This is the XL Cat by Jay Turner. Plans for it are on rcboatmodeler.com Mine is 19" long total. Running on 6 and 7 cell with a stock motor. My sponsons were a little on the skinny side of my first build. This caused the boat to dig in on the outside sponson while cornering and loose a lot of speed. I just popped them off and made new ones. Tested yesterday...much better! The only place I strayed from the original plans are the steps on the sponsons to help break it loose from surface tension. It has Octura hardware with the .098" flex shaft to 1/8th prop shaft. Right now running a X432 from Octura. Still more testing to get the most out of the stock motor. Total cost of hull without hardware...$30. 15 for the wood. 10 for the Econocote. 5 for epoxy. Not too bad!

Some of the finished boat.

Won't let me upload all at once. Here's a couple more.

You did a great job, excellent build! That has been my most popular design, modified by lots of folks from 14" up to over 24" in length. I never tried steps on that particular hull, but they worked well on others, increasing speed but degrading turning slightly. Your steps are not too large and probably don't hurt turning much at all. Congrats! [8D]

Thanks Fluid! I think it's a great design. My oldest brother and I both built one. Super light if built right. I can't wait to stick a mod motor in...because it's goes good with a ROAR stock motor. More tweeking on the lake tonight.

very nice.