Project "Bad A*$"

[Basstronics]

This project is back on for an end of season-winter build.

42" Osprey mono
http://www.hobbyking.com/hobbyking/s...g_n_Drive.html
HK 5692 (TP Power) 1320Kv
ESC: Undecided as of yet
Batteries: 8s by way of (4) 4000mah 4S1P (intending- open for debate) I may go 6S also. I know Im a little high on Kv but can adjust with smaller prop.
Prop: Undetermined
Propshaft: 1/4" cable/propshaft with a step down to 3/16"

G0ing to get a 1/4" Speedmaster drive one order. Undecided on gas vs nitro version as I cant figure out what the difference is???

I removed all the hardware. Theres wooden rails added. Nice fiberglass servo mount and some unknown wooden structure behind it. Going to clean her out and put a new piece of wood on the transom then cover it all with carbon/kevlar.

[Basstronics]

Worked started this weekend.

[srislash]

Worked started this weekend.

So you got it dusted off okay Just kidding ya,glad to see it on the go.

[Basstronics]

Not sure how to get that piece of "sponge wood" off the transom. I would like to replace it with a piece of 1/4" Lauan plywood. Its seen two struts and about to get a third and final.

Any idea what that wood structure is by the servo mount?

[ron1950]

maybe it held the reciver?

[srislash]

Not sure how to get that piece of "sponge wood" off the transom. I would like to replace it with a piece of 1/4" Lauan plywood. Its seen two struts and about to get a third and final.

Any idea what that wood structure is by the servo mount?

For the "sponge wood",I would use a dremal,course sandpaper,vaccum,and patience.The flapper wheels are handy for this.Maybe the sanding Drum.

[martin]

As you mention thats a lot of rpm on 8s for a motor & boat of that size @ 39000 unloaded.

[Rumdog]

Martin is right. I'd definatey run it on 6s2p with a big prop.

[Basstronics]

I might reconsider on the motor end then. I got $100 tied up into it and should be able to get that back.

[ray schrauwen]

I'd leave that white stuff in the transom and just add a layer of CF over it. The only piece of hardware to stress the transom is the rudder and it has a large foot print. It's the only thing needing backing.

If you do add wood, make sure you can get bolts long enough to make it through.

[Basstronics]

I got all the wood stringers and crap out of the hull tonight. I need to do some fine grinding of the leftover resin glue before heading to the sanding block.

What is that stuff on the transom? Resin soaked spongue?

[iamandrew]

Let me know how you go with this! ive got the same hull and motor, but its a 1700KV one i was going to try and run on 5S

im stuck with the placement of the motor and batteries tho

[ray schrauwen]

Put the motor in the back and batts in front. Seems to make things simpler for CG adjustments but, it's just a preferrence. Shorter driveline is more efficient imo.

Thats what I did with my 40" mono and, I'm switching my DF33 this winter to the same thing. I don't like the motor up front anymore.

[Basstronics]

I got that pesky crap off the transom. It appears to be a fiber type substance. A little heat and some pulling with needle nose and she came out fairly easy.

My issue with just trying to cover over it was how wobble it was. Wherever a washer/nut was was sucked in to far also IMO. So out she came.

Now to make a proper wooden transom and get it epoxied in place. I got some Lauan wood used for underlayment of vinyl floors. However it seems to be rather cheap wood. Think I will check my aircraft grade plywood stash and if I dont have it buy it. I think 1/8" should be plenty as its going to get carbon/kevlar covered.

[srislash]

That looks like aweful stuff.