Sanshandaobojue's airboat building 2017

A general, non-powerplant specific, discussion on airboat technology, ie., hulls, rigging, polymer, etc..
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Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 3:41 am

Hi, I am plan building my airboat, now it's Sep.2017 , hope I can finish 3 step withing 1 year.

My name Benjamin Zhang Yi, I live in Dalian China. I am Naval architect of ship/offshore design with bachelor degree, usually I design something big( VLCC, bulk carrier, drilling ship,etc.), but not so "small". I have ever work in USA Houston 10years before, I like the feeling of airboat in the shallow marsh water. So now I want make airboat for me and several Buddys.There is no airboat club or any manufacture in China, there is no more than 10 airboats within China as I known and I first saw them in Tianjin China 15 ys before, all of them mainly use for seismic work in shallow sea water.
I couldn't get wide carbon fibre propeller for airboat in China, so I think I will order it from USA in the future, there is some wood propeller for RC plane and powered parachute and I couldn't get big engine more than 300PS or HP, there is only some engine like 1.6L or 2.0T the power is up to 240HP, so I make a plan for 3 steps, base on the experience, finally I hope I can get a power full airboat with 500HP.

Step I, a mini airboat, I have a 10.5 hp diesel engine, air cooling, and with wood propeller 40"x22" for power parachute, aluminium hull 10'x3'.
Step 2, a 100~200 hp airboat, and with aluminium hull 14'x8'. 68"x3 blade carbon fiber CPP propeller, that is biggest propeller I can found in China.
Setp 3, a 500hp airboat, and with same hull in step 2. the propeller shall be 70"x4or3? blad carbon fiber CPP propeller from USA , also the engine from USA.

I know the engine power should fit for the propeller, and every thing shall be calculater first, I have experience in ship propeller design, but I have no knowledge in aero propeller, and how to chose propeller.Hopelly I can finish these 3 step within 1 year. I will update some pic hours later.
Last edited by sanshandaobojue on Tue Sep 19, 2017 9:26 am, edited 1 time in total.

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 4:01 am

I am good designer/engineer of ship and offshore, but mainly work with computer and several times join the seatrial, I have ever designed ship propeller, but I found it's different form aero's propeller. It not means I will make propeller myself, but I should know which propeller is suitable for my engine, 12Hp/3600rpm diesel engine type 188F.
Attachments
tupu.jpg
it is use for ship propeller not aero.

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 4:09 am

I am try to get some V6 or V8 engine like others, so I went to scrap factory. I am really found some engine but in very poor condition, and each one will cost 2500RMB, that is 390 USD, little money, but difficult and high cost to repair them. see the pic below.
IMG_20170910_103915.jpg

IMG_20170910_104018.jpg

I need this diesel oil tank in furture, 15 USD each one.

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 4:11 am

IMG_20170910_113910.jpg

IMG_20170910_113841.jpg

IMG_20170910_112737.jpg

Japanese Nissan V6 2000 engine.

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 4:12 am

IMG_20170910_113916.jpg

IMG_20170910_113926.jpg

IMG_20170910_114010.jpg

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 4:15 am

Japanese V6 3000, and 1 Lexus V8 engine on the top, my Buddy climb to the top, I am warried him falling down.
All the engine is 2500RMB 400 USD, very cheap, But I want get engine some bigger, and better condition.
IMG_20170910_115658.jpg

IMG_20170910_115511.jpg

IMG_20170910_114209.jpg

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Re: Sanshandaobojue's airboat building 2017

Postby SWAMPHUNTER45 » Fri Sep 15, 2017 6:51 am

Your biggest challenge with this will be finding a "gear box" or transmission to adapt for these engines.

The Aluminum V8 used in the Lexus is interesting some Toyota Tacoma owners try adapting them for off road truck use.

A good big block Chevy or small block would be the easiest way to build. That said focus on the next step of finding a method to attach and drive the prop of these small Asian engines.

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 3:27 pm

SWAMPHUNTER45 wrote:Your biggest challenge with this will be finding a "gear box" or transmission to adapt for these engines.

The Aluminum V8 used in the Lexus is interesting some Toyota Tacoma owners try adapting them for off road truck use.

A good big block Chevy or small block would be the easiest way to build. That said focus on the next step of finding a method to attach and drive the prop of these small Asian engines.

I am try to get some Chery engine. I found used Chery LS2 in Guangzhou, price 15k USD. And Ford 6.0L engine also.
812765760.jpg

898029362.jpg
638329011.jpg

which is better? And how much you get this engine in USA?

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Fri Sep 15, 2017 3:41 pm

Fort 5.0L used.
price 25k USD, too expensive.
1742765017.jpg

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Re: Sanshandaobojue's airboat building 2017

Postby SWAMPHUNTER45 » Fri Sep 15, 2017 7:59 pm

Chevy is the most cost efficient.

You can research the gear drives the have names such as Rotator, OX Box, Stinger, Ballistic and Precision.

A fresh 383 small block in the US is less than 10k in the event shipping to China is allowed and cost effective.
Personally with all the internet scams you will have a great challenge finding a vendor to work with unfortunately.

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Re: Sanshandaobojue's airboat building 2017

Postby pipedog » Fri Sep 15, 2017 10:03 pm

Image
Don't know if you can get free shipping to China :lol:
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Re: Sanshandaobojue's airboat building 2017

Postby Aeon » Fri Sep 15, 2017 11:40 pm

17x8 Circle H with a LS3 spinning a oxbox and JX to be complete very soon

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Sat Sep 16, 2017 7:49 am

[quote="Aeon"]you already have a hull manufacturer in china
http://www.abellyinternational.com.cn/
edward.z@abellyinternational.com.cn


And this guy's youtube link,https://www.youtube.com/channel/UCnChneu5xFIz6NPWaNtf05Q/videos

Thanks Aeon, the web site you give to me is a personal website, it is very strange there is only some english website without Chinese website, them are not company, the web site 's phone and fax is one guy's mobile phone.
I make a phone call to him, and he explained he is just a broker, no office, no company, everything is fake, the web site 's picture &video are download from internet, so the guy are cheating you. :( And he have no idea what is airboat, I have to explained to him that i want to order or DIY airboat. :P

The real manufacture web site is
http://www.nollvetec.com/comcontent_det ... tId=2.html
I known this maufacture, one of my friend are working there as manager. They are aluminium subway/high speed train's car's maker. They have ever build airboat 's hull several year before and shipping to USA, that's peanut business compare to building some train's car body.They are not produce now. And the company have new boss last year, I think the new boss like train's car more than airboat.
Last edited by sanshandaobojue on Thu Sep 21, 2017 6:29 am, edited 1 time in total.

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Re: Sanshandaobojue's airboat building 2017

Postby Jason Finser » Sat Sep 16, 2017 12:08 pm

The wider the bottom of the hull, the better. A wider bottom creates less weight per square inch.

If you plan on making a 14' long hull, I strongly recommend going at least 8' wide. 6 ft is way to narrow for a hull that long.

A wider bottom also gives it a much more stable base and makes it safer.

It will also make it much easier to get up on plane in deep water, and make it much easier running dry ground.

You can save some money on the prop. Unless you have over 800 HP you will not need a 4 blade prop. 3 blades will be plenty.


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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Tue Sep 19, 2017 8:22 am

Jason Finser wrote:The wider the bottom of the hull, the better. A wider bottom creates less weight per square inch.

If you plan on making a 14' long hull, I strongly recommend going at least 8' wide. 6 ft is way to narrow for a hull that long.

A wider bottom also gives it a much more stable base and makes it safer.

It will also make it much easier to get up on plane in deep water, and make it much easier running dry ground.

You can save some money on the prop. Unless you have over 800 HP you will not need a 4 blade prop. 3 blades will be plenty.


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thanks I will change my plan with your advice.

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Tue Sep 19, 2017 8:50 am

Today I get the engines which I ordered from Taobao last week(Chinese ebay). Price is 1300RMB(195USD,very cheap) each including deliver fee by logistics. some people will say it is a clone of yamar
It is very heavy 45kg for each, so not by express delivery, but by logistics which I drived my car to pick up the 2 engines, the engine is used for step 1. My buddy want 1 boat also, so I order 2 diesel engine.
The engine is type 188F diesel oil 7kw/3000rpm, 7.7kw/3600rpm, which is 10.5hp.
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Last edited by sanshandaobojue on Tue Sep 19, 2017 9:25 am, edited 2 times in total.

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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Tue Sep 19, 2017 9:08 am

The sad thing is 1 engine's foundation corner is damaged due to transportation and totally broken, how can I fasten the bolts/nuts, shall I return the engine? or can I repair it by welding? the engine 's body is cast aluminium. Even I claim to logistics company, they will explained the seller's package is not strong enough. I will talk to the seller tomorrow, to see how to slove the problem, better return a new engine.

I purchased 4L diesel lub oil cost 95RMB(14.8USD), and 18L 0#diesel oil cost 100RMB(15USD) on the way back. and filled in the engine, release the fuel oil line connection to oil nozzle, to release the air. But I found the speed control is a little difference from the manual, maybe they give me the wrong manual.
mmexport1505823960458.jpg

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Re: Sanshandaobojue's airboat building 2017

Postby pipedog » Tue Sep 19, 2017 9:29 pm

:thumbleft:
Palm Beach open hull 13'9" with 6.0 F.I. LS - Ox Box and a 3bld "R"

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Re: Sanshandaobojue's airboat building 2017

Postby THE NIGHT RIDER » Wed Sep 20, 2017 10:24 am

I dont see that little engine even moving a 14 or 15 ft boat ,id say u need to build a mini airboat maybe 10 ft one seater

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Re: Sanshandaobojue's airboat building 2017

Postby kwanjangnihm » Wed Sep 20, 2017 12:49 pm

Step I, a mini airboat, I have a 10.5 hp diesel engine, air cooling, and with wood propeller 40"x22" for power parachute, aluminium hull 10'x3'.
" I don't care who you are back in the world, you give away our position one more time, I'll bleed ya, real quiet. Leave ya here. Got that? "

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Re: Sanshandaobojue's airboat building 2017

Postby pipedog » Wed Sep 20, 2017 8:43 pm

Benjamin I don't know alot about a mini airboat but I think 3' might be to narrow making it hard to get on a plane
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Re: Sanshandaobojue's airboat building 2017

Postby sanshandaobojue » Thu Sep 21, 2017 6:24 am

pipedog wrote:Benjamin I don't know alot about a mini airboat but I think 3' might be to narrow making it hard to get on a plane


I am still calculation the fitest between propeller and engine, due to the biggest diesel engine of air cooling/signle cylinderi in China is type 188F which is 7.7kw/3600rpm, and that is 10.5hp at 3600rpm, weight 53kg/116Ibs. And biggest wood propeller is 40"x22", price 100USD, and I calculated the speed of propoller. 300/3.14/40/25.6*60=5598rpm. so I will design belt wheels with ratio i=3600:5600=0.64:1 :stirpot:
And I saw a mini airboat case by GgKustomz, maybe he is also in this forum.


and his boat is 25-30 mph and it has a 15hp with a 42x24 prop.motor it turns 3600 rpm, weight 250 to 300lbs.
I want get a mini boat similar as his. and maybe better than him, I notic the propeller is direct drive with speed 3600rpm, that's the max speed of engine, if i add a reduction of belt synchronizing wheel, the higher propeller 's speed, the much bigger thrust force with the same propeller. off course i will increase engine speed step by step during test, to make sure safety, if the propeller not broken.

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Re: Sanshandaobojue's airboat building 2017

Postby THE NIGHT RIDER » Thu Sep 21, 2017 7:08 pm

Yep thats exacly what he needs over there ,they must do the power para there that sounds like the derection he should go

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Re: Sanshandaobojue's airboat building 2017

Postby pipedog » Thu Sep 21, 2017 8:22 pm

Benjamin you don't want to exceed the recommended prop speed, and there is a certain speed that the prop is most efficient.
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Re: Sanshandaobojue's airboat building 2017

Postby pipedog » Sun Oct 08, 2017 7:37 pm

Benjamin how far along are you with your build?
Palm Beach open hull 13'9" with 6.0 F.I. LS - Ox Box and a 3bld "R"


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