Simon's 30"mono build

[Simon.O.]

I ran the power system today, in a test hull. Old Academy Sea Dagger 29" ABS hull
Well modded by me.

Chinese 9XL with no water cooling
Flightpower 4900 4S
Super Simple 100A ESC with cooling on the top plate.

M440 Good hook up and happy speed
X637 Better hookup and happy speed
X642 Ok hookup and serious speed

Need to try a 447 cf prop I found later.

My findings tell me that I will need to cool the motor for anything over a 440.
That is fine as I have a solid jacket ready to go on there

All of the wood is now sealed and now is the long process of curing the varnish between coats.
I want 3 full coats on there before I go for colours.
YES!! This one will get painted...................colour to be chosen, but I am leaning toward a very bright green with black trim.

I hate painting

This will get wet soon !!

[Gerwin Brommer]

Simon :

for example : red for the upperdeck, yellow in bottom.

[crabstick]

The sea dagger would have not known what hit it

you got the Chinese 9xl

How is it ? have you replaced the bearings

[Simon.O.]

The sea dagger would have not known what hit it

you got the Chinese 9xl

How is it ? have you replaced the bearings

The SD had the 7XL out of the big rigger in it once
It has a Simon style stinger out the rear.

The Red 9XL is fine so far. Very smooth and no lateral play in the bearings, yet.
It got midly warm on a M440 and a 642 strated to heat it up a bit, not hot though.
A cf jacket is being made this week.

[Simon.O.]

Progress today

Canopy made and sealed
Water jacket for motor made, to be fitted tomorrow.
Rudder linkage made and ready to fit.

Here are a couple of pics as it sits now.
The canopy needs 2 more coats of varnish to seal it properly.

I am not sure if I want to paint this one.

[norbique]

Hi Simon!
Nice canopy, and nice boat!
What kind of varnish are you using?
Do you also use varnish to seal the inside of the boat?

[Simon.O.]

Norbert.
The varnish is a Wattyl clear, that is what the can says but I think my father may have put a tint in it a while ago. It is an old can.
The other varnish I use is a Cabots clear.

The canopy will get a couple of coats of the clear so will contrast a little with the darker deck.
Given the different grain directions of the deck it looks really nice in the sunlight.

I'll get it outside for some pics once all the HW is polished and fitted.

[tylerm]

Sh*t hot simon, it looks good. Good to hear on the chinky XL, my one ran in a cambell un cooled and it was burning, so maybe its a hit and miss sorta thing. At thats price you could afford a dud or 2.

Ty.

[crabstick]

Simon, Looking shiney man! how did the flood chamber testing go ? or you still waiting to do that ?

on the chinese HTX Xl's etc . they are no longer the same motors as when you got yours I think Tyler. I just got an 8S and its a KB36, not KD36, the endbells are silver not black and its almost identical to my Fiegao, apart from the wire.

[Simon.O.]

It has been wet and goes well so far.
The flood chamber does not flip it back over......yet.
It ran a little wet but I will work on that.

Setup
Bow to transom length 30" 760mm
Width 8.5" 215mm
Cg 10" 250mm 30%
Shaft centre line is 8mm above keel line and 0 deg
Prop is setback 4.5" 105mm 13% of hull length.
Rudder Te is inline with drivedog and it turns very well, at wot will skip a little in the turn but I 'll sort some of that later. On the straight it sits on the keel like a knife edge but a bit nose wet for my liking

This is my main concern so I have added a pair of lift strakes to the bottom to see if this will get the nose up a little more.

A few pics of the HW as it is now, and the strakes. Glue is drying

[tylerm]

Simon do you have air release holes and holes on the side of your floodchamber? these are essential. My OM would not right without them.

[Simon.O.]

Simon do you have air release holes and holes on the side of your floodchamber? these are essential. My OM would not right without them.

Tyler, there are air release holes at the front of the FC in the bottom.
This thing is just too bouyant (big/light) and too flat on the top.
I am not keen to have one of those dufuss looking canopies that are made for the SV27 to help with righting either.
I will see how the boat runs once I air it out a little and if it does flip a lot then I will sort the FC out.
For now it will be a tow upside down like all my other boats, especially the canard.

[tylerm]

You need holes along the side as well, let me see if i can find a pic. It will not self-right without holes along the side.

[tylerm]

haha AM radios FTWhttp://picasaweb.google.com/lh/photo...eat=directlink

[Simon.O.]

You need holes along the side as well, let me see if i can find a pic. It will not self-right without holes along the side.

Tyler, it has vent holes in the botttom as that becomes the top when it is playing possum.
There is a row of flood holes in the upper deck to let the water in plus the obvious one in the rear.
I have spent a bit of time on this one in the neighbours pool and the bottom line is the bugger is too bouyant and stable while upside down,.....for now.

I do know a bit about vessel stability as I have salvaged/refloated more than one, full size that is.

Trust me a trimarran upside down is one of the most stable things I have ever seen on the water. A royal pointy thing to get upright too.

I am not putting a lot of concern into the flood chamber on this hull.

I want to get it running well first.