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  1. Larry B

    Sport Where to get foam for foam core wings????

    A giant profile, I'll bet that is a blast to fly!:way_to_go: What is the Lightning pattern plane? Is that an old design or a newer one for FAI style flying?
  2. Larry B

    Sport Where to get foam for foam core wings????

    What are you scratch building? So few modelers design and build their own stuff these days. I charge $875.oo for the short kit which consists of all the glass & carbon spinner parts that are on the blanket in the photo above. Then you have to order your wing and tail cores from Coby for...
  3. Larry B

    Sport Where to get foam for foam core wings????

    Here is a clip of it flying at a Warbird event up in Pennsylvania a few yeas ago. Even at 35lbs it still has a kinda high wing loading so you can't let it get to slow. This was the first flight at this field that day and I was a bit nervous with all the trees, I am really spoiled with my home...
  4. Larry B

    Sport Where to get foam for foam core wings????

    Thank you for the compliments, the 109E-4 is my own design 1/4 scale scratch built model. Power is from the good old G62. I made my own molds for the glass fuse and I have sold a couple of "short kits" to modelers. All the paint is Klass Kote, all the markings are either stencil or done by hand...
  5. Larry B

    Sport Where to get foam for foam core wings????

    +1, Flying Foam.com. Coby is the owner of the company and I have been working with him for many years now. He will sell you blank foam blocks of what ever density you need, or he will cut your cores with his CNC hot wire for a reasonable price. He has done my Bf 109E cores and cores for the...
  6. Larry B

    Scale Ambrosini SS-4

    Hey Abe, The only thing that remains to be seen from the Ambrosini is the grave marker from the test pilot who was killed during the second test flight. The airplane was first flown on March 7th 1939, the second flight took place on March 8th and ended in tragedy when the aileron came off in...
  7. Larry B

    new to GSN

    Welcome Russell, It sounds like you are quite an accomplished pilot. You are just 200 miles away from me here in NC, anyway welcome to GSN! I hope you did OK with this snow & cold snap we just had, we still have sheet ice all over the roads out this way, Larry B:welcome:
  8. Larry B

    Scale Ambrosini SS-4

    I almost forgot, to make the plug I just use some 1/4" plywood that I get at a lumber store. The entire thing will be made from this except for the stiffeners to keep the profile shape straight. I buy a 4X8 sheet of the stuff and end up using almost all of it depending on how big your plug is...
  9. Larry B

    Scale Ambrosini SS-4

    All right, since there seems to be a surprising amount of interest I'll start from the very beginning of this silly project. The first step is to find a good 3-view with as many cross sections of the fuse that you can find. With this project I am really limited and feel I was lucky to find as...
  10. Larry B

    Scale Ambrosini SS-4

    AKNick, The dual canard is really simple, the elevator is just hinged below the fixed canard surface. The idea was copied from Junkers, if you look at the Ju-87 the German built airplane did the same thing. I have no idea what the advantage of doing this is, maybe it provides a cleaner air...
  11. Larry B

    Scale Ambrosini SS-4

    Got the plug profile stiffened up using some 1.5"X3/4" glued along each side, a notch will have to be cut out of the cross sections to accommodate this stiffener. Also I have to cut out the thickness of the profile from all of the cross sections to keep the width of the plug accurate. If you...
  12. Larry B

    Scale Ambrosini SS-4

    Here is a shot of the ribs and wing lay-out, it will have to be a built up wing because of the elliptical leading edge.
  13. Larry B

    Scale Ambrosini SS-4

    Well I am going off the deep end again, it's become a personal mission to build a competitive scale canard! After deciding that the Ascender will never be a good contest model for many reasons I have had an alternate airplane in the back of my mind for several years now. The Ambrosini SS-4 is a...
  14. Larry B

    Discussion Did Sig stop selling wood?

    BipeGuy, Now that you mention it all I did see was airplanes, I did not know they had different web sites! js-rc, I'll check out their site when I have a few extra minutes. I am always looking for some good balsa, balsa USA has always been great to deal with but they don't have spruce, only...
  15. Larry B

    Discussion Did Sig stop selling wood?

    I am starting to look for some balsa & spruce for my next project and upon checking the Sig web site I could not find any spruce or balsa. Did they stop selling wood all together? It looks like if you want to buy some spruce now the only option is to go with Aircraft Spruce & Speciality, I...
  16. Larry B

    Howdy from Wisconsin!

    Welcome to GSN, it's a great site with all kinds of talent. I was also on RCSB for many years and "jumped ship" to GSN, I have been flying a little IMAC stuff and have met some really outstanding modelers here. I'll bet you have lots of building time up in Wisconsin, No time like the present...
  17. Larry B

    Scale Curtiss XP-55 Ascender

    What about this ; S.A.I. (Ambrosini) S.S.4
  18. Larry B

    Scale Curtiss XP-55 Ascender

    Thank you guys, there is no shock, I am getting used to crashing this thing. I am having serious second thoughts about the project and I realized from the start that it might not work out so I am not really upset by the crash. I may have over looked one huge rule of the canard world, all the...
  19. Larry B

    Scale Curtiss XP-55 Ascender

    Well today I tore it up. It's repairable but I am beginning to think it may not be worth it. This flight was done with the CG moved back 5/8" more and after making 3 approaches I stalled it. With the CG back this far the nose would not come down even with the application of down elevator which...
  20. Larry B

    Scale Curtiss XP-55 Ascender

    Ace, I understand what you are suggesting, balancing the model on the manufactures recommended CG location. My problem is that when you draw your own plans and design the thing from scratch there is no place to start other than the full scale CG location. In the case of the Ascender that has to...
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