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  1. John wadman

    Chain Drive PSRU for V twins

    Anyone tried a chain drive PSRU on a V twin? How did it work?
  2. John wadman

    Suitable airframes for industrial engines?

    I’m interested in this thread because I’ve lived and worked in six or seven third world countries where 4130, 1/16” and 1/8” aircraft ply, AN hardware, etc just isn’t available and to import with shipping and customs costs is too prohibitive. Some of these places had woods that might have been...
  3. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    I’m in the process of mounting the cowl but I first wanted to add some stiffeners and some reinforcing tapes in the areas where the fasteners will go. You can see the darker areas along the vertical edges both right side and left side and the two horizontal ridges in each side. The ridges get...
  4. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    I glued some flanges to the bottom half of cowl to help align and fasten top half to. We cleaned up the flanges and prefit the cowl. I have some final trimming to do but she’s looking fairly good. Just have to figure out the hike for the intake and the air filter. It’s my understanding that...
  5. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Had to take care of some business at the builders supply company today so went out in the warehouse afterwards and hallelujah, what did I find? A whole new shipment of 1 x 4s in 14 and 16 ‘ lengths. Spent an hour going through them and found about ten boards that showed promise. Took them out...
  6. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Yes, but I’m building much with 3/4 x 3/4 so figured I should see what calcs I came up with for them.
  7. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    I’m still not working in the RW 19/20 because too many projects, like doing the firewall forward in the RW6 and building my wife her dream house. Got the cowl off the mould (took a bit of work to get it unstuck with a long flexible metal ruler sliding it all around to pop the part from the...
  8. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Well, I sanded the cowl mold with 400 grit and wiped it down. Then I applied two generous coats of an auto paste wax and rubbed them out. I then applied a layer of fiberglass mat and overlapped all of the joints. Mat lays or blends better if you tear the edges. Then a single layer of boat cloth...
  9. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    I reread a previous post and realized that I had mentioned how I built my last cowling mold and I had originally intended to build this one the same. . . with foam and then joint compound fairing. It's a hell of a lot of work and sanding to do it that way (foam dust everywhere including body...
  10. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    The radiuses on this cowling are from 3/8 to 1 1/2". The top is about 6" radius. It looks a bit boxy and the front is flat with about a 1 1/2" radius into the top and sides BUT, I think with a prop spinner it will draw attention away from the flat front behind the spinner. I think it will look...
  11. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Once again, nothing new to report on the RW 19/20. . . BUT I'm working on the RW 6 and trying to finish firewall forward. I found about this web site too late to start a build log on it, so I'm tagging it on to the RW 19/20 build log. Fabicated the throttle/choke control and painted it. Ready to...
  12. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Building the male mold for the two piece cowling. Just have to wrap the top part around the mold with a piece of flexible fiberglass and glue it, fair the glue joint, final sand the “plug” or mold, seal and wax it and start laying up layers of boat cloth. The heads and most of the jugs stick...
  13. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Once again, not the RW19/20 but I’m getting the little plane closer to testing. I got the gasolator installed, the hose to carb made, the fittings and fuel shutoff installed on the tank and made my throttle/choke control. Just need to paint the control tomorrow and it will be ready to bolt in.
  14. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Well, the engine is mounted in the RW6 and I’m designing and building the fuel system. It will be a basic cowl tank gravity feed system to a firewall mounted strainer to the carb. The fuel gauge will be the dual tube (90 degree ram air and vertical tube for 1/8” piano wire and cork float)...
  15. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Not part of the STOL build BUT, the 1/2 VW is mounted on the RW6 and is ready for fuel system hookup and the control cables for the throttle/choke. I'll make a drawing of the fuel lines with fittings and dimensions and drop it by the hydraulic place. they will make it up with aeroquip. I looked...
  16. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Used this weekend to sand the new motor mount and paint it. I also laid out the mount plate and cut and drilled all holes. I’m ready to mount the engine tomorrow. The bushings fit in the four 7/8” holes and mount to the engine back to isolate and dampen vibration. The plate gets bolted to the...
  17. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    Have the new (second attempt) motor mount for the RW6 welded together but still have to clean it up and paint it. It incorporates a 1/4" aluminum plate mounted to the back of the motor with the rubber bushings set up. The plate allows me to move the tubes of the welded portion to better...
  18. John wadman

    Ragwing RW19 wood and fabric Stork (Storch)

    We built a new motor mount and I think this one is going to work. Photos to follow once it’s cleaned up.
  19. John wadman

    Alternatives to spruce in wooden aircraft construction?

    I always thought that the grain in spars/spar caps should run parallel to the ground too. At Sun n Fun I was looking at a kit aircraft and the spars were running with the grain vertical to the ground and I questioned the representative. He told me that was the correct orientation. On the plans...
  20. John wadman

    Why does everyone build using a cold mold method?

    I think the person above meant to say foam sandwich construction instead of cold molded construction.
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