how to carbon fiber my hull?

[Taylor]

thank you chuck that info was very helpful now as far as teh cog goes lets say i mount the motor further back to the transom like 4-5 inches and put the batteries behind the motor can they not exceed the 10.5 inches to have a good cog thats what confuses me about the subject i just cant grasp where things should go and what type of adjustment this does to the boat

[Chuck E Cheese]

well lets say the cog is 10.5 (30% on a 35" hull). that is where the boat should ballance ready to run. so if the motor is behind the cog you will need to counter that weight in front of the cog. usually on a rear motor set-up the batteries will go in front of the motor and esc/rec/servo in the rear. here is a picture of what i mean (#1). on the other hand, depending on the batteries and how heavy they are they might need to go on the sides to get the ballance (cog) right (#2). in the first picture i could mount the battery in front of the motor because i am only using 1 5000mah pack. in the second one i wanted a total of 8000mah so i had to put them to the side to get it at 28%. in the second picture i could have moved the motor back further but it still would require the batteries on the side and there would have been no room for the servo

hope this helped. search the forums for "motor placement" or "ballance" and you should find some good info. i am afraid if you search "cog" it wont help much because every thread talks about "cog"

[Taylor]

ok so after placing complete hardware and electronics in the boat fully loaded at the cog point it should balance?

[Chuck E Cheese]

yes. it is Center Of Gravity that is where it should ballance front to rear.

[emil82]

You can buy polyester and fiber for cheeap at a store like Biltema (a car/boat/building parts supermarket)