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John A H

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Everything posted by John A H

  1. John A H
    Hi Phil, saw that - now it's in September (hopefully) even I won't have an excuse if I'm still trying to finish the model the night before. The only thing that maybe a show stopper on the build is not been able to get hold of paint if everthing is closed down. I've also remembered that I haven't yet ordered the canopy so will have to contact Steve at Vortex to see if he is still working in the present situation. Dirk, I don't think drawing up and 3D printing parts is as impressive as the artistry involved in producing your fiberglass speed brakes. I've just started planking the fuselage so that has sorted out the social isolation requirement for the next week. Hope everyone is well and "enjoying" the home schooling. Edited By John A H on 24/03/2020 00:53:47
  2. John A H
    Before gluing on the top wing skin I needed to make sure I could find the correct position to create holes for the wing munitions release cable controls to exit. By laying a sheet of clear plastic over the unskinned top of the wing I could draw the position of the holes related to the root rib and leading edge. Once the top wing skin was attached I used the plastic sheet template to cut the initial holes and then used small files to carefully open up the holes to the required sizes. The ball connectors are not yet glue to the control cables which made glueing the top wing skin on a lot easier.
  3. John A H
    The servo mounts can then be glued in position - hopefully flush with the top of the ribs. How it looks from below with one servo in position. The string is for pulling servo wires through the wing. and servo hatches in position
  4. John A H
    The servo hatch supports slot between the relevant ribs. Pins are pushed through the mount holes and bottom wing skin. The hatch template is then slotted onto the pins protruding out of the bottom wing skin I then cut round the outside of the hatch templates and the hatches can be removed. and the hatch frames can be glued in.
  5. John A H
    The Sabre build was on hold over Xmas and new year period due to a few other projects needing to be completed. Over the last few weeks I've got back to work on the Sabre. I lined the inside of the servo bays with fiberglass so that when the hatches are cut out they have some strength and retain their shape. I am mounting the HS65 wing servos so that the control rod will be at right angles to the trailing edge. I have created 3D printed mounts for them. On the right is the servo mount (that will be up against the top wing skin, centre is the hatch cover support frame work and left is a template to cut the hatch out of the lower wing skin. Below shows the same but with HS65 servo inserted.
  6. John A H

    John A H posted a gallery image in Member Albums

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    John A H posted a gallery image in Member Albums

  8. John A H

    John A H posted a gallery image in Member Albums

  9. John A H

    John A H posted a gallery image in Member Albums

  10. John A H

    John A H posted a gallery image in Member Albums

  11. John A H

    John A H posted a gallery image in Member Albums

  12. John A H

    John A H posted a gallery image in Member Albums

  13. John A H

    John A H posted a gallery image in Member Albums

  14. John A H

    John A H posted a gallery image in Member Albums

  15. John A H

    John A H posted a gallery image in Member Albums

  16. John A H

    John A H posted a gallery image in Member Albums

  17. John A H

    John A H posted a gallery image in Member Albums

  18. John A H

    John A H posted a gallery image in Member Albums

  19. John A H
    The lack of larger horns for the HS85 is why I ended up using a HS65 on the A4 Skyhawk. With my Sabre needing even more travel, due to the two stage/inner outer munitions drop, non of the standard servo horns were big enough. Also a custom horn means you can line up the holes for the best “straight pull” without been stuck with the standard horn geometry.
  20. John A H
    Hi Phil, yes I was going to bolt a oversize fibreglass plate to the servo horn (on the HS85 perhaps use the circular horn so you can have 4 attachment screws). Test out the position required for the wire attachment and drill holes in fibreglass plate then you can shape/cut down the plate around the attachment holes (if that makes sense).
  21. John A H
    Launch party approaching the slope …...
  22. John A H
    I few photo's of Pete's Jet Provost from today on the Orme. The light was very poor and the wind was blowing 60mph on the edge so my launch shots ended up as just a blur with the JP duplicating it's smaller scale brother's typical takeoff by ballooning upwards and backwards. I attempted to break pete's elevator trim switch while dialling in what seemed like 1,000 clicks of down for him. Once trimmed with a little more weight in the nose it flew well - I it had three of four flight before we were rained off. The flying shots that we attempted were black silhouettes. Launch party and pilot approaches the slope in determined mood. About to commit aviation Leaning into the wind Bob captures the action.
  23. John A H

    John A H posted a gallery image in Member Albums

  24. John A H

    John A H posted a gallery image in Member Albums

  25. John A H

    John A H posted a gallery image in Member Albums

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