RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)
Gee whiz! I have been following your Nieuport build and didn't even know about the mayhem over here! The immortal words of my father still echo in my ear..."If you're gonna cry every time one of those damn things crashes, get a new hobby!!" He was a loving man, honest, just not an aviation afficianado. (Besides, now I wait until I am in the workshop by myself with a bottle of scotch to cry...is that wrong?[:(]) So while my flying never really got much better, I did get better at fixing things. Glad to hear that you are giving her a second chance.[:)]
Posted on: 8/20/2012 9:35 PM by Author "Moosehead2" in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=11200477

RE: Balsa USA 1/4 Scale Nieuport 28 Build
Hey SDP, Once again you are doing a fantastic build thread. I feel like a groupie!! [:)] Do you have any pics of your table saw setup? Is it a full table saw with a different blade or a smaller hobby sized table?
Posted on: 8/14/2012 10:52 AM by Author "Moosehead2" in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=11193191

RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)
SDP, Absolutely fantastic build! I have thoroughly enjoyed following it and am not shy to say that I will miss logging on to see what progress you have made. Congratulations again and definitely post some pics or video of the maiden flights and completed aircraft, I would love to see them.
Posted on: 3/21/2012 11:17 AM by Author "Moosehead2" in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=11009650

RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)
Absolutely Gorgeous! SDP, you are really setting the bar awfully high you know! Geez, when I build mine, it's gonna be like trying to duplicate Grandma's blue ribbon strawberry jam! I am really looking forward to seeing the finished product. Fantastic job. You have mentioned a couple of times, different glues and adhesives...wood glue, Gorilla, CA, epoxy, etc. I've always considered CA to be the magic bond-all but you seem to have a very definite methodology behind where and why you use each glue? Am I allowed to ask what it is?
Posted on: 11/17/2011 9:10 PM by Author "Moosehead2" in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=10817468

RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)
[quote]ORIGINAL: SunDevilPilot I have started to figure out how I am going to do the flap hinging. To do so I made up a template of the wing to see how the flap would function with the hinge moved around. I tried several different orientations of the hinge and this is what I came up with. This is most likely how I am going to configure the hinge. From my research I have found the hinge line of a real PA-18 is rear of the leading edge of the flap. [b]However, I am not sure I want to go to the length it takes to cut such a hinge into the flap. With the hinge as it is there will be a small amount of air escaping from the bottom of the wing to the top which should help with the issue of ballooning with flap deployment.[/b] Thoughts? Despite the hinging I have started to add the hard points into the surfaces. SunDevilPilot [/quote] SDP, I love this thread. Reading and seeing your progress is truly a highlight to many days. (Geez, what's the rest of my life like eh? Don't tell my wife I said that!) Anyways, please blame the following wordy explanation on too much schooling and not enough Xbox. Air passing over the wing can be divided into a couple of groups. The air closest to the wing is called the boundary layer. It is responsible for all of the lift. At the front of the wing, air starts out as “laminar� or smooth, and creates LOTS of lift with very little drag. Gliders try to create wings that maintain that laminar flow over the entire chord. Unfortunately, as the boundary layer passes over the wings, friction slows it down and it begins to tumble and become turbulent. Turbulent air still creates lift! Think of the vortex generators people stick on the upper camber of STOL aircraft. As long as the boundary layer is still against the surface of the wing, it is creating lift. Unfortunately, towards the trailing edge of the wing, the boundary layer has lost a lot of energy and can easily be separated from the wing by the higher pressure under the wing, wrapping around the trailing edge. It is now no longer creating lift and there is only drag. Flaps create lift in part by increasing the angle of the wings relative chord line to the relative wind. It essentially increases the camber of the wing and increases the angle of incidence. Ie. More lift. Unfortunately, everything described above still happens so most normal plain flaps are not as effective as they could be. By introducing a flow or relatively high pressure air from below the wing, through a gap, and then over the flaps, it re-introduces energy into the boundary layer airflow and makes the flaps that much more effective. These are called fowler flaps like on most Cessna products or slotted fowler like we see on most airliners. They unfortunately come at a cost of complication, mechanics and weight…none of which you need on a piper cub. However, by placing the hinge behind the leading edge of the flap, you can effectively create a slotted or fowler flap that moves back and down, creating more lift area, a deeper chord line, as well as creating a gap through which the lower airflow can re-energize the boundary layer. This is essentially the same system deHavilland used on most of its aircraft including the beaver. The down side was the physical hinge hanging in the airstream creating drag, but hey…when you are only flying 90mph anyways, who cares. This is a great link to some research. http://adg.stanford.edu/aa241/highlift/highliftintro.html
Posted on: 8/31/2011 12:42 AM by Author "Moosehead2" in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=10694576

RE: Sig 1/4 J3 Kit converted to PA-18 Super Cub (Build)
Where'd you go?!? Sundevilpilot...you've got me addicted to your thread. For the love of GOD man!!!...don't stop now...this is a great build![sm=drowning.gif]
Posted on: 4/9/2010 2:47 AM by Author "Moosehead2" in the forum "Kit Building"
http://www.rcuniverse.com/forum/fb.asp?m=9648093