My First Build, 35" DF Pirate.

[BlackSnakeRacing]

So i will admit, the FE bug has bitten. I have been looking at forsale threads for a while and decided to clear milzee out of some gear. This is a list of what i got:

1x Delta Force 35" Pirate mono hull - New, polished
1x 34"(850mm)x20"(510mm) Carbon / Kevlar cloth
1x 12"(300mm)x4" (100mm)x 2mm Carbon sheet
1x Speedmaster 40 Rudder Assy. with 2 1/4" set back and dual water pick up blade and all hardware
1x 4-40 push rod, 1x Du-Bro HD 4-40 E/Z connector #490, 1x 2pk Joysway waterproof boots
1x Speedmaster 1.5"x1.5" Adjustable trim tabs, 2 pairs
1x Large turn fins -OSE 80066
1x Speedmaster 3/16(.187) Stinger drive assy.- SPDSD-2140
1x 12"(305mm) 9/32 K&S brass tube
1x 24"(610mm) Octura teflon tube to suit 3/16(.187) flex- oct187t-24
1x 24"(610mm) Hu**** 3/16(.187) flex shaft- b6664
1x Octura Coupler 5mm - 3/16(.187)
1x Octura 3/16 drive dog- oc6dm-3/8" o.d
1x Dasboata balanced, sharpened and cupped Octura X445 prop- New with some decals
1x Nylon lock nut, 1x brass bullet nut to suit 3/16 shaft
1x 5mm Thrust bearing
1x 20" 10mm Turnigy heat shrink, red and 20" of black
1x 4pk Great Planes large fuel line clamps
1x 33"(840mm) Large silicon water tube
2x Large OSE water outlets
1x Hatch lift nut, 13x OSE decals
1x PVC boat stand- used

Basically the whole setup except electronics and motor mount. I had a Castle 1717 1580 KV motor that i think will make this boat go pretty well. I needed a motor mount so i removed the mount from my osprey and made a mount out of 2mm carbon fiber the same as the basic mount.


http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00142.jpg
http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00143.jpg

First step i filled the top part of the hatch will epoxy to strengthen and level it a little to make covering it with carbon fiber a little easier.

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00145.jpg

Then i reenforced the whole hull with carbon/kevlar cloth, i did the hatch as well but am adding flotation at the moment so no pics yet.

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00144.jpg

Then it was time to start fitting the hardware. I dont think i have measured and re-measured something so many times in my life. I started with the hatch lift nut and water outlets

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00150.jpg

Then i started with the transom mounted hardware

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00149.jpg

[BlackSnakeRacing]

I made a noob mistake when marking it out, i had the rudder and trim fins to close so i couldnt get either to mount up. By the time i realised it was to late i had already drilled all of the holes...

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00149.jpg

So out came the grinder and file and i made it all fit

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00160.jpg
http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00161.jpg

Completed Transom

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00158.jpg

[BlackSnakeRacing]

Next i started on the battery/esc/rx/bec mounts, all made from 2mm carbon fiber. While doing these I also made my motor mount side plates. I put the flow through holes in for the epoxy, but only 4 will be used s flow throughs. The others have hd some 4-40 rod epoxied in place to give the mount a little more strength in the mount.

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00154.jpg
http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00155.jpg
http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00156.jpg

Now i am down to sorting out the positions of everything to get the COG right, so far this looks like what i will probably go with, its giving me 30% with the packs where they are and can get them back for 24% if i need to. I can get the COG to 32% but thats with everything really squashed up

http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00157.jpg

[lenny]

It's a little late now,
But I would put the motor closer to the transom.
Than you would have a lot less flex shaft to deal with,
And a lot better CG to work with the cells.
What cells are you going running with that setup ?

[BlackSnakeRacing]

It's not to late yet mate, thats why i posted the thread now, everything is still in mock up ;)

Its mocked up with turnigy 3S 5000mah packs, but will be running with Nano-tech 5000mah 3S in series for the moment, if i want to sport run i will be running Turnigy 6S 5800mah, but that requires me to move my rx/bec/esc, but everything is velcro mounted and trays are inline so it is possible to adjust to both setups.

My thoughts with the long flex is that it allows me to get the COG but keep the batts low in the hull, i'm setting this up for mostly speed runs.

I'll take any advice that wants to be given, an feel free to correct me on anything i have done as much research as i can but still know sweet FA bout FE

[BlackSnakeRacing]

have had a bit of a play around, this set up allows me 30-27.5%COG with the 3S packs, 6S packs there is no chance for the COG. The tube is around 4.5" long...
http://i1201.photobucket.com/albums/bb356/tigercoastal/RCs%20i%20play%20with/Delta%20Force%20Pirate/CAM00162.jpg

[KartRacer]

Hi blacksnake
What is the status of this build? I have run mine several times and might have some suggestions if not too late,

[BlackSnakeRacing]

the build is finished just waiting for a chance to maiden it, but nothing is set in concrete so i can cut things out and move them if needed... Have gone with the layout in the last pic, was planning to update the thread after the maiden.

What would you suggestions be?

[millzee]

Looking good mate, get it in the water and work out what needs doing from how it runs, don't get messed up with listening to everyones "opinions", it'll only confuse you and prolong your venture to an awesome boat. You know what to do, make it rip!!!

[KartRacer]

the build is finished just waiting for a chance to maiden it, but nothing is set in concrete so i can cut things out and move them if needed... Have gone with the layout in the last pic, was planning to update the thread after the maiden.

What would you suggestions be?
I don't disagree with Milzee. But I found that my hull ran too wet. So running closer to 28 to 30 cog is what I found to be closer. I had to move by 6s 2p up and back to get that. Good luck let see your results.

[BlackSnakeRacing]

I don't disagree with Milzee. But I found that my hull ran too wet. So running closer to 28 to 30 cog is what I found to be closer. I had to move by 6s 2p up and back to get that. Good luck let see your results.

I'm running half the battery weight that you are, a faster and bigger motor which will make alot of difference to the way the hull runs on the water ;) Where i have the packs at the moment i can get 27.5-31% COG. I have done a little testing with the leo 4092 1600kv and the 1717 1580kv in my osprey and need to run the COG way forward with the 1717 to keep it on the water with the same stinger position and prop. I'm trying to keep the weight down, i prefer blowing everyone at the pond away with SAW runs than sport/circuit running.

[keithbradley]

If you really want to make SAW runs, set it up for 2p. Anything near a real SAW setup will easily puff 4000mah lipos, and voltage drop will be an issue.

[BlackSnakeRacing]

Its not a full on SAW setup, it is conservatively propped and launches when already on a plane. So far i have run the same setup on my osprey without puffing my packs (not saying it wont happen), am just trying to build on a budget with what packs i have available to me. In the osprey the packs come out a little warmer than ambient but no puffage yet. The 4000mah packs were only put in for the pics, i'll be running 5000mah nano's. At the moment there is nothing at the pond that comes close to my osprey, am hoping that i can get this a little faster and encourage a few of the boys to start getting a little more serious.

[keithbradley]

Its not a full on SAW setup, it is conservatively propped and launches when already on a plane. So far i have run the same setup on my osprey without puffing my packs (not saying it wont happen), am just trying to build on a budget with what packs i have available to me. In the osprey the packs come out a little warmer than ambient but no puffage yet. The 4000mah packs were only put in for the pics, i'll be running 5000mah nano's. At the moment there is nothing at the pond that comes close to my osprey, am hoping that i can get this a little faster and encourage a few of the boys to start getting a little more serious.
Ok, I think I just took your SAW comment a bit too literal.
I actually like the motor forward setup for a boat this size, but both work. Have fun with it and post some vid!

[BlackSnakeRacing]

Yeah its not a SAW boat, i just like to be faster than everyone else for the moment and on a budget ;)

I run motor forward on my osprey and have to have my packs beside the motor to get COG, i wanted to keep my packs as close to the center line as possible to keep a low COG as well.