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  1. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, I did a little sketch of a way to do the landing gear.
  2. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, I did a couple wheel farings to see what the steering angles would be with 16 inch and 26 inch wheels. All these add on pieces need to be sliced for 1" styrofoam, probably the main fairing top could be faired easier with 1" foam as well
  3. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    Motofarang, I was looking at canopy shapes with 3 options. First is do the mould and blow form PET-G into it for a 1 piece canopy and paint the inside where you don't want glass. Second do a glass layup in the mould cut out a flat wrap windshield and glue it on flush with isocyanurate. Option...
  4. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, Need a little help here. I tried the little man in the model and he fits, however using him to get a guess on knee position I noticed that the BB is near the tire diameter which makes for a lot of overlap between the chainring and tire. Actually interference and no ability to steer...
  5. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, Just thought it needed to be bigger to read the text
  6. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, I sent the template files, including a 90% of scale outline inside the full scale outline. Well I backed up to last weeks model and superimposed the dimensions you sent me. There is one in red I need a number for. The model matches the full scale templates I sent you. Ignore the...
  7. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, Looks like the printer E-Mail address is no good. error "550 no such user here" Do you have any E-Mail we can use? Send it to my [email protected]
  8. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, New nose and 24" front wheel, guessing actual diameter
  9. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, First guess at the rounded nose. Is this what you were thinking or do you want a bigger or smaller radius. This bit would need one inch thick foam slices. This is the elliptical cross section continued. I am thinking you will be poking out just around template 6. Let me know the...
  10. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, I tried E-mailing the files to the E-mail address on the print shop. I got a failure to send notice on one print? How about check if they got 10 print files. Possibly print 1 didn't send. I included a 90% scale cross section inside the 100% scale outline. Cut that out first and see...
  11. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, 44 inches it is then. How do I get the print files to you? Can we E-Mail them directly to the printer? The wheel farings can have no gaps where they intersect the bottom of the shell. Total loss of laminer flow. However a splitter plate at the cut line like 4 inches below the...
  12. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang The bottom cross section shown is LONG? because higher up the full diameter tire steering needs the width. We can make the wheel faring like 25% wider and 20% shorter for the same steering, but frontal area of the wheel faring is bigger. Alternatively, the wheel faring can be split...
  13. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, I just spent about 15 seconds doing an unequal scale of your project. The wheelbase can be 25% longer that quick. The frontal area is identical and intuition tells me the Cd should be lower possibly negating wetted area drag increases? anyway it "LOOKS" more betta. Looking at the...
  14. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    mcrae0104, I did things that way when I was using Autocad 14 which doesn't loft. You can morph wing sections that way for intermediate cross sections. Set up two views, draw lines horizontal to a 45 degree line and down to the 90 degree view. Slow but doable. Remember that B29, P51, supermarine...
  15. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, The image you showed was last weeks. We are currently at the one posted here. Admittedly the canopy makes the profile look taller, however you still have to have knee clearance so the top and bottom shells can't change much. It would look nicer if it was scaled longer in length but...
  16. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, I got to thinkin ....again, that you might think the turtledeck is huge. So I printed a couple perspectives as well as a profile view. Note on the profile view that although you can put glass on all the purple "flat wrap" panel, only what is above the red area is above your top...
  17. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, Concerning air intakes. Just a thought. Put two NACA ducts where the skateboard wheels come out of the shell and when they go back in no need for a covering door. Any air tripped into the duct won't disturb passing laminar flow and you can put a flexible tube on the duct entrance...
  18. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    MotoFarang, Looks to me the wheel base is driven by where the BB and pedal swing is clear. That locates the front wheel position and the back wheel can't be ahead of the seat back. Longer wheelbase is more stable, shorter wheelbase more manuverable. Don't worry about cross section shapes they...
  19. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    Motofarang, Probably PETG. With the area behind the windscreen now not so steeply going down I think a "flat wrap" windshield on a turtle deck that is airfoil shaped in top and side view. This will put a roof over you and the shape will work as good as the nose as far as drag is conserned...
  20. W

    How to extrapolate the curve that connects airfoil coordinates for aerodynamic shape carved into foam by hand without CAD?

    Motofarang, Well I was looking at the bulkheads one of which is the seatback. The red blocks are just profile hot wire cuts. The blue and black ones are first profile cut then using end templates the bottom contour is cut. You might want to register an extra G-mail account to use for sending...
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