oriental dragon
 

Hi . I have ordered an oriental dragon hull.Mono 1 with flood chamber and nonstepped mono hull It's length 565mm width 180mm height 60mm. I need advice on setting it up to race, but I can only run 7.4v lipo battery. as per club regs. I need a fast small motor. So friends send me your ideas, ( truefully please.)
cheers wayn.

RE: oriental dragon
 

I am building one now...i'm using a Feigao 380 8L, an ETTI Navy 70 amp ESC, Speedmaster stinger and sm. rudder (both will be cut down) and a pair of PolyRC (Enerland) 2S1P 25C 3300 Lipos (run in Parallel). I am also using the ETTI watercooled motor mount....

Hope that helps out some!

I'm not sure about the race requirements that you are asking about...

I have a build thread started on Offshore Electrics Forum... "Kent's ETTI Oriental Dragon Mono Build". Check it out...

-Kent

RE: oriental dragon
 

Thank you for the info Kent You mentioned that your stinger and sm. rudder are to be cut down, to what length are you looking at. I read some where about that the stinger length should be 10 to 13% the length of the hull. I stand to be corrected if Iam getting mixed with some thing else.
Also Kent what's the COG that you are planning to use.? I also read that you can go by the theory of 28% of the hull length for the COG. If I'am worng please correct me.
I have just about finished my 25" Boogieman boat using those theories and the ballance is great.
If any one else have different way's of working these measurements,please post, as there are a lot of us just getting into the FE boats that would be interested.
Cheers Wayn

RE: oriental dragon
 

The stinger will be cut down to about 2 1/4"...so yes that is roughly about 10% of the hull length. The rudder will have about 1/2" to 3/4" taken off of the bottom (I am also rounding off where the bottom and leading edge of the rudder meet. That will help cut down on some unwanted lift and drag.

The motor will be placed right around where the front of the hatch opening is (just about in the middle of the hull) and the lipos will be placed in the rear...closer to the flood chamber wall. With that setup, my CofG is between 28% and 30%.

One thing you should think about doing (if you have not done so already) is add a plywood doubler. Epoxy it to the inside of the transom and then seal the wood with epoxy. This makes for a stronger transom and also gives you a place to use blind nuts to mount the hardware with if you would like.

One more thing...you will need to drill some holes in the flood chamber towards the FRONT of the boat...in the deck AND OR in the side/ underneath. This will help let air escape from the flood chamber so the water will rush in and the boat will self right more efficiently.

-Kent