First revision.

I painted the new plane today. All orange fuselage with the color extending 4 inches out onto the wing and stab. I'll ad some trim tape around the edges in a day or two. I weighed all the parts and came up with 46 ounces with a tongue muffler and 46.5 with the stock muffler. I didn't figure in any tip weight so another ounce to an ounce and a half. It's right in the ball park for the .46 size engine I'm going to use. The flaps and elevators are not installed yet.
 We got the puppy for the next week.

In the beginning.

While waiting for some lost luggage to be delivered I was doodling on a note book. I ended up with a side view of a plane that caught my attention. I stretched out a plans empty back side and started to lay out the fuselage full size. I started with the idea of a full fuselage, one with formers and an inverted engine, but ended up with a profile fuselage. It will be using the built up rear section to save weight and the engine and stabilizer will be on the same line. The wing will be 3/8 lower than that line. I have rib outlines for the Legacy 40 from the plans so I'll use them for the wing. I have a pair of aluminum landing gear I can use instead of wing mounted gear. Probably saves a gram or two. I'm going to need some more balsa.

Screw ups and findings.

The electric Pathfinder flys very well and looks pretty good too. That is something I don't do very often.
Anyway, after fixing the wing on the Shark 610 I built a new fuselage for it and installed an engine instead of electric. Shortly after finishing that project The wing on the Shark 665 broke in half during a flight. The outboard half floated down and plopped on the ground next to me. I had to walk the 60 feet to get the rest of the plane. I had built the wing in two halfs and glued them together with a butt joint. It would have been stronger it the joint was inside the fuselage but it was outside by an inch and that is where it broke. I cobbled another wing together using the Adjusto-Jig this time which lets me build the entire wing in one piece. The original wing had a twist as does the 610 wing and needed a tab to make it level in flight. Now the new 665 wing is straight and the plane flys better all around.
 Now to the first Shark I built a few years ago, the 560. I couldn't get an engine to run steady no matter what I did. After a few laps any engine, fuel, fuel tank combo would go to warp speed. No matter which prop or what I did to modify the engine the same thing would happen on every flight. I had an idea of the problem and looking back at my blog posts confirmed it. I wrote that I was going to build the plane like the plans showed even though I had concerns about the short motor mounts. I also used balsa that was too soft for the front end of the plane. That combo allowed the engines to set up a resonance causing the over speeding. I cut channels into the nose, removed the short mounts and installed mounts that extended back to the wing leading edge. About 4 times longer than the originals. A little paint slopped on and the problem was solved.
Next contest is in Dallas Presidents day weekend.