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Old Mar 05, 2013, 01:14 PM
I ask a lot of questions.
Canada, AB, Airdrie
Joined Aug 2012
211 Posts
Discussion
$tree Airboat build...need advice

Hey y'all

Since it is too windy and snowy to fly, I decided to build something to stay on the ground. My "HCIW Airboat V1" (HCIW = Holy Crap It Works)

**I also posted this in the BOATS section of RCG**

Material: DollarTree Foamboard
Motor: HobbyKing BluWonder 1700 KV outrunner
Prop: 7X5E
Battery: 2S 1000mAh (It can fit any size battery needed)
ESC: 12amp HK esc
Servo: 9gm something-or-other
Rx: Orange RX

To be honest, I had really no clue what I was doing when I started. I don't know alot about props/motors/batts and all that stuff, so any advice and tips are more than welcome.

On my initial testing, I did learn that airboats tend to lift the bow off the ground ( and back-flip) at higher speed. I don't know if that can be compensated for with adding weight to the bow or not. I'm also not very pleased with control response from my single rudder...next build will have dual rudders. I think my single rudder is not getting enough airflow due to the wide pylon motor mount obstructing airflow.

So here is the part where I need some input from experienced builders as I move on to building v2 of this:
1) Prop selection
2) Rudder design and placement
3) Motor and prop placement (is further back better?)
4) Hull design changes needed?

So here are my pics of what I have as my "HCIW Airboat V1" (ignore the green tape...)

Cheers,
Stew

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Old Mar 05, 2013, 01:28 PM
Registered User
United States, OR, Tigard
Joined Dec 2012
90 Posts
Might want to take a look at this guys build:
airboat (2 min 23 sec)


http://www.reddit.com/r/radiocontrol..._ii_video_223/
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Old Mar 05, 2013, 01:35 PM
I ask a lot of questions.
Canada, AB, Airdrie
Joined Aug 2012
211 Posts
Quote:
Originally Posted by jhiggy View Post
It doesn't really answer any of my questions. But I am glad you posted it I wish he had some designs or details posted.
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Old Mar 05, 2013, 01:35 PM
Life begins at 40
addictedtoplanes's Avatar
Canada, ON, Guelph
Joined Jun 2012
683 Posts
Subreddit for RC?! WOW!!!!!!!!!!!!!!!!!!!!
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Old Mar 05, 2013, 01:51 PM
Registered User
United States, OR, Tigard
Joined Dec 2012
90 Posts
He has some of your questions answered on the reddit comments.
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