Recent Content by Geraldc

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  1. Geraldc
    Post

    Composite fuel tank question

    My tank is not for a VP but was using as example of materials used. My tank is made with no foam only one layer fibreglass and one layer kevlar...
    Post by: Geraldc, Feb 21, 2020 at 12:53 AM in forum: Composites
  2. Geraldc
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    Composite fuel tank question

    I used one layer of 100 gsm (about 3 1/2 oz) on inside and one layer 200 gsm kevlar with vinylester
    Post by: Geraldc, Feb 20, 2020 at 8:12 PM in forum: Composites
  3. Geraldc
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    Anglin J3 Kitten

    There is a Facebook group called J-3Kitten and N-3Pup that has plans and other files.Some people on the site have cleaned up a few of the older plans.
    Post by: Geraldc, Feb 12, 2020 in forum: The light stuff area
  4. Geraldc
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    4500rpm propeller to negate the PSRU

    I have heard that a 6 blade excalibur on a Calidas gyrocopter made a significant improvement
    Post by: Geraldc, Feb 3, 2020 in forum: General Auto Conversion Discussion
  5. Geraldc
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    Raptor Composite Aircraft

    I think he is moving in the right direction in putting in bigger shafts on the pulleys. I would suggest turning out the pulley and putting large...
    Post by: Geraldc, Feb 2, 2020 in forum: Aircraft Design / Aerodynamics / New Technology
  6. Geraldc
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    4500rpm propeller to negate the PSRU

    Propeller calculation here. https://aircraft.e-props.fr/calculator.php Unless I have read it wrong they have found that more blades is better.
    Post by: Geraldc, Feb 1, 2020 in forum: General Auto Conversion Discussion
  7. Geraldc
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    Anyone have a GA37A315 file for solidworks?

    Here is an airfoil in qcad.The spline tool was selected and the co-ordinates just pasted in the box at bottom left that says next vertex.Or in...
    Post by: Geraldc, Jan 28, 2020 in forum: Aircraft Design / Aerodynamics / New Technology
  8. Geraldc
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    Anyone have a GA37A315 file for solidworks?

    Here are the co-ordinates in wordpad ready to copy. His file is as downloaded from Airfoiltools as a csv file. No messy excel steps. [ATTACH]
    Post by: Geraldc, Jan 28, 2020 in forum: Aircraft Design / Aerodynamics / New Technology
  9. Geraldc
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    Anyone have a GA37A315 file for solidworks?

    On airfoiltools.com once you find your selected airfoil you click the link to airfoil plotter and the linked page has an editing box for your...
    Post by: Geraldc, Jan 28, 2020 in forum: Aircraft Design / Aerodynamics / New Technology
  10. Geraldc
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    Fuel tank question

    You can leave a window in the kevlar with glass .Like on the old Ducati 750ss.
    Post by: Geraldc, Jan 20, 2020 in forum: Composites
  11. Geraldc
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    Fuel tank question

    I used kevlar and fibreglass.Here the Kevlar is the same price here as Carbon but is better for impact. Or you could use Kevlar and Carbon fibre...
    Post by: Geraldc, Jan 20, 2020 in forum: Composites
  12. Geraldc
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    Raptor Composite Aircraft

    https://www.aviation.govt.nz/assets/publications/fatal-accident-reports/zk-mbx-fatal.pdf The accident was caused by accidentally engaging nose...
    Post by: Geraldc, Jan 18, 2020 in forum: Aircraft Design / Aerodynamics / New Technology
  13. Geraldc
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    Raptor Composite Aircraft

    The exception seems to be the electric trim systems used on stabilators.I know of one fatality caused by one.
    Post by: Geraldc, Jan 18, 2020 in forum: Aircraft Design / Aerodynamics / New Technology
  14. Geraldc
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    Raptor Composite Aircraft

    If it was my plane I would take a large step back and fit tubes and bell cranks.
    Post by: Geraldc, Jan 18, 2020 in forum: Aircraft Design / Aerodynamics / New Technology
  15. Geraldc
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    Interesting approaches to cockpit cage construction?

    In my experience I have never seen a cheap tube bender that will bend thin wall tube . You need a mandrel bender to stop the tube collapsing and...
    Post by: Geraldc, Jan 16, 2020 in forum: Tube and Fabric
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