my very first airboat, with PIC's
02-23-2004, 08:59 AM
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my very first airboat, with PIC's
well how is it,, it's made with standard airplane servos, a .19 engine, balsa wood, plywood, and pink styrofoam(for color
), and a 10x6 puller prop,
), and a 10x6 puller prop,
02-23-2004, 09:26 AM
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RE: my very first airboat, with PIC's
VERY nice ....
Might I throw a few suggestions to you ?
The rudder can be cut down a bit ( the size of the prop is usually a good starting point ) and also , by the picture , the angle of the prop to hull looks like you might get some porpoising effect ... ( the nose of the boat bouncing up and down ) . Make the prop angle 90 degrees to the hulls bottom
Next , the foam is good , but , you might want to coat it with something so it doesn't come to peices on you .
Are you gonna run on snow/ice , or just water ( whenever the heck it decides to thaw -
) ?
One more thing ... your radio gear ( Rx and servo's ) , you might want to either "waterproof" them by using something like CORROSION X or put them in a watertight box ( one of those cheapo ZIPLOCK sandwich plastic boxes will work ! )
You get those wet and you loose control ...
Otherwise ... congrats on your new build and best of luck with her .
And most important over ANYTHING .... be CAREFUL ( with that prop ) and have FUN !
Might I throw a few suggestions to you ?
The rudder can be cut down a bit ( the size of the prop is usually a good starting point ) and also , by the picture , the angle of the prop to hull looks like you might get some porpoising effect ... ( the nose of the boat bouncing up and down ) . Make the prop angle 90 degrees to the hulls bottom
Next , the foam is good , but , you might want to coat it with something so it doesn't come to peices on you .
Are you gonna run on snow/ice , or just water ( whenever the heck it decides to thaw -
) ?One more thing ... your radio gear ( Rx and servo's ) , you might want to either "waterproof" them by using something like CORROSION X or put them in a watertight box ( one of those cheapo ZIPLOCK sandwich plastic boxes will work ! )
You get those wet and you loose control ...
Otherwise ... congrats on your new build and best of luck with her .
And most important over ANYTHING .... be CAREFUL ( with that prop ) and have FUN !
02-23-2004, 09:51 AM
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RE: my very first airboat, with PIC's
ORIGINAL: TERBObob
VERY nice ....
Might I throw a few suggestions to you ?
The rudder can be cut down a bit ( the size of the prop is usually a good starting point ) and also , by the picture , the angle of the prop to hull looks like you might get some porpoising effect ... ( the nose of the boat bouncing up and down ) . Make the prop angle 90 degrees to the hulls bottom
Next , the foam is good , but , you might want to coat it with something so it doesn't come to peices on you .
Are you gonna run on snow/ice , or just water ( whenever the heck it decides to thaw - ) ?
One more thing ... your radio gear ( Rx and servo's ) , you might want to either "waterproof" them by using something like CORROSION X or put them in a watertight box ( one of those cheapo ZIPLOCK sandwich plastic boxes will work ! )
You get those wet and you loose control ...
Otherwise ... congrats on your new build and best of luck with her .
And most important over ANYTHING .... be CAREFUL ( with that prop ) and have FUN !
VERY nice ....
Might I throw a few suggestions to you ?
The rudder can be cut down a bit ( the size of the prop is usually a good starting point ) and also , by the picture , the angle of the prop to hull looks like you might get some porpoising effect ... ( the nose of the boat bouncing up and down ) . Make the prop angle 90 degrees to the hulls bottom
Next , the foam is good , but , you might want to coat it with something so it doesn't come to peices on you .
Are you gonna run on snow/ice , or just water ( whenever the heck it decides to thaw -
) ?One more thing ... your radio gear ( Rx and servo's ) , you might want to either "waterproof" them by using something like CORROSION X or put them in a watertight box ( one of those cheapo ZIPLOCK sandwich plastic boxes will work ! )
You get those wet and you loose control ...
Otherwise ... congrats on your new build and best of luck with her .
And most important over ANYTHING .... be CAREFUL ( with that prop ) and have FUN !
also how do you think the way i made the hull (with 2 pontoons instead of a flat hull) will fair in open water,
my dad thinks the motor mount wont hold what do you guys think.
02-23-2004, 09:57 AM
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RE: my very first airboat, with PIC's
About the motor mount ... did you reinforce the bottom ( add a plate- if you will ) for the bolts to travel thru and add strength ?
Meaning .... did you take a piece of aluminum , or wood ( thin ) , and cut it the distance of the width of the sponson for the bolts , from the top section of the mount ( that is viewable in the pictures ) to go thru the foam and thru the plate ? Did you also use fender washers on the bottom part where the nut connects to the bolt ?
If yes , then , IMO , she should hold up ...
If your still in doubt , you could also throw some glass and resin on the mount where it meets the foam for added support .
Oh ... and how will it work in the water with th twin pontoons ? Just as good .... that should not be a problem ....
Think of a Catamaran ( sailboat )... basically same thing ...
Meaning .... did you take a piece of aluminum , or wood ( thin ) , and cut it the distance of the width of the sponson for the bolts , from the top section of the mount ( that is viewable in the pictures ) to go thru the foam and thru the plate ? Did you also use fender washers on the bottom part where the nut connects to the bolt ?
If yes , then , IMO , she should hold up ...
If your still in doubt , you could also throw some glass and resin on the mount where it meets the foam for added support .
Oh ... and how will it work in the water with th twin pontoons ? Just as good .... that should not be a problem ....
Think of a Catamaran ( sailboat )... basically same thing ...
02-23-2004, 10:05 AM
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RE: my very first airboat, with PIC's
ok, i have the darker piece of wood reinforced very well what he and i were worried about was where the motor actually connects to the piece of dark and light wood, im thinking of running 2 or 3 bolts all the way through and then adding a lock washer to the bottom to keep it from getting lose.
what do you think
what do you think
02-23-2004, 10:26 AM
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RE: my very first airboat, with PIC's
I'm kinda with your Dad on the engine stand. If that engine comes off it will cause some pain and a high Dr bill. The rudder can be a lot shorter. I agree with Terbo, make the foam stronger, you don't want that to break while you are starting her.
The props may be small, but they will open a can of whop@$$ on you in a heart beat.
The props may be small, but they will open a can of whop@$$ on you in a heart beat.
02-23-2004, 10:36 AM
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RE: my very first airboat, with PIC's
ORIGINAL: haljmac
I'm kinda with your Dad on the engine stand. If that engine comes off it will cause some pain and a high Dr bill. The rudder can be a lot shorter. I agree with Terbo, make the foam stronger, you don't want that to break while you are starting her.
The props may be small, but they will open a can of whop@$$ on you in a heart beat.
I'm kinda with your Dad on the engine stand. If that engine comes off it will cause some pain and a high Dr bill. The rudder can be a lot shorter. I agree with Terbo, make the foam stronger, you don't want that to break while you are starting her.
The props may be small, but they will open a can of whop@$$ on you in a heart beat.
, lol j/k. im ganna reinforce the motor mount tonight, then ill post more pic's to show what i did,
02-23-2004, 12:07 PM
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RE: my very first airboat, with PIC's
You might have a little problem with water going in the prop, but dont worry about it unless it does happen. I would reinforce the sponson, and the servo will probably have trouble to swing the big rudder, but gotta try it full throttle to find out. Just my 2cents
02-23-2004, 12:29 PM
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RE: my very first airboat, with PIC's
ORIGINAL: rcairboat78
Hey, where is the fuel tank?
Hey, where is the fuel tank?
, i just finished the boat last night, and am going to (excuse my language) niger-rig a gas tank, just because im broke and am looking for a jopb
02-24-2004, 01:54 AM
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RE: my very first airboat, with PIC's
Other than the suggestions that have already been given, I would make one more............use a smaller diameter prop.
A 10-6 prop is much better suited for a .40 size engine. A .19 will have a hard time swinging it at any reasonable rpm and will load the engine down and cause over-heating. Bigger is not always better.
For a .19 engine, you want to be running an 8-4 or 8-5. At the most, a 9-5.
A 10-6 prop is much better suited for a .40 size engine. A .19 will have a hard time swinging it at any reasonable rpm and will load the engine down and cause over-heating. Bigger is not always better.
For a .19 engine, you want to be running an 8-4 or 8-5. At the most, a 9-5.
