315andy

I am building the hull from scratch with quarter inch aspen wood sheeting. I have most of the electronics but i am lost with what engine to use as well as how to get it to turn a prop efficiently. Can you guys help me out? Thanks

Justaddwata

My Feedback: (3)

Welcome to the forum.

1/4" Sheeting is going to be a little on the heavy side.

Best power is going to be dependent on your budget and your performance goals. Zenoahs, Sikks, and RCMK's are by far the most popular and best performing motors but your spending around $200 before buying all the other parts and accessories (mounts, collet, pipe etc).

One popular option is the builder kit from Warehouse Hobbies. Aircooled Motor only - http://www.whhonline.com/product_p/ez23rc.htm or motor and all needed hardware - http://www.whhonline.com/product_p/builderspecial.htm

foodstick

it will be hard to beat the zippkits crackerbox for what you are doing...

MrMikeG

zippkits Easy Vee, cheaper than building your own!
http://www.zippkits.com/

315andy

Well those look real nice but im not looking for anything quite they high end. I just want to build a simple boat and mount my weedeater motor in it and hook up a prop, is that possible? i want to try what this guy did, with the exact same weedeater. http://www.youtube.com/watch?v=JYJ_rNGp9eQ

315andy

What kind of hard ware will i need to get the prop turning is my only concern. Is there an easy way to do it?

martno1fan

Here you go have a read of the link ,if you need the plans send me your email and ill send em over.
As for wood 1/8" ply for most 1/4" for transom and rails.The easy vee is still maybe cheaper in the long run though.
Mart

List for hardware

1/4" flex cable,you can use the square ended one on the trimmer.
ferrule to fix cable to 1/4" stanless stub shaft,needs silver soldering to cable or use loctite retaining compound,fixes to stub with grub screws in the ferrule.
5/16" internal diam brass tube for flex
1/4" diam strut
drive dog,
prop 275 or 280
prop nut(nyloc or zuber nut)
rudder arround 6"
hight torque servo for rudder
standard servo for throttle
throttle cable
make your own engine mounts that incorporate rubber dampers.


http://www.rcuniverse.com/forum/m_54...tm.htm#5452887

315andy

Is there a kit i can order that will have all the prop hardware ill need like your photo?I have all the other things covered, it is just the prop hardware thats worrying me.[&o]

martno1fan

All you need is on the list

warbirdmustang

My Feedback: (21)

Try here:
http://www.aeromarinerc.com/
If you can't find what you are looking for there, try Top Secret boats. I second the easy vee, I'm building one now, great boat and great price. I couldn't cut the kit for the price! I got my hardware from the above mentioned sources, and I'm running a Zenoah G-26 marine stock on a tuned, water cooled pipe.

MrMikeG

Zippkits sells hardware too

315andy

[email protected] is my email. can you help me round up these parts like in your picture?

315andy

Is a quarter inch stub shaft thats 4 1/4 inches long what i need? is that the same thing as a prop shaft? and how does the flex cable from the weedeater fit into the ferrul??and as far as the prop i only found a 70mm Diameter
3.85 inches Pitch prop. it also said 470.

Cope44

Measure the distance between the bottem of your square drive socket on the engine to the rear of your strut. Cut the cable with a dremmel a little more than a 1/4 inch longer than this number. Buy good silver solder and flux and braze the ferrule onto the flex shaft you just cut. Don't forget to soak the newly brazed parts in bakingsoada and water to neutralize the flux. (Overnight should be fine)

Good luck and I know you'll be happy when you toss her in the water. I built a weedeater boat and she rips. She's an OLD Prather hull with a Holmelite 30cc&water cooled head, Proboat hardware and Two inch band tuned pipe. Let know if you want any more picks.

315andy

I just found my old gas powered scooter. Can i use the engine that it has?? Here are the specs- 1.5 HP, 25.4cc, Komatsu Zenoah GZ25N14, single cylinder, 2 stroke, air cooled, gas powered engine . It runs great but will it do the job???

martno1fan

Post a pic but yes zenoah motors are good usually .By the way regarding the flex it fits in the ferrule using either silver solder or you can use loctite retaining compound,the ferrule has a hole for the flex.You need a prop of arround 75 mm 70 mm props a bit small.
Mart
try these places for parts
http://www.zippkits.com/

http://stores.ebay.co.uk/Head-of-the...-RC-specialist

http://www.whobbies.com/

315andy

The motor is off of a gas powered scooter and it could run it about 20 to 25 miles an hour,but do you think it will turn enough rpms to get the prop moving fast enough??