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Cheap unsinkable airboat
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📝 Cheap unsinkable airboat
20 days ago by 🇳🇿 jbkiwi (
Fleet Admiral)
Fleet Admiral)✧ 66 Views · 8 Likes · 4 Comments
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For a bit of fun i decided to knock up another airboat for rescue and camera work. made from a $19 body board with a 3542 1000kv TGY outrunner running on a 4s Lipo, with a 10x6 pusher prop. Went fairly well on it's first test using only about 30% power, but needed some up thrust and rudder trim for much more throttle. Probably needs some small bottom strakes to limit the drifting tendency and make it easier to control, (did this with the first airboat which manages 30kph)
Could quite easily run on 3s for more economy, as it planes very easily. I got 20mins almost continuous running at the speed in the video, (on 30%) which is more than adequate, as it would be just idling around for videos. Quick to make and lots of fun. Motor mount screws onto 4 -30mm dowels epoxied into the body board.
JB
Could quite easily run on 3s for more economy, as it planes very easily. I got 20mins almost continuous running at the speed in the video, (on 30%) which is more than adequate, as it would be just idling around for videos. Quick to make and lots of fun. Motor mount screws onto 4 -30mm dowels epoxied into the body board.
JB
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💬 Re: Cheap unsinkable airboat
17 days ago by 🇺🇸 jumpugly (
 Admiral)✧ 20 Views · 3 Likes
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Cool JB!!!!!!!!!!!
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jbkiwi
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Remove Ads 💬 Re: Cheap unsinkable airboat
17 days ago by 🇬🇧 zooma (
 Vice Admiral)✧ 16 Views · 2 Likes
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Not a lot of cheap body boards around here JB - but yours looks really good.
My first ever airboats were home made from balsa wood and powered by a Cox BabeBee 049 glow motor. Airboats (like hovercraft) do have a strange drifting way of steering, but they are great fun - and your looks really good 👍 Bob. ▲
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💬 Re: Cheap unsinkable airboat
19 days ago by 🇳🇿 jbkiwi (
Fleet Admiral)✧ 53 Views · 3 Likes
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Thanks Steve, just a quick build, no hull to make, only took about a week all up, - still has a way to go to find its' max performance before 'V1'😀. The first one was pretty uncontrollable till I put the strakes on, and this one is no exception. It's like steering water on a hot pan, just breathe on the rudder stick and it spins. I deliberately reduced the motor power on the new one, (max 660W) as it's a lot lighter than the first glassed ply job, and would probably take off using the the other max 1600W motor. The first boat is only running a 3s LiPo for 30kph, but can take a 6s. It would be faster but the noise would be ear splitting with the smaller prop required - bad enough now!
JB ▲
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💬 Re: Cheap unsinkable airboat
19 days ago by 🇦🇺 stevedownunder (
 Commodore)✧ 61 Views · 4 Likes
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Hi JB,
Nice air boat. Cheers, Stephen. ▲
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