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There is steady, but slow progress on the 3rd build. A lot of things are competing for my time and my studio is hot as Hades after 11:00 am. It's hard to do paper modeling when you drip all over the parts. The airfoils are complete, and to a very high standard if I do say so myself. I built...

Good trip, and we never had to motor very far. I was the junior partner, but performed credibly. Day one was excellent small mouth fishing. Between the two of us we kept a 14, 15 and two 17 inch. A few pan fish were taken as well. A late morning 18" small mouth was released and we were at...

I'm a bit behind schedule, but then again I need to earn the money to pay for this hobby! All the Se5a airfoils have been revised and assembled for build No. 3. I'm really pleased with the results - I've never produced such true airfoils with such consistency and ease AND they are...

I had less time to hobby than I would have liked this week end, but made some good progress, largely "virtual" rather than actual building. After assembling the first revised wing I realized some minor changes could save more a bit more weight and result in a wing that is actually a bit easier...

I save 0.048 g for every square inch I can remove from my patterns. .0075 g cm2. Easy enough to do, might save a fraction of a gram with due diligence. I have been a bit lazy with some of my patterns to save scissor work. I just went to my plans and made 8 cutouts in my wing spar/spacer...

Genius! ME LIKEY

Ramping up again after the 4th. Hot as hell at home, I like to build early in the morning so I don't sweat on the paper. AC is used sparingly! I've been looking into wire alternatives, and it's going to be hard to beat the 6 strand phone cable wire for price and weight. I may be able to...

Schorhr suggested roughly the same thing way back when I first started. I could actually run the wire strands along the insides of the fuselage and solder in some short connection leads to mate up with plugs etc. It's an attractive idea and I'm going to pursue it. It would neaten up the...

Having not much to do early this AM, I put my latest build on the scales to get a weight. :eek: It had gained 4 g compared to the original! Now I had made a few modifications to the fuselage, but 4g is nearly one whole sheet of extra paper. Had I forgotten to weigh the battery in the...

It's a very cool model. The Wrights got it half right, but they picked the right half (Blade element theory).

Here is the link: http://s6.aeromech.usyd.edu.au/aero/propeller/blade_element.pdf There are implementations of this available. I wrote my own in mathematica, but when I upgraded to Windows 7 I couldn't download my very old Mathmatica to my new computer. I may have an Excel implementation...

Thanks Zathros, that is one very informative article. Actually, a whole bunch of 'em. Right up in the introduction I see: "In the good old free flight days, test glides were the norm, trimming out a model into long grass until the model flew straight and level just off the stall." I...

Updated, deleted

I've appreciated the discussion about what to do next. It was supposed to be sunny today, but we got rain instead, and the ground is soaked. Weather prediction is unreliable in the Mid West USA. Here is my plan. I going make sure I know where the CG is on the current RC prototype. Then, I...

Scaling up or down is always challenging. I have a paper Fokker Dr1 that flew well at 1:24, it was actually the first paper AC scale model I tried to motorize - way back at the turn of the century (love saying that). It would not fly at all scaled down to 1:32 - too much drag. However, I have...

Ship in the grass, you can just make out the rip in the fuselage, its the vertical line from just behind the lower wing cut-out notch traveling to the exhaust pipe. That's it as far as damage goes. Which is why I quit while still ahead. Enough, I've gotta make some $$$$$$$$

Here is a pic of me and the airplane after the 3rd crash. Taken by the fellow who lives adjacent to my flying field. Hope it's small enough to load, if not I'll edit it later today. Getting a bit behind schedule today!

Lots of good ideas. I reprogrammed the elevators last night. I hope the increase travel will just allow me to just trim things out without having to add ballast. I need to find a forceps to load the battery before I can try things out on the bench and verify the elevator travel is...

Taxi tests revealed my plane (with its anticlockwise turning prop) tends to yaw strong to the right on takeoff - could be the P factor and also the helical flow of the prop wash hitting the riight side of the rudder more. I actually didn't have enough rudder to avoid yawing on the initial roll...