RE: Dumas air boat questions
The BSB was built/designed with a lot of upthrust on the engine. Because this is a tunnel hull, this was done to keep the bow down and not let the hull blow over so easily. With the power available in the days the hull was designed, it worked ok. But by today's engine standards, the more powerful engines will dig the bow into the water. An option may be to try and reduce the amount of up-angle built into the mount if possible, instead of trying to counteract it by adding shims. If the pylon mount is bolted to the hull, unbolt it and sand down the front of the pylon feet so the angle of attack is reduced, then bolt it back down. If the mount is glued in place, try to cut out the plate the engine is bolted to, and re-glue it in place at a lesser angle, or neutral angle. Just a couple things to try.
Posted on: 9/8/2004 12:56 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2156780

RE: New Boat whoops...!
Sure............try to confuse people by having the pic backwards [>:][:D] Looks good . Let us see how it runs with that 'left hand exhaust' [;)]
Posted on: 9/8/2004 12:45 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2156766

RE: Where to put the rudder?
Being from the UK, I know you guys run different types of hulls as we do here in the states. Is this hull a Multi style hull? Can you post a pic or two?
Posted on: 9/8/2004 12:41 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2156758

RE: Swamp Buggy woes
Being a tunnel hull, you may want to try a turn fin (as long as it will only be run on water). To make it work equally to turn in both directions, mount it to the hull bottom, about 1/3 the hull length from the transom (or...slightly behing the cog). Make it, so when you look at the hull from the side all you can see is a portion of the fin about 1/2" tall and about 2" long. The actual size will be bigger due to part of it not sticking out below the hull bottom. A simple way to make one would be to bend a piece of brass strip into an 'L' shape and screw it into the hull bottom.
Posted on: 9/8/2004 12:21 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2156721

RE: im kinda cheap...
you might want to ask around on some of the other forums.......
Posted on: 8/22/2004 1:26 PM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2107400

RE: so, airboats seem cool. how do i make one
SORRY......[:o] I was asleep at the time..
Posted on: 8/18/2004 12:15 PM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2096149

RE: how about a ducted fan airboat
There were plans for one published back in 1984 ??? in an issue of Flying Models magazine by Bob Aberle. At the time, I think it was an AX40 fan (very early in the DF scene). He had some positive results. With today's available power output and DF design, the improvement should be great for an airboat. I would suggest trying to track down the article and starting from there. If you go through some of the older threads here, you should be able to find what issue it was published in, as I have posted it before, but my memory is drawing a blank at the moment.......
Posted on: 8/18/2004 9:30 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2095715

RE: so, airboats seem cool. how do i make one
Areas need to be cut out into the foam to allow wooden members to be glued into the foam for the most strength. This way the piece will also be flush with the surface of the foam. It could be cut out by hand, but a much easier way is to use a router. Dadaddyro has some pics of this process at www.rcairboats.com that should answer a lot of questions.
Posted on: 8/18/2004 9:25 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2095691

RE: so, airboats seem cool. how do i make one
dadkins......now that's thinking...........let us know how it comes along. What to use for bonding the coroplast to the foam..epoxy???
Posted on: 8/17/2004 1:31 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2092021

RE: How much is it worth?
A lot will depend on the brand of engine, engine size, brand of radio as well as appearance and integrety. It could go for $100 or you could get $200 for it. More depends on you want out of it.
Posted on: 8/11/2004 2:08 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2074137

RE: please help. twisted hull
Being that the structure in an enclosed structure, If it developed a warp that severe over a very extended period of time, you won't get it out. Try running it the way it is and see what it does. If it stinks....you can build a better hull for about $20 bucks of foam and epoxy with a bit of ply thrown in [:D]
Posted on: 8/11/2004 2:03 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2074130

RE: big swamp buggy cg
Around 30% is a good place to start. Depending on the hull style, it could go as far as 35%.
Posted on: 8/11/2004 1:57 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2074124

RE: First build need a little advise
Good looking hull you have there. And by the looks of your construction pictures, it's very well made. I would also suggest trying a different size prop. A 19 turn motor sould be able to swing one of pretty good size. But I doubbt it will work with your current mount set-up. But you could easily modify it to be a bit taller to be able to swing a bigger prop.
Posted on: 8/7/2004 10:56 PM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2064177

RE: Gasser on the water
Looks great Hal.....[8D] Could you take a few pics of how you have the throttle linkage set up? I don't remember what engine you're using, but it looks alot like my Q42, so however you have the throtle link hooked up should help me out with mine. Also.maybe a few pics of the rudder system you have aet up also? PLEASE.........[:D]
Posted on: 8/7/2004 1:37 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2062108

RE: Any AMSTERDAM (Or her sisters) Builders?
Try this... Hobbico MasterMask , part #HCAR3410 Bob Dively Liquid Masking Film, #DIVR3000, DIVR3010, DIVR3020 Parma 701 Liquid mask, PARR5000 Those are all Tower Hobbies stock Numbers There are also other makers of the stuff here in the US. These are just a few...... There are very few LHS that I have gone into over the years that DOES NOT carry one brand or another. Just ask for liquid masking film. If the guy behind the counter doesn't know what you are talking about, then they need to find a job better suited to them and their hobby experiences.....[;)]
Posted on: 8/3/2004 11:54 AM by Author "pro27" in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=2049816

RE: motor mounts
Servo's will come included with the radio system when purchased. As far as a rudder and other components, there are no commercially available parts for munc of the stuff we use. Some small items are used from the model airplane community while the vast majority of parts are home made. The motor pylon mounts dadaddyro mentioned are very good and are used by two different manufacturers for their kit boats (AquaCraft and Dane's Hobbies). Besides the nylon mopunts, you will have to make or purchase the wooden platform that the engine sits on. This is also anAquaCraft item that can be purchased from Tower Hobbies. If you go to the listing for thr Air Force, you can get to a page that lists replacement parts for this particular hull that could be used for a hull of your own design.
Posted on: 8/3/2004 1:57 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2048879

RE: First build need a little advise
A clear polyurethane varnish will also work to preserve decals (stickers) on the hull, as well as giving an added fuel-proofing coat to the paint job.
Posted on: 8/3/2004 1:51 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2048868

RE: rudder
If you do a SEARCH in this forum on 'rudder' you should come to some posts that show several of my rudder set-ups that were posted a while back. Also pics and a little description of them.
Posted on: 8/3/2004 1:29 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2048828

RE: First airboat
If you click on the GALLERY button at the bottom of this post, you can see several of my 1/2A airboats. They all use non-throttled engines. One servo is all that is needed for rudder control so the radio system is light. I also use 2/3a nicad battery packs for the receiver instead of the 4-cell AA holders that the radios come with. Much lighter and smaller. All my 1/2A hulls are of all built up balsa construction and are covered in Monokote airplane covering. You can see a sequence of pics of my latest hull at the following link.... http://rcairboats.net/v-web/bulletin/bb/viewtopic.php?t=26 This is not a typical hull....an experiment in design, but a hull of similar size and conventional shape like those posted in the gallery is an easy build. Feel free to ask any questions you may have, but be sure to look at the pictures first, as they will answer a lot of your questions by themselves. For size, these are all in the range of 18" long and 8" wide. (approx 450mm x 200mm)
Posted on: 8/3/2004 1:26 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2048823

RE: "Bigger and Ugly-er Big Red
Looks good there. Was that at WOT ? Or were you just getting the feel of it?
Posted on: 7/31/2004 1:47 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2040187

RE: Lets see what airboats you have!
Click on the link below. There are only 8 of my hulls shown there. Three more have yet to get posted whenever I get around to it. http://rcairboats.net/v-web/gallery/Pro27s-collection?page=1
Posted on: 7/30/2004 1:27 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2036982

RE: Check this out!!!
[size=4][/size]WOW............ ya did it again, only this time goingin the other direction [:D][:D] Maybe I spoke too soon hah........
Posted on: 7/28/2004 12:37 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2030277

RE: Scale Hydro Airboat Update - Finally
Slayer.................it's good to see you back. It's also great to see that you have not given up on this project. I'll be waiting to hear your running report.
Posted on: 7/26/2004 12:45 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2023639

RE: Any AMSTERDAM (Or her sisters) Builders?
[sm=lol.gif][sm=lol.gif][sm=lol.gif] Only those of us that have been there have the right to laugh at that........ I feel for ya doc....
Posted on: 7/25/2004 5:39 PM by Author "pro27" in the forum "RC Scale Boating"
http://www.rcuniverse.com/forum/fb.asp?m=2022466

RE: Big Ugly Red
hEY DADADDYRO................. another green boat.......[X(][;)] [:D][:D][:D][:D][:D] Just HAD to get that in there.........[:D][:D] lol
Posted on: 7/25/2004 5:35 PM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2022453

RE: Going to my local hardware store to get....
cjs...........what a co-inky-dink............ Check it out....speed 400 and 7 Sanyo KR-600AE cells, GWS ICH400 esc, all homemade hardware, 1/32" wire drive. Ned Schmidt (he's on microhydros) made up the coupler for me. BTW....it's up for sale.............
Posted on: 7/25/2004 1:27 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2020995

RE: Do you need to cover blue board?
You will not need a whole lot. When it comes to surfacing or glassing, a little goes a long way. Dadaddyro has a good explanation on how to...........here............... http://rcairboats.net/v-web/bulletin/bb/viewtopic.php?t=49
Posted on: 7/23/2004 10:58 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2016315

RE: Big Ugly Red
Another picture.........
Posted on: 7/23/2004 2:55 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2015684

RE: Big Ugly Red
Is that an MDS on there??? I agree with Keith's comment........ Where the horn is located will put stress on the rudder and servo and also limit the throw to the rudder. By moving the horn closer to the rudders pivot point, the rudder will be more free and stress free. Line up the holes on the arm with the pivot point and it will work a lot better. Here is a pic to show what I mean.........
Posted on: 7/23/2004 2:50 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2015681

RE: Do you need to cover blue board?
I go along with dadaddyro. Glassing it over adds at least 200% more strength to the hull. In essence, forming a shell. For a low powered hull you may have no problems with durability. But then there is always the ever present dings and dangs that happen just in handling the hull that can surprisingly damage the hull to a point where it has weak spots. I'd hate to see a hull disintergrate on the water going wide open.
Posted on: 7/23/2004 2:25 AM by Author "pro27" in the forum "RC Airboats"
http://www.rcuniverse.com/forum/fb.asp?m=2015659