these rudders dont come off the transom that far. Im wondering how it will effect handling...

I have considered extending the mounts, but I dont really know for sure that I need to yet:confused2:

They both look fine to me,Keith.I dont know much about mono's,but I cant see either one of you having problems.Great job to both you and your boy.:thumbup1:

[keithbradley]

Thanks Larry. I wouldnt be all that concerned until I run it, but I am going to powdercoat teh rudder to match the rest of the outer hardware on my boat and dont want to have to weld/grind on it after that. I think it will be fine though:thumbup1:

Made up a battery mount for my Rocket today. will post more pics soon.:popcorn2:

[Rumdog]

You can also shorten up the stinger. I ran a strut on mine with a wet well and it put the prop a bit closer than your stingers will to the transom.
Like you said though, run em first.

[keithbradley]

Battery mount is in. Using a single strap but it gets pretty tight, and is easily replaced if it breaks. Obviously there was a concern of lipo/outrunner contact, but it should be taken care of with this mount.
I'm at about 35% COG with the battery in ,but I still have to add servo and mount, rx, cooling lines, and prop. I should be at 30% or less when its all said and done with the ability to move the battery up if needed.


http://i624.photobucket.com/albums/tt328/keithbradley/100_4569.jpg http://i624.photobucket.com/albums/tt328/keithbradley/100_4571.jpg http://i624.photobucket.com/albums/tt328/keithbradley/100_4566.jpg http://i624.photobucket.com/albums/tt328/keithbradley/100_4568.jpg

[Brushless55]

Man that looks good! :rockon2:

[Jpope]

what motor is that in your boat? i read it was a 2200kv motor, who puts it out? how long is your boat 40 or so and what kind of speeds are you hoping to get out of your motor set up? hope you dont mind the questions, i'm repowering a 43 thundr tiger and im following your build and Brushless55's build to get idea's of power plants to get mine in the mid to upper 40's mark. thanks :popcorn2:

[ray schrauwen]

what motor is that in your boat? i read it was a 2200kv motor, who puts it out? how long is your boat 40 or so and what kind of speeds are you hoping to get out of your motor set up? hope you dont mind the questions, i'm repowering a 43 thundr tiger and im following your build and Brushless55's build to get idea's of power plants to get mine in the mid to upper 40's mark. thanks :popcorn2:

Start a new thread. This motor is much better for a 40" boat: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=11980
Solid motors
Use 5S1P or 5S2P your choice for longer run time with a K51 carbon or m448 prop, T180 esc.

[keithbradley]

what motor is that in your boat? i read it was a 2200kv motor, who puts it out? how long is your boat 40 or so and what kind of speeds are you hoping to get out of your motor set up? hope you dont mind the questions, i'm repowering a 43 thundr tiger and im following your build and Brushless55's build to get idea's of power plants to get mine in the mid to upper 40's mark. thanks :popcorn2:

The motor is made by suppo, you can buy them at Fightercatracing.com. It's small for a 40" boat though. This boat is only 26". I am building a 50" boat right now, though I havent updated the thread much lately. My other two builds have been taking what little time I have. Here is the 50" mono if you want to check it out:

http://forums.offshoreelectrics.com/showthread.php?t=22104&highlight=dragon+hobby

[JackBlack26]

Great build. I bought one of these used from Blackcat. It runs awesome!! I tired it first with a 3424 1800kv castle motor and then put in a 3556 2600kv motor on 4s using 2, 2S packs on the sides of the boat. It was insane!! I may try a single pack like you later on, but I think I like the outrunner in this boat. Long run times, decent speeds and the ability to prop it high if necessary.

Here is a short video of it with the 2600kv motor. It was hard to get a full WOT run, lol.
http://www.youtube.com/watch?v=8q08yfqFhTs