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OUTBOARD AIRBOAT MOTOR

COLD

Well-known member
dragonflybig2.jpg
dragonflybig3.jpg
http://cgi.ebay.com/ebaymotors/Drag...yZ111122QQssPageNameZWDVWQQrdZ1QQcmdZViewItem

Just thought it was interesting! :lol:
 
Laura showed me this one this morning when she found it on eBay. Interesting contraption!

The motor is from the 50's - one cyl 2 stroke. If it craps out, parts may be difficult to find, but it sure would raise some eyebrows out on the lake where I take my jonboat!!!

Dang, you turn by pivoting the whole motor. I'll bet it's squirelly.

One good use for it may be to mount it on the bucket of a front end loader, and use it as a giant leaf blower. :idea: :lol:

matt.
 
The Dragonfly's used little Power Products 2 cycle motors, and parts aren't impossible to find but getting them usually means going on-line.

The pivoting transom mount can be made fairly easy from a transom clamp for a regular outboard if somebody wants to try to make one similar. They have to use this setup because the little props don't make enough thrust to give a boat any rudder authority, but on a small Jon boat they are a lot of fun.

I've thought of trying something similar on the bow of an airboat for froggin' and such, and because the mount can be made to turn all the way around if you want it would give you reverse. I saw one like that that had a steering "ring" all the way around it so that you could direct it any way you want. For the bow of a boat you could even make the thing for a drop-in mount like a fishin seat. :)

olf
 
I've got one on a 12' jon boat and it has rudders, and will turn in it,s own length. I used a 5.5 hp briggs motor and a Bears& Hersics 36x14 prop. The main problems are the boat needs more width, at 32" bottom width isn,t very stable but is great in tight places. The second is noise, even at an idle a one cyl makes lots of noise. I've even piggybacked the muffler and can't lower the noise to a comfortable level. The third problem is condensation in the gas tank, must have a water seperator and use it often. The low pressure created by the propeller causes the plastic tank to sweat a great deal. I've thought about insulating the tank and see if that will help, or maybe remove it and run an auxuraly tank but would need a fuel pump. The sad news is that the man who made my small prop passed away some time back and his wife tried to take over the company, but the state of Oregon refused to allow that. ( some tax issue I think), but the prop I have has been great.
 
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