I have an ultralight airboat built by Alaska Airboats in Wasilla. It is currently for sale.
Private message to me your email address and I will email to you pictures. I can't seem to work with photo bucket.
It will be in Craigs List soon. At this time Randy Quincey of Alaska Airboats is taking inquiry for me because I am often working in the field and out of town this time of year.
My boat is 3-years old, 12' long 6' wide w/a 110 hp 2-cycle Hirth ultralight aircraft engine, it has the state-of-the-art plastic bottom covering. These ultralight boats are made of riveted and ribbed aircraft aluminum. It is the super cub of airboats. Gross pay load is 1000 #.
With 2 people and 22 gallons of gas it will do 22 to 26 mph at 4200 to 4600 rpm with a 3-blade prop, average 5-gallons an hour (4200 rpm) with this load and do about 4 hours running time. The boat has 90 hours on it. I bought it new, it was the prototype, I had it built. It is not a toy.
Randy and Leonard are using the inline vortec marine engines right now (ecotec?) (probably so) and also offer the Hirth. Several boats have the Hirth and they work great. They tried the new rotax but it just wouldn't lineup or reduce right and it cost a lot, they bagged the rotax and went to the vortec.
Mine is a true ultralight. Size to weight it is the most powerful. But to get more HP and not deal with 90:1 mixing of oil and gas Alaska Airboats decided to also make the same size ultralight boat with the inline 4-cylinder engine. That engine is heavier but also has more power. It runs like a champ so far and it is fairly quiet too, like mine.
My boat is a dream to operate. My wife loves driving it. Unlike the Sport Jon, when you want to drive over an obstruction like a tree or beaver dam you slow down and drive over it under control, rather than speed up and fly over it out of control as with the Sport Jon. Big difference. No matter where you can go with the Sport Jon, I can go further and more safely in the airboat. It is generally quieter than the larger engines and uses lots less gas. It has absolutely no operational or navigational glitches whatsoever as operated in skinny water at safe speeds. When the water gets shallower you slow down in this airboat. It has worked perfect for fall rainbow fishing up the Talkeetna.
My boat works great for hunting. I have it rigged with oars and often float steering it with oars while calling spring bears. When it won't float anymore I start it up and motor to where it will.
If I don't sell it this year I hope to take it up the Ivishak or Ribdon for caribou. I bought it for guiding but due to other job opportunities I am not guiding on my own hook at this time. Thus, the boat is for sale. Contact me by email and I will deal in person.