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Blackhawk

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Everything posted by Blackhawk

  1. Blackhawk
    Thanks Ian
  2. Blackhawk
    Hi dj_rex I sent you a pm but never received a reply, If you still want the information contact me.
  3. Blackhawk
    Sent you a PM
  4. Blackhawk
    If you can send me an email to <[email]grarobwil@bigpond.com[/email]> I can send you all the information or you can ring me on 07 4129 4212. Cheers, Graeme
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  5. Blackhawk
    There are a lot of difference way's to produce a coaxial propeller drive This sketch could be one Or you could use one of these https://www.youtube.com/results?search_query=Drive+for+coaxial+propellers+1+-+10 Just work on what suits your application best; but I would use belts to the prop shafts.
  6. Blackhawk
    Only a concept.
  7. Blackhawk
    Oh, Yeh !
  8. Blackhawk
    No, it's a side by side boxwing design, but not a Ligeti Stratus.
  9. Blackhawk
    Bevel gears in a counter rotating gearbox makes it too complicated and heavy; it can be done with spur gears only and will run smoother an quieter.
  10. Blackhawk
    Just go up 4 posts; the 3 view drawing is there; it's fully enclosed so you can't see the internal tube frame but basically the same setup as the HM-1000 But not a flying flea design; it's a boxwing.
  11. Blackhawk
    Well; all I can say is I'm glad your not designing my concept aircraft. I don't know where you got 100-150mm high speed bearings and especially a bevel gear system. If you look closely at the HM1000 photo you will see the tube that has the prop hub is about 44mm so the solid bearing shaft would be 38mm, so the bearings would be 38mm ID x 63mm OD x 4 off (2 at the front of the hub and 2 at the hub. This is a proven system and has been operating for nearly 20 years. Being a belt drive it gives you the required reduction and would be turning the prop at about 2700rpm max. and using belts, torsional vibrations are almost nil. The top support for the rear fuselage is that thin solid round bar (about 20mm OD) that connects to the 38mm solid bar at the front of the prop. Haven't got a clue where your bevel gear system would go.
  12. Blackhawk
    This is another brilliant mid tailboom propeller aircraft; the HB-204 Tornado tandem seat trainer.
  13. Blackhawk
    This is my concept mid boom propeller aircraft; a bit heavier the yours at 600kg MTOW and the boom has more support from below. It should have very good handling characteristics and light on fuel. Unfortunately no folding wings.
  14. Blackhawk
    The HM-1000 (which is a Flying Flea design) in the above photos has a Rotax 582 engine. Now watch the video and see how well it performs.
  15. Blackhawk
    REALLY ?
  16. Blackhawk
    Hi Deskpilot, Been following your design from the start, where are you up to with it. I've had a passion for the tailboom propeller aircraft because of the protection given to the prop and the better efficiency. Counter rotating props could be done without being complicated. I've been tinkering with a boom prop design myself.
  17. Blackhawk
    Hi Ian, Are you still sending out the "Last week's most popular topics" each weekend ?? I haven't been receiving anything since August last year. Cheers, Graeme
  18. Blackhawk
    I've listed this engine in the classifieds for anyone that may be interested
  19. Blackhawk
    Well, the latest news for the Aquila Airpark in Maryborough is : DEAD There has been no interest shown since the FCRC Approval and the owner/developer has called it quits; he's not prepared to spend $5M on the off chance some aviators may become interested. He has the property up for sale on https://www.realestate.com.au/property-house-qld-yengarie-130542762 Development Approval has lapsed and is not included, but could be resubmitted by new owners.
  20. Blackhawk
    Did you get my emails of 9.12.18 and 18.12.18
  21. Blackhawk
    Hi Ian, Have you fixed that link "Please see here for details of being registered as a Supplier" I am waiting to register for the products that I sent you in emails which haven't been acknowledged as yet. I would like to get it done before January 1st 2019 Cheers
  22. Blackhawk
    Hi Ian Your link, "Please see here for details of being registered as a Supplier" is not working. Does it still exist Cheers
  23. Blackhawk
    Yes, it was a great day for the first time event at Maryborough Airport and the word is; it could now be an annual event. Congratulations to all the organisers and helpers for a great trouble free day out.
  24. Blackhawk
    They're only available to European customers "Delivery of complete 2-cylinder 4-stroke HB Boxer engines engines (import and export within Europe)"
  25. Blackhawk
    At Maryborough Airport in Queensland a New Military Aviation Museum has been formed and we are looking for any aviation material you may have hidden away in storage somewhere. If anyone has any parts of aircraft or airforce memorabilia pertaining to the Maryborough Wireless Training base during the second world war, please contact me by PM One main aircraft that the museum is focusing on is the CAC Wackett Trainer, so if anyone has a spare plane sitting in their old shed (any condition is OK) or any parts from one please let us know. Any donations of memorabilia would be greatly appreciated as this is a not for profit organisation.
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