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RE: PICS OF YOUR AIRBOATS - 3/16/2004 8:56 PM   
fishjunky



Posts: 60
Joined: 5/7/2003
Last Login: 5/20/2010
From: Syracuse, UT, USA
Status: offline 		I wish this forum would have been around nearly a year ago when I started this project! Might have had it done by now with this much support out there. At the time I searched all over the place getting ideas for my airboat design and I took a little bit from what I saw and the rest I made up. I still haven't quite figured out how I'm going to mount the control surfaces. It will be powered by an O.S. .40 but I have a feeling I've made it too heavy. Well if it works great if not it's just a prototype ! I will try to get some updated pictures up soon. With these you can see the hull is made from balsa and then I filled it with foam, glassed it and primed... that's where I'm at today. This is my first time building anything RC (unless you count piecing together an ARF plane years ago that I never flew) so be kind but I wouldn't mind any pointers either.

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RE: PICS OF YOUR AIRBOATS - 3/16/2004 9:33 PM   
pro27


 

Posts: 1154
Joined: 9/29/2003
Last Login: 9/21/2004
From: Plainfield, WI, USA
Status: offline 		Many people don't give balsa much consideration because they thing it won't be strong enough.
I have been building my hulls from balsa for well over ten years now and find it not only durable, but very light weight. Don't sell yourself short on what you think is heavy until it's done and ready to run. You may be surprised!

A properly designed hull and inner balsa structure, with balsa sheeting and a FG covering can be just as strong as a heavier ply constructed hull.


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RE: PICS OF YOUR AIRBOATS - 3/16/2004 10:56 PM   
canadianjosh


 

Posts: 253
Joined: 3/2/2003
Last Login: 4/28/2006
From: victoria, BC, CANADA
Status: offline 		Yes balsa and FG is very strong, as is ply, but you always have the problem of water entering the hull and rotting the wood, treated or not. With ply this is not so much of a problem due to the glue used to hold the ply's together. Balsa wood is like a sponge and can absorb water right out of the air. While i wood hulls are strong, i still think foam/FG hulls are superior due to the fact that they will never rot, they have built in floatation, and they are simply lighter.

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RE: PICS OF YOUR AIRBOATS - 3/17/2004 3:59 AM   
revelation



Posts: 33
Joined: 2/18/2004
Last Login: 6/3/2004
From: sydney, AUSTRALIA
Status: offline 		Thunder Tiger .25 9x6 prop. Runs fast but am trying to find a way to keep the nose down at the moment.]

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RE: PICS OF YOUR AIRBOATS - 3/17/2004 4:32 AM   
TERBObob



Posts: 3178
Joined: 1/13/2003
Last Login: 8/8/2009
From: Oelwein, IA, USA
Status: offline 		EXCELLENT boats there folks . They ALL look GREAT !
Now , a balsa boat , if anything , might be a bit on the light side ? Pending one what engine and of course , the size .
Now , REVELATION ,
sounds like you might have a tad too much weight on the rear since by the looks of the prop , the angle of attack is perfect . Sooooooo , you might want to try and shove a washer under the top two mounting screws/bolts to make at the angle more facing downwards . try and use as thin as possible , washers , since it won;t take much .
I should have asked , but rather assumed . When you say KEEP THE NOSE DOWN , are you meaning that she is porpoising ? ( kinda doing a bouncy thingy up and down )
If yes , then the washers is your solution . If she just rides high in the front , the washers "might" do the trick , but sounds like your butt is too heavy ( ) . Seriously ... the transom area might have too much weight .
If at all possible , try moving your motor further forward .
One more question , when she rides in the water , does the back set in the water and not up on plane ?

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RE: PICS OF YOUR AIRBOATS - 3/17/2004 8:13 AM   
revelation



Posts: 33
Joined: 2/18/2004
Last Login: 6/3/2004
From: sydney, AUSTRALIA
Status: offline 		it planes well but anything more than half throttle will make it porpoise alot. The thread i am discussing it in is "almost finished airboat" rather than clogg this thread up with my personal stuff.

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RE: PICS OF YOUR AIRBOATS - 4/3/2004 4:33 PM   
Selph-Inflicted



Posts: 1366
Joined: 3/23/2004
Last Login: 5/16/2013
From: Okeechobee, FL, USA
Status: offline 		Here are a fewof our boats.

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RE: PICS OF YOUR AIRBOATS - 7/17/2006 1:22 AM   
Hughes500Pilot


 

Posts: 32
Joined: 3/26/2002
Last Login: 1/31/2011
From: Anaheim, CA, USA
Status: offline 		I have a Fuji .15 in it. -Steve



< Message edited by Hughes500Pilot -- 7/17/2006 1:24 AM >

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RE: PICS OF YOUR AIRBOATS - 7/17/2006 2:51 AM   
BelieveThePipe


 

Posts: 35
Joined: 10/5/2004
Last Login: 7/23/2006
From: Stamford, CT, USA
Status: offline
quote:

canadianjosh Date 3/16/2004 7:56:14 PM
Yes balsa and FG is very strong, as is ply, but you always have the problem of water entering the hull and rotting the wood, treated or not. With ply this is not so much of a problem due to the glue used to hold the ply's together. Balsa wood is like a sponge and can absorb water right out of the air. While i wood hulls are strong, i still think foam/FG hulls are superior due to the fact that they will never rot, they have built in floatation, and they are simply lighter.


i agree that foam hulls are lighter and certainly will last longer but i find that theres little to none satisfaction of the build. when working with wood you feel the actual boat making process that apeals to me so much as im sure it does to others as well. now when its time to actually run these boats the foam boat can be far superior and will last a long time but hey when the wood in your boat starts to rot it just gives the greatest excuse to make a new one!

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RE: PICS OF YOUR AIRBOATS - 8/10/2006 6:48 AM   
gulfstreamI


 

Posts: 647
Joined: 2/11/2004
Last Login: 7/31/2011
From: Upstate New York, NY, USA
Status: offline 		Here's my airboat/hovercraft.
Kinetics LCAC-1 U.S, Navy replica Hovercraft.


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RE: PICS OF YOUR AIRBOATS - 8/10/2006 6:59 AM   
monstermaker13



Posts: 975
Joined: 3/14/2006
Last Login: 6/8/2008
From: Abilene, TX, USA
Status: offline 		looks good, how fast is it

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RE: PICS OF YOUR AIRBOATS - 8/10/2006 9:48 AM   
Quicksilver



Posts: 842
Joined: 7/27/2006
Last Login: 5/11/2013
From: Poughkeepsie, NY, USA
Status: offline 		nice


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RE: PICS OF YOUR AIRBOATS - 8/12/2006 7:56 AM   
wolfman2


 

Posts: 36
Joined: 12/2/2004
Last Login: 5/28/2008
From: winfield, KS, USA
Status: offline 		those motor stand legs are just like the ones on the Aquacraft airboats that i have you can get them at Tower Hobbies

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RE: PICS OF YOUR AIRBOATS - 8/16/2006 4:51 AM   
gulfstreamI


 

Posts: 647
Joined: 2/11/2004
Last Login: 7/31/2011
From: Upstate New York, NY, USA
Status: offline
quote:

ORIGINAL: monstermaker13

looks good, how fast is it


Not that fast..about 8-10 MPH on water (no wind) .It runs about the same on hardwood floors & asphalt surfaces. The best speed I got out of this hovercraft/airboat was on flat & smooth ice.
It ran about 15 MPH & works best with scale model R/C tanks on the center deck.

Lifting motors: 2 X speed 400's
Drive motors: 2 X 550/600's
Steering: Twin rudders
Power source: Electric... 2 X 3300 maH NiMh, 7 sub C cells (2 X 8.4 Volts)

< Message edited by gulfstreamI -- 8/16/2006 4:53 AM >

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RE: PICS OF YOUR AIRBOATS - 8/18/2006 12:21 AM   
dadkins


 

Posts: 531
Joined: 4/13/2004
Last Login: 5/13/2013
From: Eden Prairie , MN, USA
Status: offline 		Here are a couple pics of "Lightning"

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RE: PICS OF YOUR AIRBOATS - 8/18/2006 12:27 AM   
dadkins


 

Posts: 531
Joined: 4/13/2004
Last Login: 5/13/2013
From: Eden Prairie , MN, USA
Status: offline 		I call this one " Lou II" - And for the life of me I can't remember why. This has - had - to be one of the BEST performing boats I have made. It is Coroplast over pink foam -bonded with gorilla glue after perforating the coroplast. It goes good on every surface including asphalt - of course that was it's ultimate demise.

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RE: PICS OF YOUR AIRBOATS - 8/18/2006 12:41 AM   
Bigboat


 

Posts: 548
Joined: 12/6/2005
Last Login: 12/3/2012
From: Alkmaar, NETHERLANDS
Status: offline 		Some handjob to decorate the boat
BTW, how can I make this pics as a attachment ?





< Message edited by Bigboat -- 8/18/2006 12:43 AM >

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RE: PICS OF YOUR AIRBOATS - 8/18/2006 12:42 AM   
dadkins


 

Posts: 531
Joined: 4/13/2004
Last Login: 5/13/2013
From: Eden Prairie , MN, USA
Status: offline 		This is my plan for "Blue Thunder" A very successful boat. Running a .40 Thunder Tiger.

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RE: PICS OF YOUR AIRBOATS - 8/18/2006 5:27 AM   
ernest2



Posts: 523
Joined: 2/25/2004
Last Login: 3/23/2013
From: antipolo, PHILIPPINES
Status: offline 		dadkins, nice boat! how does cat type run compares to flat bottom? i might build another gasser boat for honda 31cc, and im not decided yet what type to build
thanks!

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RE: PICS OF YOUR AIRBOATS - 8/18/2006 5:11 PM   
dadkins


 

Posts: 531
Joined: 4/13/2004
Last Login: 5/13/2013
From: Eden Prairie , MN, USA
Status: offline 		This cat was a bomb ! it wasn't quite wide enough and the sponsons were to narrow also, so it would stick to the water and IF you could get it on plane - It would tend to dig in side to side - it was Horrible ! I ended up shaving the sponsons off and laminating a piece of HPL (high pressure laminate) ...Formica .. on to the flat bottom. MUCH better !
and.. very durable and slippery.


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RE: PICS OF YOUR AIRBOATS - 8/18/2006 7:17 PM   
asmithnc



Posts: 882
Joined: 2/20/2004
Last Login: 5/16/2013
From: Lexington, NC, USA
Status: offline 		Here are two of my favotite.



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RE: PICS OF YOUR AIRBOATS - 9/4/2006 1:33 AM   
dadkins


 

Posts: 531
Joined: 4/13/2004
Last Login: 5/13/2013
From: Eden Prairie , MN, USA
Status: offline 		Here is a Big Swamp buggy w/ .40 on it .

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RE: PICS OF YOUR AIRBOATS - 9/11/2006 7:02 PM   
bign


 

Posts: 184
Joined: 6/25/2006
Last Login: 7/16/2007
From: High Springs, FL, USA
Status: offline 		thats alot of nice looking boats you guys got posted

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RE: PICS OF YOUR AIRBOATS - 4/18/2010 9:13 PM   
gulfstreamI


 

Posts: 647
Joined: 2/11/2004
Last Login: 7/31/2011
From: Upstate New York, NY, USA
Status: offline 		Andersean - here's that thread I was telling you. I stand corrected with the lifter motors . They were RS 380's or speed 400's (graupner) I dug this thread up from the abyss ....

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RE: PICS OF YOUR AIRBOATS - 4/18/2010 9:19 PM   
Andersean


 

Posts: 57
Joined: 4/16/2010
Last Login: 2/17/2012
From: Riva, MD, USA
Status: offline 		Thanks, can i have the specs on length and width, also how deep the skirt is top to bottom so i can have a general idea of what to do.

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